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1 hour ago, Mobe1969 said:

Do you sell units then if you are a repairer?

No. My background is electronics and I repaired a couple of amps for a guy years ago and then got the rest of the business word of mouth. Became not worthwhile some years back so I stopped.

 

1 hour ago, Mobe1969 said:

Would you be able to point me in the right direction for how to remove the SA1000 low frequency cutoff filter?

Only if you find me a schematic or service manual.

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And yes they are endgame You will never have to update or upgrade from them Buy once and enjoy !! If in Melbourne I'm happy to demo for you ?!

QA3004 for the Crowson. I also have QA4004s for the subs. All have fan mods as they're Hoovers otherwise. I got them all cheap from a guy I know secondhand. The 4's were 5yo but had spent their l

If you want a behringer amp, you can have mine if you arrange pick up. I was just getting too much induced noise when using it with the minidsp. I've done the fan swap too so it is a quiet amp.  

2 hours ago, A9X said:

No. My background is electronics and I repaired a couple of amps for a guy years ago and then got the rest of the business word of mouth. Became not worthwhile some years back so I stopped.

 

Only if you find me a schematic or service manual.

No worries. I thought from what you were saying you knew how.

 

Edit: looking at the manual, the SA1000 might be of. That 18hz filter is controlled by a switch on the back.

 

"Subsonic Filter
Selects a subsonic filter with -3dB @ 18Hz, Q=.8. Allows the 
user to remove the subsonic information from the signal and 
tighten the low end response of some subwoofer systems"

Edited by Mobe1969
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5 hours ago, brabs said:

It funny you say that, I have one at home collecting dust. Would need a mod though, as it has internal filter at 18hz.

BTW, this is from the manual on the SA1000. It sounds like it might fit the bill. It has a bypass. The bass boost curve is interesting but I guess not needed.

_20190912_193348.JPG

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4 minutes ago, Mobe1969 said:

BTW, this is from the manual on the SA1000. It sounds like it might fit the bill. It has a bypass. The bass boost curve is interesting but I guess not needed.

_20190912_193348.JPG

The hpsa1000 doesn’t have a switch like the sa1000. But Ive read even with the switch off it still rolls off sharply at 12hz. Which that graph you posted indicates.

the Crowson go flat to 1hz. So I think you really should aim for flattish to around 5hz at least.

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1 hour ago, Mobe1969 said:

No worries. I thought from what you were saying you knew how.

I do, but not knowing the parts values to change, I can't advise without a schematic because they can vary greatly between brands and even models within a brand. When I did the Quest I had a service manual on hand.

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1 hour ago, brabs said:

The hpsa1000 doesn’t have a switch like the sa1000. But Ive read even with the switch off it still rolls off sharply at 12hz. Which that graph you posted indicates.

the Crowson go flat to 1hz. So I think you really should aim for flattish to around 5hz at least.

Ok thanks. So I guess the Crowson really is the simplest option I can think of. The NX Behringers do have the roll off as well I believe.

 

So does you Rotel go flat to 1hz?

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15 minutes ago, Mobe1969 said:

Ok thanks. So I guess the Crowson really is the simplest option I can think of. The NX Behringers do have the roll off as well I believe.

 

So does you Rotel go flat to 1hz?

I Don’t know how to test that, all I know is using a tone generator, I do get movement at 1hz. It’s like a slow pulse, there is plenty at 5hz

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BTW, I found on AVSForum about the Behringer DSP series. You can set up a low shelf filter on them to flatten it to zero.

 

So it might still be a decent option.

 

Originally Posted by aron7awol View Post
Alright, as promised, for those who want to flatten the iNuke response to 4Hz (+/- 0.5dB!) and only down ~1dB at 3Hz, here's a filter: LS 10Hz Q0.5 4.4dB

 

My Croswon is en route (thanks for the Oceanic tip jeffpr). I just hadn't decided on an amp by the time I ordered it (the rep was about to leave for Cedia so I put it in).

 

I still am tossing up on the actual Crowson though. I guess the standby is useful but not a real problem - more that I have to remember to manually switch it off... On AVSForum people have said volume control really isn't an issue as you tend to set and leave it.

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38 minutes ago, Mobe1969 said:

BTW, I found on AVSForum about the Behringer DSP series. You can set up a low shelf filter on them to flatten it to zero.

 

So it might still be a decent option.

 

Originally Posted by aron7awol View Post
Alright, as promised, for those who want to flatten the iNuke response to 4Hz (+/- 0.5dB!) and only down ~1dB at 3Hz, here's a filter: LS 10Hz Q0.5 4.4dB

 

My Croswon is en route (thanks for the Oceanic tip jeffpr). I just hadn't decided on an amp by the time I ordered it (the rep was about to leave for Cedia so I put it in).

 

I still am tossing up on the actual Crowson though. I guess the standby is useful but not a real problem - more that I have to remember to manually switch it off... On AVSForum people have said volume control really isn't an issue as you tend to set and leave it.

When I was using the behringer, I had one of those free smart saver plugs that they were giving away to power it on and off, it had an IR Reciever on a long cable that would detect any remote ir ( for instance it would turn on when you turned anything else on) And you could set it to stay on for a set period of time ( I set mine to 3 hrs) then it would turn off.

you can have it if you like

 

edit: I know it has 2 outlets on it, it may even work as master and slave

Edited by brabs
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38 minutes ago, brabs said:

When I was using the behringer, I had one of those free smart saver plugs that they were giving away to power it on and off, it had an IR Reciever on a long cable that would detect any remote ir ( for instance it would turn on when you turned anything else on) And you could set it to stay on for a set period of time ( I set mine to 3 hrs) then it would turn off.

you can have it if you like

 

edit: I know it has 2 outlets on it, it may even work as master and slave

Nice. Yes someone on AVS mentioned using a smart power strip. To be honest I didn't even know that that was until after I saw it mentioned. I guess I've never felt the need for smart light bulbs to avoid having to use a switch when I enter and leave a room... LOL.

 

Thinking about it though, I have no issue powering it up manually. I may initially forget to turn it off! Once I get accustomed to it, it should not be an issue. Just a wee bit inconvenient - but laziness for me is a slippery slope!!! :)

 

I ended up just getting an NX3000D. I've got the RCA to XLR cables ordered as well as a recommended quiet fan (the Noctua NF-A8 PWM Premium 80mm). Given Aron7awols low shelf curve to compensate, that seems like a pretty simple option I can live with.

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Well, I got my Crowsons last weekend, and my Behringer arrived this morning, so I'll be setting it all up tomorrow!. I have a fan swap to do on the Behringer, plus I got to pick up some speaker cable connectors for the behringer from Jaycar (I didn't realize they didn't have standard speaker posts so didn't order them - I did get RCA to XLR cables, but missed the speaker connections...), and get it all installed and configured. I've got so much to do this weekend, projects and chore-wise...

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  • 3 weeks later...

Just an update. I'm into Bass Equalization (the BEQ thread at avs forum) and I was having issues with signal noise from the Behringer. Like a bad PSU. So it was injecting 10db of noise into the signal path with all devices grounded, and without grounding, 20db. And that is with the Behringer off, just connected to power. All on a Thor power board filter. So I ended up getting a Crowson amp. No noise. I don't know if I had a faulty PSU or what.

 

Also, I had both amps filtering at 40hz, and I'm getting a better effect from the Crowson. I think. Unmeasured, but I'm noticing more.

 

Just to clarify, if you aren't doing bass equalization, the Behringer is fine. The 20 db noise you can't hear. But, if you are equalizing part of the low end with a minidsp, even if not touching 50hz, the 50hz mains noise on the board, and you may hear it on your subwoofers.

Edited by Mobe1969
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BTW, I got mine direct from Oceanic Distribution. They were great, and easy to deal with. I don't know why no online AV stores here even sell crowsons. It is just idiotic. Try searching here for the gear. 

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  • 7 months later...
On 05/10/2019 at 4:36 PM, Mobe1969 said:

BTW, I got mine direct from Oceanic Distribution. They were great, and easy to deal with. I don't know why no online AV stores here even sell crowsons. It is just idiotic. Try searching here for the gear. 

Hey Mobe1969, curious how the setup is going. Was it worth the investment?

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Posted (edited)

Oh yeah. Especially if you discover BEQ (see the AVS forum). 

 

They are incredible and add a smooth seamless low end response. I used to think of my viewing experience pre home cinema and post. Then it was pre BEQ and post. Then I got the Crowsons, and it is pre and post Crowsons... Ever since I got them I've had to rewatch stuff id watched in the home cinema without them.. Some movies are just another thing altogether with it. Jack the Giant Killer was bowel loosening when the beanstalk sprouted for example... Even older stuff - like I'm in a Star Trek marathon at the moment, and BEQ and Crowsons has been an awesome enhancement to them.

 

They are a cheaper and more effective means of getting lower end without spending tens of thousands on subwoofers. Same with BEQ.

Edited by Mobe1969
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Thanks for the update, it is much appreciated. I always see Crowsons come up very highly recommended with the next step being dbox (which some don't prefer). I'm just not sure if around $3000 is the right amount to dedicated for my level of system but wanted feedback if the effect was worth it. I'm still running a Martin Logan Abyss (always like it as it responds to a lot more detail in tracks than some others subs I have seen) but this would be worth way more than that. Just wanted something for bit more extension and without annoying people.

Was thinking of an amplifier along the lines of Earthquake or Clark Synthesis (limited to lower frequencies). Some find the buttkickers a bit "unrefined".  Just cant seam to settle on any configuration. My 3.5 seater lounge with chaise is two parts so would probably need 1 in each section.

 

Sometimes a home theater setup can cause a lot of stress!

 

 

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...or do you think get just 1 crowson that i put under 2 legs (two at the back in middle are only 2-3 inches apart) and a Behringer amplifier? Its a fairly lightweight fabric lounge..

 

 

 

 

 

 

 

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Posted (edited)

If you want a behringer amp, you can have mine if you arrange pick up. I was just getting too much induced noise when using it with the minidsp. I've done the fan swap too so it is a quiet amp.

 

Yeah I definitely hear butkickers and earthquake are way more unrefined, from people who have tried all, but I've only used Crowsons and I have no complaints.

 

I've only gotten the two actuators under my seat the middle one. My wife doesn't care, and she still notices it. If you are doing it to impress more others, maybe get more... And when I've had others over they have noticed.

 

You are right on prior post though - it is a good way of getting the low end effect without the sound levels.

 

I'd definitely recommend BEQ too. Just watch the opening of First Man with and without it. Hoo boy... I think on the thread on AVS they have sample files for you to see the effect without the hardware investment.

 

A minidsp is so cheap in comparison. A couple of hundred.

 

I can't recommend Crowsons enough though.

Edited by Mobe1969
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Im also interested in getting some actuators . . . but just not sure how i would be able to set them up as i am already using all 7 pr-out channels to speakers and the 2 LFE channels are being used.  1 of them to my sub 1 and the other split to 2 smaller subs.

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I run 6 subs and 4 crowsons off the .2 sub outs from the preamp 

subs daisy chained and crowsons on other line😊

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