Jump to content

Muzishare X7 tube amp owners out there?


Recommended Posts

Morning Folks

 

Wonder if any SNA own , or owned one of these tube amp? Before i ventured in to uncharted waters , interested to hear opinions from owners :)
 

https://www.china-hifi-audio.com/en/muzishare-tube-amplifier-c-51/muzishare-x7-kt88-x4-integrated-tube-amplifier-power-amp-mm-phono-headphone-p-1425?zenid=9ec442cffd34aef257a6a93b5ddccef1

 

 

  • Thanks 1
Link to post
Share on other sites
  • Replies 61
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Popular Posts

Just a quick update, received the x7 yesterday ! seller took awhile to dispatch(aprox 1 week) , but after dispatch fedex took 5 days to get here.    some photos from my phone , overall the q

Being in Singapore, I am aware of lots of Chinese Tube amps in the market. PrimaLuna and Ayon which claim to be European Brands are "Designed in Europe" are all made in China. So bottom line is that C

Well, after doing some research and looking at my needs, I took the plung and purchased a Muzishare X7 largely by reading multiple web postings and the above comments.  I was also pondering the Willse

Hi, only speaking from 2nd hand experience as you've had no 1st hand replies as yet.

.. Muzishare has been highly regarded by owners.. Comes out of the same factory as the Willsenton R8 and Line Magnetic.. Looks to be an incredible piece of Kit and if an "Identical" 25kg amp was built here, it wouldn't be cheaper than $4,000 one wouldn't think.. The Amp that outsells the X7 is the Willsenton R8. They are constantly running out of them and are on backorder again. $200 cheaper because no phono stage.. If you need a phono stage the X7 is a no brainer according to buyer satisfaction, otherwise the Willsenton R8 which can be shipped with optional KT88, 6550, or EL34 tubes so gives flexibility there.. Great you can use X7 or R8 as a dedicated power amp as well.. Good Luck. 

  • Like 1
  • Thanks 1
Link to post
Share on other sites

The Elekits would be great too i'd imagine coming out of Japan. (It is on a PC Board) The Japanese are too proud to build crap (they just won't). The Chinese mindset is different... They'll build it to whatever spec you want. It you want a $50 Piece of rubbish, they'll build it.. If you want the very best plated in Gold, they'll build it for $50,000. 

 

We live in strange times. I was reading a thread where a bloke bought a Chinese Reisong/Boyuu A10 (10 watt Single Ended El34.point to point) for $US250) for a bit of fun and was gob smacked when he plugged it in and preferred it to his usual  amp, the First Watt F7 $US 4000.($8,000 here) Truly bizarre! The Nelson Pass amp has been 'Shown the Door' I am considering buying the bigger brother Reisong A20 KT88 Single Ended 18 watts  big output trannies (17kg) Basically a power amp with volume control.. You can plug either a source into it OR your favourite preamp. Point to Point wired $600 AUD landed i think.. Then go and spend $1000 on some fancy interconnects for it LOL!!   Pic attached. 

IMG_20200901_171054.jpg

IMG_20200901_170506.jpg

Edited by bryansamui
  • Thanks 1
Link to post
Share on other sites


Thanks @bryansamui for the response ! 

 

Just checked this thread today and saw some responses ! 

 

I actually got too impatient yesterday and ordered both the muzishare x7 and Willsenton r8 from AliExpress , got a bit too crazy lately! I should stop watching YouTube reviews . 

 

Will compare them and see which one comes out on top 

Edited by demoiree
  • Like 1
  • Thanks 1
Link to post
Share on other sites
15 minutes ago, demoiree said:

Thanks @bryansamui for the response ! 

 

Just checked this thread today and saw some responses ! 

 

I actually got too impatient yesterday and ordered both the muzishare x7 and Willsenton r8 from AliExpress , got a bit too crazy lately! I should stop watching YouTube reviews . 

 

Will compare them and see which one comes out on top 

Wow!.. Good on you... I don't know but i'm picking they'll be the same lol... Wait until they both 'break in' before you decide.. Both great amps i'm sure.... I'm tempted to go the 'Single ended' route for fun (It's a gamble too!) Raisong A20 KT 88  18 watts. Should drive my speakers easy i think? 

  • Like 1
Link to post
Share on other sites

@bryansamui 

 

I think they will sound quite different given that both has diff preamp tubes (6sn7 6sl7 vs 12au7 12ax7) 

 

Also the muzishare has rectifier tube  . 

 

I opted el34 for the Willsenton so kind of diff , but will try kt88 on both for comparison purposes , as x7 can only use kt88

  • Like 1
Link to post
Share on other sites
  • 2 weeks later...

Wow nice one!  I too have been looking at these and wondering how they compare. I prefer the look of the muzishare(looks nicer quality) over the wilsenton but as you mentioned, the wilsenton has the option of using el34 tubes that, according to some, sound more musical or “tubey” than KT88’s. Needless to say, I am very keen to hear your impressions once the amps arrive.

 

Slight sidetrack, I would also LOVE to know how willsenton and muzishare sound compared to similar line magnetic amps. Also, the large Muzishare/willsenton 805/845 tube amps, how do they compare to the much raved about LM805/845 that are more than double the price??

Being able to order all these amps in 240V makes it all very tempting... 
 

 

 

 

 

Edited by Champtaste
  • Like 1
  • Thanks 1
Link to post
Share on other sites


Being in Singapore, I am aware of lots of Chinese Tube amps in the market. PrimaLuna and Ayon which claim to be European Brands are "Designed in Europe" are all made in China. So bottom line is that China makes the bulk of the tube amps in the world today. And since most of these Tube amps are old designs with schematics available, the Chinese picked it up and started making Tube Gear. Some are crap and some are very good. Among the Chinese made amps, Line Magnetic is probably the best in terms of the quality and it can hold its own with western made brands. Line Magnetic was started by Ex Cayin guys who were passionate about vintage Western Electric gear. Cayin also is a HiFi company. Wilsenton and Muzishare are basically put together by people who also manufacture non musical gear. That is not a bad thing, after all a tube amp is a simple device and point to point wiring only needs a skilled pair of hands and instructions to follow. 

There are two factories that produce most of the tubes in China and since not all tubes are made equally, the lower quality ones are used for the cheaper amps. The same is for chasis and transformers. Nothing is ever discarded. It is just sold for a cheaper price and then put together and branded. Most of the people who I know that use these cheap amps, never use the stock tubes at all. Put in some good quality tubes and you will get decent sound. In my opinion it is a good way to discover tubes on the cheap as long as your expectations are in check. 

I look forward to your journey. Cheers and Enjoy the music. 

  • Like 4
  • Thanks 1
Link to post
Share on other sites
On 21/09/2020 at 5:55 PM, Champtaste said:

Wow nice one!  I too have been looking at these and wondering how they compare. I prefer the look of the muzishare(looks nicer quality) over the wilsenton but as you mentioned, the wilsenton has the option of using el34 tubes that, according to some, sound more musical or “tubey” than KT88’s. Needless to say, I am very keen to hear your impressions once the amps arrive
 

 

 

 

 

EL34 has a good midrange but many find the bass to be thin. It all boils down to the design of the Amp. If sounding Tubey means warm relaxed sound, then pre amp tube rolling will give you plenty of options. Cheers

Edited by BrownMagic
  • Like 1
  • Thanks 1
Link to post
Share on other sites
16 hours ago, BrownMagic said:

Being in Singapore, I am aware of lots of Chinese Tube amps in the market. PrimaLuna and Ayon which claim to be European Brands are "Designed in Europe" are all made in China. So bottom line is that China makes the bulk of the tube amps in the world today. And since most of these Tube amps are old designs with schematics available, the Chinese picked it up and started making Tube Gear. Some are crap and some are very good. Among the Chinese made amps, Line Magnetic is probably the best in terms of the quality and it can hold its own with western made brands. Line Magnetic was started by Ex Cayin guys who were passionate about vintage Western Electric gear. Cayin also is a HiFi company. Wilsenton and Muzishare are basically put together by people who also manufacture non musical gear. That is not a bad thing, after all a tube amp is a simple device and point to point wiring only needs a skilled pair of hands and instructions to follow. 

There are two factories that produce most of the tubes in China and since not all tubes are made equally, the lower quality ones are used for the cheaper amps. The same is for chasis and transformers. Nothing is ever discarded. It is just sold for a cheaper price and then put together and branded. Most of the people who I know that use these cheap amps, never use the stock tubes at all. Put in some good quality tubes and you will get decent sound. In my opinion it is a good way to discover tubes on the cheap as long as your expectations are in check. 

I look forward to your journey. Cheers and Enjoy the music. 

Well said (BrownMagic).. Slightly off topic, but their Solid State offerings look magnificent. Spotted these 30kg Pair of Monoblocks $AUD 870. .Using Sweet sounding Toshiba Jfets..  200w per Mono into 8ohms, 400  watts into 4. Lot of Amp. If an  identical pair was made in the west, wouldn't get any change out of $20,000 I wouldn't think.

T300.jpg

T300 1.jpg

Edited by bryansamui
spelling
  • Like 1
  • Thanks 1
Link to post
Share on other sites

Just a quick update, received the x7 yesterday ! seller took awhile to dispatch(aprox 1 week) , but after dispatch fedex took 5 days to get here. 

 

some photos from my phone , overall the quality & feel more superior than Willsenton R8 , internal guts looks very tidy , signal tubes are  JJs(not shugang or beijing) , beautiful illuminated va meter , remote feels more quality(less noisy), even the IEC cable are thicker and more quality. 

 

still burning in at the moment , so not doing any serious listening / compare. 

 

Overall pretty impressed for the built quality alone .

20200924_131224.jpg

20200924_131343.jpg

20200924_131527.jpg

20200924_131543.jpg

20200924_131721.jpg

20200924_132015.jpg

20200924_132020.jpg

20200924_132257.jpg

20200924_132330.jpg

20200924_133642.jpg

20200924_140951.jpg

20200924_143652.jpg

Edited by demoiree
Typo
  • Like 7
  • Thanks 1
Link to post
Share on other sites


10 hours ago, mrbugeyes said:

Greetings.  Does the amp come with a readable English instruction manual.  Cheers.

Yes it does! Slightly chinglish but can still understand the gist

  • Like 1
Link to post
Share on other sites
16 minutes ago, BLAH BLAH said:

Very nice @demoiree  thank you for the pics... that Muzishare looks the goods! 

Will wait for your evaluation of it's performance...

My pleasure ! Sure will , so far I've been quite impressed , I even tried powering my power hungry ATC scm40 , seems no problem controlling it. 

  • Like 1
  • Thanks 1
Link to post
Share on other sites


Just now, BLAH BLAH said:

Very nice...👍

yeah ! the vu meter is quite sexy . 

 

before purchasing the x7 , i was reading some chinese forums , some insider says line magnetic co-own muzishare , so you may see some commonalities between the two.

  • Thanks 1
Link to post
Share on other sites

Good thread

 

I bought the Wilsenton R8 about 6 weeks back, they were on back order and it shipped 4 weeks ago...just waiting for the ship to arrive now, I chose sea mail as it was considerably cheaper.  Should arrive in the next week or 2 looking at the tracking.

 

Will keep an eye on this thread!

 

Cheers

  • Like 1
  • Thanks 1
Link to post
Share on other sites
  • 3 weeks later...

I recently aquired one of the X7's and would be interested in the followup of the X7 vs R8 comparisons. So far my impressions are good. Great dynamics and imaging but hoping it will become a little more laid back in time. Maybe 20 hrs so far on it. Any updates on this would be greatly appreciated...

  • Like 1
Link to post
Share on other sites
On 17/10/2020 at 1:06 PM, Xlrg said:

I recently aquired one of the X7's and would be interested in the followup of the X7 vs R8 comparisons. So far my impressions are good. Great dynamics and imaging but hoping it will become a little more laid back in time. Maybe 20 hrs so far on it. Any updates on this would be greatly appreciated...

@Xlrg congrats! I'm loving mine too! mind you they are still burning in and I have not done full critical comparison tests , but here are my initial impressions for each:

 

X7

Pros

- overall Better build, volume knob etc feels good at touch, has that Luxman feel to it.

- stock tube have lower noise floor  than R8, signal tubes are Slovakia JJs

- love the dual Vu meters , easier to bias with one hand as you can turn a switch to a valve to view its current on each vu meter.

- remote control feels more luxury,  single piece of aluminium , also buttons are quieter.

- one 12ax7 voltage amplifier tube , cheaper to roll 

- has tube rectifier

- has phono-input

- switching to pre-amp mode , no background hissing

 

Cons

- when running stock preamp tubes , i feel it is lacking a layer of "air" on the top , but when i swapped in some NOS RCA 5963 , it makes it more holographic .

- lacking that lush mid-range boost that el34 offers , but manufacturer says X7 can take EL34 with correct bias adjustment , so will try that out later down the track.

- remote control can only change volume and mute(cannot change TR/UL or input selection) .

 

Stock tube(KT88 & stock JJ preamp tubes) sound signature

- UL mode powerful, great bass control , clear highs , less "air" when compared to R8 

- TL mode : mids becomes touch better and highs are more rolled off, very relaxing to the ears , great for vocals in this mode.

 

R8

Pros

- ability to switch between EL34 and KT88 tubes 

- remote control able to switch TR/UL , also input selection

- better mid range , possibly due to EL34

- comes in all black

- many good options on good NOS 6SL7 & 6SN7 , with good tubes I believe the R8 can sound very good.

 

Cons

 - no memory of TR/UL selection , always default to Triode on start up

 - higher noise floor than x7(stock tubes)

- stock tubes aren't that great, sound stage slightly bias to one side( stock tube not matching)

- more preamp tubes , more expensive to roll , i.e two good 6SL7 are expensive

- biasing requires two hands , i.e hold on to a toggle switch to view the bias , and another hand to turn the pot.

- no moving VU meters when music playing

- remotes not as good quality , buttons are noisy.

 

Stock tube(EL34 & stock chinese premap tubes ) sound signature

- UL mode:  good bass , I'm actually quite surprised that it doesn't sound too much different than the x7 when playing at moderate volume . but can start to hear it struggles when playing louder .  sound stage is more spacious and has more air than x7.

- TL mode : great mids and still can hear good transparency and nuances , overall I can say vocal sounds more pleasing than the X7 in  TL mode.

 

 

 

having said, all are my own humble opinions and i feel there are too many factors that can affect the sound , its really hard to compare when it is not apple to apple! Each has their own strength and I can imagine myself keeping both for sometime to come.. as they are not completely the same and has so much room to improve when you throw in some good tubes.

 

  • Like 2
  • Thanks 2
Link to post
Share on other sites

@demoiree thank you kind sir, you are the only source I can find comparing these two brands.  Have you tried putting the muzishare kt88’s in the willsenton? (to compare amps directly)

I think Iam going to buy either muzishare x9 (300b) or willsenton r300b, (to pair with high efficiency speakers) so I am looking for ANY indication that the muzishare brand sounds better and is worth the significant $ over willsenton. Like you, I may just have to take a chance! (On 1 not 2 unfortunately).

  • Like 1
Link to post
Share on other sites
1 hour ago, Xlrg said:

Thanks for the detailed comparison this far. Do you have any more info on using EL34's in X7?

No worries , from the schematics the B+ voltage is around 450v, the bias for EL34 should be around 30-35ma , but it may not sound as good as it is not built for EL34. also not sure of the long terms effects on the tubes (may shorten the life of tube)  .

 

i'll try it one day for the sake of trying , but i wouldn't use it long term.

Link to post
Share on other sites
3 minutes ago, Champtaste said:

@demoiree thank you kind sir, you are the only source I can find comparing these two brands.  Have you tried putting the muzishare kt88’s in the willsenton? (to compare amps directly)

I think Iam going to buy either muzishare x9 (300b) or willsenton r300b, (to pair with high efficiency speakers) so I am looking for ANY indication that the muzishare brand sounds better and is worth the significant $ over willsenton. Like you, I may just have to take a chance! (On 1 not 2 unfortunately).

my pleasure! yes , but only briefly , it did sound more similar when running KT88 on the R8 , better bass control , deeper , clearer highs( sharper treble)  

 

however i still notice hiss/noise running KT88 on R8 , so i think the stock chinese preamp tubes are noisy. i'll report back if i happen to get some quality 6SL7 if the noise still present or not.

 

all in all , i found the sound is more refined when running Kt88 on the X7 , instrument separation , darker background , bass control etc is slightly better on the X7 

 

 

  • Like 1
  • Thanks 1
Link to post
Share on other sites
  • 4 weeks later...
On 18/10/2020 at 8:18 PM, demoiree said:

my pleasure! yes , but only briefly , it did sound more similar when running KT88 on the R8 , better bass control , deeper , clearer highs( sharper treble)  

 

however i still notice hiss/noise running KT88 on R8 , so i think the stock chinese preamp tubes are noisy. i'll report back if i happen to get some quality 6SL7 if the noise still present or not.

 

all in all , i found the sound is more refined when running Kt88 on the X7 , instrument separation , darker background , bass control etc is slightly better on the X7 

 

 

Thanks a ton for your impressions. A month later, which do you prefer?

  • Like 1
Link to post
Share on other sites
On 19/10/2020 at 10:11 AM, demoiree said:

No worries , from the schematics the B+ voltage is around 450v, the bias for EL34 should be around 30-35ma , but it may not sound as good as it is not built for EL34. also not sure of the long terms effects on the tubes (may shorten the life of tube)  .

 

i'll try it one day for the sake of trying , but i wouldn't use it long term.

My custom amp has 450v B+ and is designed for EL34's, and yeah, biased at 35ma.

 

Not sure what the worry is for EL34's in the amp you are using?

 

Edit: Max plate voltage for the EL34 is 800v, so 450v with a bias of 35ma is not stressing it.

https://amptubes.com.au/wp-content/uploads/2016/05/svetlana_el34_specificationsheet.pdf

Edited by muon*
  • Like 1
  • Love 1
  • Thanks 1
Link to post
Share on other sites
13 hours ago, muon* said:

My custom amp has 450v B+ and is designed for EL34's, and yeah, biased at 35ma.

 

Not sure what the worry is for EL34's in the amp you are using?

 

Edit: Max plate voltage for the EL34 is 800v, so 450v with a bias of 35ma is not stressing it.

https://amptubes.com.au/wp-content/uploads/2016/05/svetlana_el34_specificationsheet.pdf

@muon* thanks for the info . I heard that el34 requires lower bias voltage (around -35) where kt88 is at around -55 , i have not tried yet , but might try it one day on the x7

Link to post
Share on other sites
14 hours ago, Relaxasaurus said:

Thanks a ton for your impressions. A month later, which do you prefer?

if compare apples to apples 

 

i.e x7 running stock tubes and kt88 and the r8 running stock tubes and kt88 , then I'd choose the x7 , as I prefer that it has a darker background(noise floor is low) , better transparency ,slightly more holographic and also the vu meters are sexy and not to mention the built is more luxury.

 

 

 

  • Like 1
  • Thanks 1
Link to post
Share on other sites
26 minutes ago, demoiree said:

@muon* thanks for the info . I heard that el34 requires lower bias voltage (around -35) where kt88 is at around -55 , i have not tried yet , but might try it one day on the x7

Yeah, just lower the bias after pulling the KT88's and set it at 30ma to 35ma for the El34 you try in there when fired back up.

 

Will be fine.

  • Like 1
  • Thanks 1
Link to post
Share on other sites

Please see below for EL34 and KT88 bias settings for a fixed plate voltage of 450v operating within a normal region. The 55mA bias setting for the KT88 will be in the cold region. I wouldn't be at all surprised if the EL34 sounds better as it's operating within its normal region.

 

Screenshot_20201116-185719_FTBC Lite.jpg

Screenshot_20201116-185811_FTBC Lite.jpg

Edited by xlr8or
  • Like 1
  • Thanks 2
Link to post
Share on other sites
  • 2 weeks later...

Well, after doing some research and looking at my needs, I took the plung and purchased a Muzishare X7 largely by reading multiple web postings and the above comments.  I was also pondering the Willsenton R8 because of it's versatility with different tube combinations, but the end of the day, I went with Muzishare X7.   I am a neophyte when it comes to tubes, but I know what I like.  Kids are leaving the nest and I'd like to keep my wife, so $5-10K was not in the cards.  I find the Chinese are being very aggressive with their electronics building a name for themselves vs the big boys.  Competitive pricing is a win-win for the consumer as long as it performs as advertised.  All I can say is I am extremely pleased with my purchase. 

 

I purchased from Hifi Exquis and received an email that they were "out of stock" three days into the purchase but would be getting more over the weekend.  By Monday/Tuesday, I had a tracking number from DHL.  I live in the USA, so I wasn't sure how this was all going to play out.  I would recommend to anyone to make a profile on the shipping company website.  They will give you as many updates as you want...lol.  Anyway, the package arrived two days early.  I wasn't sure if there was going to be an upcharge from the shipping company, but there wasn't.

 

The amplifier itself is extremely well packaged.  Box in a box with the plastic foam keeping anything from moving.  I was missing a warranty card, but Hifi Exquis said they keep track of my purchased date for the warranty.  Hook up was easy peasy...  I did try to hook up my Empire 598III Troubador through my Budgie pre-amp, but absolutely hated what I heard coming out of my DCM TimeWindow 7 speakers.  So, I went with the Muzishare X7 pre-amp setting and Wow, I was happy guy.  I do run the Muzishare in the Ultralinear settings. as the DCM TimeWindow 7 are a 4 Ohms speaker.  I did decide to run these through my DCM Sub-712 as I always read about complaints on not enough bass and this sub has a "pass-through" feature.  I just control how much bass I want through a dial.

 

Well, two weeks in, and I like it more and more as the stock tubes burn in.  The signal tubes are either rebranded Slovakia JJs or something else as they now have the Muzishare label on them.  My plan is to swap them out after a couple of years (as I said, I like my wife).  I'm thinking either the new Gold Lions or Telefunken.  Of course, I would always like to find some NOS in the wild  at a reasonable price and play around if I get lucky.  My musical tastes are all genre, but I like my jazz, blues and swing as I get older.

 

Thanks to all that give their opinions.  I've always felt, if you read enough, common themes emerge and then you just have to "take the plunge!"

 

Dundee

 

 

 

 

20201130_114002.jpg

20201130_114337.jpg

  • Like 3
  • Love 1
  • Thanks 1
Link to post
Share on other sites
2 hours ago, Major_Dundee said:

Well, after doing some research and looking at my needs, I took the plung and purchased a Muzishare X7 largely by reading multiple web postings and the above comments.  I was also pondering the Willsenton R8 because of it's versatility with different tube combinations, but the end of the day, I went with Muzishare X7.   I am a neophyte when it comes to tubes, but I know what I like.  Kids are leaving the nest and I'd like to keep my wife, so $5-10K was not in the cards.  I find the Chinese are being very aggressive with their electronics building a name for themselves vs the big boys.  Competitive pricing is a win-win for the consumer as long as it performs as advertised.  All I can say is I am extremely pleased with my purchase. 

 

I purchased from Hifi Exquis and received an email that they were "out of stock" three days into the purchase but would be getting more over the weekend.  By Monday/Tuesday, I had a tracking number from DHL.  I live in the USA, so I wasn't sure how this was all going to play out.  I would recommend to anyone to make a profile on the shipping company website.  They will give you as many updates as you want...lol.  Anyway, the package arrived two days early.  I wasn't sure if there was going to be an upcharge from the shipping company, but there wasn't.

 

The amplifier itself is extremely well packaged.  Box in a box with the plastic foam keeping anything from moving.  I was missing a warranty card, but Hifi Exquis said they keep track of my purchased date for the warranty.  Hook up was easy peasy...  I did try to hook up my Empire 598III Troubador through my Budgie pre-amp, but absolutely hated what I heard coming out of my DCM TimeWindow 7 speakers.  So, I went with the Muzishare X7 pre-amp setting and Wow, I was happy guy.  I do run the Muzishare in the Ultralinear settings. as the DCM TimeWindow 7 are a 4 Ohms speaker.  I did decide to run these through my DCM Sub-712 as I always read about complaints on not enough bass and this sub has a "pass-through" feature.  I just control how much bass I want through a dial.

 

Well, two weeks in, and I like it more and more as the stock tubes burn in.  The signal tubes are either rebranded Slovakia JJs or something else as they now have the Muzishare label on them.  My plan is to swap them out after a couple of years (as I said, I like my wife).  I'm thinking either the new Gold Lions or Telefunken.  Of course, I would always like to find some NOS in the wild  at a reasonable price and play around if I get lucky.  My musical tastes are all genre, but I like my jazz, blues and swing as I get older.

 

Thanks to all that give their opinions.  I've always felt, if you read enough, common themes emerge and then you just have to "take the plunge!"

 

Dundee

 

 

 

 

20201130_114002.jpg

20201130_114337.jpg

 

I did the same as you and settled on the X7 over the Willsenton based on the comments from others above, and it's slimmer profile depth-wise as this is going on a TV stand. The X7 is on Amazon in the US with an easier return policy, plus you get 5% back if you use their CC so I went that route.

 

I love the amp but ended up purchasing some KT88 Gold Lions, a Mullard 12ax7, and had some previous 12au7 NOS Sylvanias around. Waiting for the rest of the tubes to arrive as I'm not completely satisfied with the stock tubes, but still happy overall.

 

Of course as soon as we get our X7's Thomas & Stereo releases his review of the Doge 10 for about the same price and now I'm *very* interested in that as well. Damn this hobby 😂 😭

  • Like 1
  • Haha 1
Link to post
Share on other sites

I just saw the review of the Doge 10 and was also intrigued.  BUT,  at the end of the day, I think we can all be chasing that unicorn of perfection.  Tube rolling will be my next adventure and I look forward to any combo success stories we can all share with this amp.  I am curious if the  signal JJ tubes were just rebranded with the Muzishare label in my amp or if they are using a different manufacturer.  I just would like to avoid putting the same tube in as the stock.

 

 

20201130_114510.jpg

20201130_114519.jpg

  • Like 3
  • Love 1
Link to post
Share on other sites

True! It's a never ending journey it seems, not really in a bad way. Pardon the dust but currently breaking in the Gold Lions:

 

PXL_20201203_134520277.thumb.jpg.e0d43e873599ad9f711cc859bfbdedd1.jpg

 

I dig the look of the Gold Lions branding  On the stock Muzishare KT88 tubes, I don't think they're exactly JJ's. 

 

PXL_20201203_134129809.thumb.jpg.c4821f58962d4be070f609b4f6bb817e.jpg

 

jjtube2.jpg.6ba06138a3c25d6c7f17562ee1f09f7f.jpg

Notice the JJ's have round circles in their plates while the Muzi's do not. More clearance after the bottom spacers too, though spacer sizes are similar. The Gold Lions definitely have beefier internals:

 

PXL_20201203_134349773.thumb.jpg.823637b8f38653a3486833bfad8ac560.jpg

 

Another note is the stock Muzishare 12au7's seem a bit cheaply made. Not sure how much this matters but the spacers are very slanted compared to 3 other brands of the same tube I have here.

 

PXL_20201203_134718069.thumb.jpg.825be1e22b810e9b7968510b6650de8b.jpg

  • Like 1
  • Thanks 1
Link to post
Share on other sites

My brother-in-law just went through his stash of tubes and had some 5814 by United and RCA.  I have an old Eico 666 tube tester I that have to try to figure out how to calibrate. He also had some 5751 that I may try. The literature says that tube has a lower gain.  Hope I don't blow anything up...lol

Link to post
Share on other sites
3 hours ago, Major_Dundee said:

My brother-in-law just went through his stash of tubes and had some 5814 by United and RCA.  I have an old Eico 666 tube tester I that have to try to figure out how to calibrate. He also had some 5751 that I may try. The literature says that tube has a lower gain.  Hope I don't blow anything up...lol

 

You should be fine with both tube substitutes. The 5814 for the 12AU7 will draw in a little more heater current. Also, it will sound more warm in tonal character. The 5751 for the 12AX7 will also draw in a little more heater current and drop the mu (gain) from 100 to 70. Its tonal character will be more clinical sounding. Both tube substitutes will supplement each other nicely in balancing out the overall sound. 👍👍👍

Edited by xlr8or
  • Like 1
  • Thanks 1
Link to post
Share on other sites
  • Recently Browsing   0 members

    No registered users viewing this page.




×
×
  • Create New...