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My Soulution  501 power amps on the bottom shelf and the Soulution  520 Pre on the shelf above on the right hand side

John

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trusted my amplification with progression mono       

my bling amp. sounds amazing after being upgraded to S250 spec.      

Krell Evolution One monoblocks. 1.8 kW into two ohms but silkily smooth and detailed even at low listening levels.

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power amps ? no problem have a few hooked up and ready to go :D 

 

2ch musical fidelity m8 500S

 

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and obligatory nude shot for those so inclined :D 

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more channels ? no problem 

 

7 channels of aussie goodness in form of iron fist in velvet elektra glove

 

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ah nude shots , found ... this is actually of model prior I also own but they are still pretty similar underskin :) 

 

power supply is full height of the case. Massive heatsinks on either side for passive cooling, and overall runs relatively cool as result 

 

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nice big torroid (weighing 14kg I understand)  and top quality nichicon muse caps 

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On 10/11/2019 at 2:58 PM, andyr said:

 

 

Very interesting, Les.

 

Which drives your 1.7s better - the JC1 monoblocs ... or the ME850?

 

I recently heard an ME850 driving some 3.7s - and that was simply wonderful sound.  Could it be that JC1s would be even better???  :lol:

 

Andy

 

Andy,

 

As the owner of the ME850/ME25 and MG3.7i's in question, thanks for the comment. I have to admit I am still on a journey of discovery with the amps. I have had them for 18 years but, had them both serviced (new caps etc) and the 25 upgraded recently. Have been carefully and enjoyably listening to a range of familiar music recently as well as some new stuff (like the 45rpm vinyl we listened to) and continue to be staggered by the inner detail that is present. No complaints from me about the synergy of the ME amps and the Maggies. The soundstage is almost holographic. 

 

cheers, Malcolm 

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On 11/11/2019 at 8:34 AM, DRC said:

Krell Evolution One monoblocks. 1.8 kW into two ohms but silkily smooth and detailed even at low listening levels.

krell-EV2.jpg.89d49490b5a1ce24ab1bc6c322586d40.jpg

Pretty enough, but:

JC1 lab results. Class A up to 29W (where most listening would occur).
Power at clipping (about 1% THD):
586.5W into 8 ohms
1154W into 4 ohms
2255W into 2 ohms
4200W into 1 ohm

 

https://www.stereophile.com/content/parasound-halo-jc-1-monoblock-power-amplifier-measurements

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Yesterday, I finished a project which has been going on for a couple of months - that of changing from this:

 

 

1850269473_FrankenpanNewBases01.thumb.jpg.23d4f1c18b7bb63070fe3acae085fa71.jpg

 

 

I built the 'black box' 15 years ago, to house:

  • a 3-way active XO
  • 3x AKSA monoblocs
  • 4x power supplies.

 

To the new setup - which is this:

 

 

9189610_RehousedAmpsSetup.thumb.jpg.54e57c3c7a81e6ce8456e73db2510987.jpg

 

 

The smaller case houses an AKSA 100w 'Soraya' monobloc - with an upgraded CRCRC power supply.  This drives the bass panel (which is currently just resting against - not bolted to - its braced stand ... and not connected).

 

The larger case contains a NAKSA 80 (stereo) PCB - and an EI power transformer.  This drives the (3 ohm) mid panel and (2 ohm) ribbon.  A 3RU Modushop case was needed, due to the height of this power transformer - which gives a generous heatsink for the output devices.  :)

 

Here are pics of the fronts and backs of the amplifier cases:

 

1.  Soraya monoblocs

 

1136301111_RehousedSorayas-Front.thumb.JPG.31f84a63e6faf940dd7c6ec54521a161.JPG

 

2056667246_RehousedSorayas-Back.thumb.JPG.5f7bb7cac08a0607592c756c7e8ae338.JPG

 

 

2.  NAKSA 80 stereo amp

 

769119208_RehousedNAKSA80-Front.thumb.JPG.84a52bd9443e7514e6b323aea8864947.JPG

 

 

1280508913_RehousedNAKSA80-Back.thumb.JPG.62f8a73a83d62196250b8a9cc7f8709e.JPG

 

 

I'm keen to hear what the new PSes do to the sound of the bass panel amps - but, unfortunately, the tech who re-wired the panels didn't bother to connect up the new (foil) wire he used, to the solder pads which the previous round-wire had been soldered to (and which my spkr cables are connected to)!  :(  So I have to fix this problem before I can have a listen.  :(

 

Andy

 

Edited by andyr
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3 hours ago, andyr said:

Yesterday, I finished a project which has been going on for a couple of months - that of changing from this:

 

 

1850269473_FrankenpanNewBases01.thumb.jpg.23d4f1c18b7bb63070fe3acae085fa71.jpg

 

 

I built the 'black box' 15 years ago, to house:

  • a 3-way active XO
  • 3x AKSA monoblocs
  • 4x power supplies.

 

To the new setup - which is this:

 

 

9189610_RehousedAmpsSetup.thumb.jpg.54e57c3c7a81e6ce8456e73db2510987.jpg

 

 

The smaller case houses an AKSA 100w 'Soraya' monobloc - with an upgraded CRCRC power supply.  This drives the bass panel (which is currently just resting against - not bolted to - its braced stand ... and not connected).

 

The larger case contains a NAKSA 80 (stereo) PCB - and an EI power transformer.  This drives the (3 ohm) mid panel and (2 ohm) ribbon.  A 3RU Modushop case was needed, due to the height of this power transformer - which gives a generous heatsink for the output devices.  :)

 

Here are pics of the fronts and backs of the amplifier cases:

 

1.  Soraya monoblocs

 

1136301111_RehousedSorayas-Front.thumb.JPG.31f84a63e6faf940dd7c6ec54521a161.JPG

 

2056667246_RehousedSorayas-Back.thumb.JPG.5f7bb7cac08a0607592c756c7e8ae338.JPG

 

 

2.  NAKSA 80 stereo amp

 

769119208_RehousedNAKSA80-Front.thumb.JPG.84a52bd9443e7514e6b323aea8864947.JPG

 

 

1280508913_RehousedNAKSA80-Back.thumb.JPG.62f8a73a83d62196250b8a9cc7f8709e.JPG

 

 

I'm keen to hear what the new PSes do to the sound of the bass panel amps - but, unfortunately, the tech who re-wired the panels didn't bother to connect up the new (foil) wire he used, to the solder pads which the previous round-wire had been soldered to (and which my spkr cables are connected to)!  :(  So I have to fix this problem before I can have a listen.  :(

 

Andy

 

Absolutely extreme. I admire your dedication.

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31 minutes ago, mwhouston said:

Absolutely extreme. I admire your dedication.

 

Thank you, Mark!  :thumb:

 

The amps certainly have a bigger WAF factor than they did before.  :lol:  And I'm pleased to find that the NAKSA 80s show absolutely zero hum/hiss when I put my ear against either the mid panel or the ribbon.  Mind you, I did go the the extent of:

a.  putting a case divider between the power transformer / IEC inlet / fuse / power switch and the N80 PCB, and

b.  enclosing each pair of traffo secondary wires in an earthed shield (earthed to the case divider).

 

This involved quite a lot of extra hours of work - but the result is as I hoped it would be.  :)  See pic:

 

 

613098457_RehousedNAKSA80-Internals.thumb.JPG.7e2e3b4c27b155a17cb7f90dec882781.JPG

 

 

I've done the same thing with the 'Soraya' monoblocs - so can't wait to be able to hear them.

 

Andy

 

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7 hours ago, mwhouston said:

Have you listen to both Hughs amps as a full system and is there a fav? 

 

No sorry, I haven't, Mark.  The amps have always been in a fully active system.

 

Andy

 

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These Icon MB90 MK2’s that I recently purchased from another SNA member are stunning amplifiers in every way, they really need to be heard to be appreciated how good they are.

 

cheers Terry

 

 

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Edited by TerryO
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12 minutes ago, TerryO said:

These Icon MB90 MK2’s that I recently purchased from another SNA member are stunning amplifiers in every way, they really need to be heard to be appreciated how good they are.

 

cheers Terry

 

 

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9311CAF3-C140-42BB-A40F-14ADFF3E73A4.jpeg

5572CF29-AD87-47DF-9C67-FA28EACD379D.jpeg

Do look good with a retro feel. 

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Considering it is a 1994 build this great looking Sansui 907 Limited is one very nice sounding amplifier that easily drives my VA Concert Grands, at a recent gtg it didn’t embarrass it self against a trio of $20k plus amps.

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Edited by TerryO
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2 minutes ago, TerryO said:

Considering it is a 1994 build this gorgeous looking Sansui 907 Limited is one very nice sounding amp, at a recent gtg it didn’t embarrass it self against a trio of $20k plus amps.

 

 

 

 

 

Certainly it is a 1994 extreme Japanese luxury build. However the inherent circuit topology predates that build date by some margin. Looking through this great topic I'm reminded once again, that circuit design and the "never ending" quest to "lower distortion without compromise" continues......The 907 is as you know an integrated amp....==Show us Ya integrated amps??

 

Here's a  Sansui power amp.. Lets see who may be able to identify this one??

 

 

 

002.JPG

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16 minutes ago, The Fez said:

 

Looking through this great topic I'm reminded once again, that circuit design and the "never ending" quest to "lower distortion without compromise" continues.

 

 

The way see it, TF ... the "never ending quest to lower distortion " was a feature of Japanese amps of the 70s and 80s ... which resulted in amps with impressively low THD figures but a sterile sound (due to maximal levels of global NFB applied, in order to get to the low THD figures).  Nowadays, amp designers are interested in making an amp which performs well ... but also sounds good.  :)  (Note: I'm not including Class D amps in this - as it seems they all have extremely low distortion.  I have no idea whether they use global NFB to achieve this ... or not.)

 

Andy

 

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1 hour ago, andyr said:

 

The way see it, TF ... the "never ending quest to lower distortion " was a feature of Japanese amps of the 70s and 80s ... which resulted in amps with impressively low THD figures but a sterile sound (due to maximal levels of global NFB applied, in order to get to the low THD figures).  Nowadays, amp designers are interested in making an amp which performs well ... but also sounds good.  :)  (Note: I'm not including Class D amps in this - as it seems they all have extremely low distortion.  I have no idea whether they use global NFB to achieve this ... or not.)

 

Andy

 

This is what I called the bad old days of transistor power amps. Thank the god of audio they finally got better. 

 

And yes Class D relies on GNF to exist. 

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Denafrips Hyperion.

 

T2iVvHK.jpg

 

And the glorified on/off switch:

 

bVDgmYw.jpg

 

But because of the remote I can place the amp in an obscure/inaccessible location! I know the pictures doesn't do the amp justice, I'll take some better shots in the weekend, probably some internals shots as well!

 

Much thanks @Dacman

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On 12/11/2019 at 5:09 AM, Luc said:

Very Rare Onkyo M-510 Grand Integra Stereo Power Amplifier.

image.png.7ad268725a0c10cd20a1b887bc65df4c.png

 

Beautiful isn't it.

Under the bonnet pics are grainy but  you get the idea

image.png.35c43b1357220de4234476fb6b77bc25.png

 

image.png.0a3fcced661b01fa55e98ad9ce7e3b81.png

 

The member here who owns one has promised to never to leave me alone in the same room/house with it or lend it as he doesn't trust me to return it.

 

He's 100% right too. 😍😍

This is the mother of all VU meters!!!

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  • 2 weeks later...

Update from me! So I have 4x Hypex NC400 mono blocks, and 2x stereo NC400 for mid/high duties, mono blocks for bass drivers on my beloved VAF i93 MK2 signatures 

5FD16D2E-B111-4DC8-AE07-4D32BEA46385.jpeg

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Hi Guys, thought you may find some shots of my Transcendent Sound OTL Monos interesting. The circuits are slightly modified from the standard, and casework is all mine. They were completed about 10 years ago and still amaze me every time I turn them on. Cheers, Mark.

P1010046.JPG

P1010051.JPG

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5 minutes ago, Shark said:

Hi Guys, thought you may find some shots of my Transcendent Sound OTL Monos interesting. The circuits are slightly modified from the standard, and casework is all mine. They were completed about 10 years ago and still amaze me every time I turn them on. Cheers, Mark.

That is a veritable buttload of tubes. Very nice.

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13 hours ago, Shark said:

Hi Guys, thought you may find some shots of my Transcendent Sound OTL Monos interesting. The circuits are slightly modified from the standard, and casework is all mine. They were completed about 10 years ago and still amaze me every time I turn them on. Cheers, Mark.

P1010046.JPG

P1010051.JPG

Holy crap Batman. Amazing. My wallet just started quivering at the thought of a revalve.

Edited by Pops110
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1 hour ago, Shark said:

Hi Guys, thought you may find some shots of my Transcendent Sound OTL Monos interesting. The circuits are slightly modified from the standard, and casework is all mine. They were completed about 10 years ago and still amaze me every time I turn them on. Cheers, Mark.

P1010046.JPG

P1010051.JPG

Gorgeous deco casework, Shark. What material is it?

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On 03/12/2019 at 8:18 AM, Sinewave said:

Update from me! So I have 4x Hypex NC400 mono blocks, and 2x stereo NC400 for mid/high duties, mono blocks for bass drivers on my beloved VAF i93 MK2 signatures 

5FD16D2E-B111-4DC8-AE07-4D32BEA46385.jpeg

Beautiful symmetry!

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On 23/11/2019 at 11:58 PM, Willmax said:

No VU meters on this one, though the sheer musicality makes up for it in spades!

 

20191121_195919.thumb.jpg.0956b3f9da8836a062d839733a19ba7e.jpg

Signed on to your channel, Will – love it! I’ve been dubious about the merits of assessing sounds/products through youtube, but the difference among your different bits of gear is striking. The KWs sound pretty  special, too! Can’t;t help but feel the room/floor lets you down a bit though...

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On 17/11/2019 at 8:41 PM, The Fez said:

Here's a  Sansui power amp.. Lets see who may be able to identify this one??

 

 

 

002.JPG

 

1975 Sansui BA-1000 :)

 

V-FET amp, only sold in Japan

 

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10 hours ago, RankStranger said:

Gorgeous deco casework, Shark. What material is it?

Hi Rank Stranger, the Fascias are Acrylic, and the Transformer Top Plate is Billet Alloy as are the rounded corners.

 

Cheers, Mark.

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The Benchmark mono’s are gone and these Cyrus Mono X’s replaced them. 
 

D4845FD9-A34C-43E2-8644-F87641FF9FBC.jpeg.3a8def385c1f1369012c2cc5f5c2f6d1.jpeg

 

I’m happier than I thought I would be but they’ll be heading down to Sydders soon for some magic tweaks. They may be small but they’re not toys. They will be returning to me with a matching modded DAC XP+ to get the best out of them. 

Edited by Winno
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18 hours ago, TheOrb said:

Signed on to your channel, Will – love it! I’ve been dubious about the merits of assessing sounds/products through youtube, but the difference among your different bits of gear is striking. The KWs sound pretty  special, too! Can’t;t help but feel the room/floor lets you down a bit though...

Thanks for the sub' and your comments here, the room I have my HiFi setup at the moment, is a lot better than when I started out on this journey, I know it is far from being perfect or the ideal solution but it still provides me a great deal of enjoyment and that is important. Having said that,  I'm hoping to move on to a  much better arrangement in the near future, so fingers crossed!

 

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Finally using the Halcro again. 

It is for sale so this might not have the usual weight but it is a fantastic piece of gear

DSC03275.JPG

DSC03277.JPG

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DIY amps,

Aleph, J, Mini, ACA.

 

921538733_DSC05868e.jpg.1ea0e8d885c6c02c3ed3c4ce54818242.jpg

 

LM3886 dual mono 

87706608_DSC05201ed.jpg.e4f38dacbc869fce0a36d5d537338d5b.jpg

 

there is a LM1875 under my little work bench for testing things with.

 

SS in use 

Technics SE9060

Rotel RB1070

 

on the shelf

Adcom GFA555 series 1

Nad 2600 PE

Kenwood Basic M2A 

 

Tony

 

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