Acoustat Answer Man is here

True, but I wouldn't think either my Threshold or Aragon gives up much to that Classe. Could you really get some pretty good volume from Spectra 22's with 45 wpc? I have a Pass First Watt F5 clone and would be surprised as hell if that thing could manhandle the Acoustats. I just don't see it happening.

Please try it you may be surprised, the Classe DR3- VHC was with the 81db Acoustat 1+1 for 10 years and 3 years with the 84db Acoustat 2+2 but i do not listend very loud and i don't listend to rock music.
 
^^^

Well if this is now coming down to "it takes big current production to wake up the Spectras" then how much current did the TNT 200 produce? According to many Spectra owners who used that amp it was the one to have.

If high levels of output current production are required to wake these speakers up then the XL-600 should show this. The XL-600 is rated for continuous stereo operation into a 1 ohm load and bridged into a 4 ohm load. None of the Transnova's (TNT-200 or Later 95XX series) are capable of continuous operation into this low of an impedance. I realize that there are many other factors to consider, but if we are looking purely at the ability to drive a low impedance load with quality power then the XL-600 will show this. Of course the previously mentioned Aragon and Threshold amps should have been capable as well. I guess we will see (hear) for ourselves tomorrow...
 
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I have a Parasound Classic 2250 that has a 2 ohm speaker setting - drove the Acoustats perfectly as well. Its for sale in the Swap meet too...I prefer my ICEPower and Krell clone on the Acoustats, and all other speakers I have...slightly ...over the Parasound.

Also a great amp for all ESLs is the Sanders ESL and his Magtec Amp. Thoe are incredible amps for planars and ribbons too!
 
Well, Chamberman (Kevin) and I didn't ever get around to listening to his XL-600 with my Spectra 22's because our initial listening session with the tube amp revealed some panel vibration in the bass panel of one speaker which we determined was caused by a loose area of mylar. So I whipped out the heat gun hoping I could retension the membrane but instead proceeded to burn a hole right through it. I know....brilliant.

So, I need to replace one bass panel in my Spectra 22's and need to know if the 9" three wire panels from the Monitor 3 are interchangeable as I see the dimensions are exactly the same (9" x 45 5/8" x 1 5/16").

Thanks,
Michael
 
Well, Chamberman (Kevin) and I didn't ever get around to listening to his XL-600 with my Spectra 22's because our initial listening session with the tube amp revealed some panel vibration in the bass panel of one speaker which we determined was caused by a loose area of mylar. So I whipped out the heat gun hoping I could retension the membrane but instead proceeded to burn a hole right through it. I know....brilliant.

So, I need to replace one bass panel in my Spectra 22's and need to know if the 9" three wire panels from the Monitor 3 are interchangeable as I see the dimensions are exactly the same (9" x 45 5/8" x 1 5/16").

Thanks,
Michael

Be careful Michael the panels from a monitor 3 are not Spectra panels they are 9x45 but regular panels NOT Spectra. André
 
Dear all
I wake up and read the bad new... This one I ve he never done.
Andre is right the spectra and standard pannels are difference. But the transformation from one to the other is possible, easy and even reversible. That the good new of the day !
The spectra pannels are physically similar to the standard ones. The difference is that the stator is electicaly separated in two sections in the spectras. You only need a pair of nail scissors, a small weld iron and and 2 meters of HV wire from the broken panel

I go the work and will send photos to you later tonight.
Mathieu.
 
Weld the heads ! Connect together with a fine copper wire top and bottom the connections of each pannel. This is an old and basic (and cheap) modification, one of the most efficient. Takes time, about 6 hour/pannel.
I can send photos if you wish......Yes post Photos ...thanks


Well this is one of the best mod i ever done to the Acoustat panels....ezey 3db more output...
But........There always a But...right!
When you do this mod an you drive the panels hard....you can get flash over...It can short the transfourmer secdarys!...
I use hot glue to fill the gap cover the wire....But it can still happen....
Now with the spectra....you have panels with 4ea wire feeding one panel.... more care must be taken...when Connecting together top and bottom....because its 4 inputs on the spectra.....not two like the older two wire panels............... i have spectra 3s....i well not do this mod to my spectra panels....But i have been run my spectra 3s...with the panels setup like a two wire panels
An runing the 2123 on the fullrang taps only

Good luck
 
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Weld the heads ! Connect together with a fine copper wire top and bottom the connections of each pannel. This is an old and basic (and cheap) modification, one of the most efficient. Takes time, about 6 hour/pannel.
I can send photos if you wish......Yes post Photos ...thanks


Well this is one of the best mod i ever done to the Acoustat panels....ezey 3db more output...
But........There always a But...right!
When you do this mod an you drive the panels hard....you can get flash over...It can short the transfourmer secdarys!...
I use hot glue to fill the gap cover the wire....But it can still happen....
Now with the spectra....you have panels with 4ea wire feeding one panel.... more care must be taken...when Connecting together top and bottom....because its 4 inputs on the spectra.....not two like the older two wire panels............... i have spectra 3s....i well not do this mod to my spectra panels....But i have been run my spectra 3s...with the panels setup like a two wire panels
An runing the 2123 on the fullrang taps only

Good luck

Both bottom & top this is what it looks like YES my 1+1s are done.
Acoustat_Panel_03.jpg
 
Dear all
I wake up and read the bad new... This one I ve he never done.
Andre is right the spectra and standard pannels are difference. But the transformation from one to the other is possible, easy and even reversible. That the good new of the day !
The spectra pannels are physically similar to the standard ones. The difference is that the stator is electicaly separated in two sections in the spectras. You only need a pair of nail scissors, a small weld iron and and 2 meters of HV wire from the broken panel

I go the work and will send photos to you later tonight.
Mathieu.

Yes it's easy WHEN you know what you are doing not for ME i leave this work for our friend Jocelyn he loves playing with this stuff ME all i can do is LISTEND & TALK that's it.:)
 
Thanks Mr Acoustat.....This is one of the ways your geting great output out of your 1+1s....I have found it doubbels the output almost...

But for me the 1+1 have a better sound an way more output if the two panels were stup side by side like the M2s.... but were but flat... not at the 30% angel.....An then Go with the 3ea 9" Acoustats Panels Flat for me Give the Best of All....Big image vary Stabel. an big bass output...an all the output i need..But unlike the 1+1 you can move your head an not get image shift...
That happens when to get the 1+1s 12-15' apart like my room alowes...
Als never let it said...if the ends are wire to gather..
These panels sound way better...becase the wire... no long have to be driven...thay just give a biger output like logans....
I would like to hear a pr of the Big SoundLabs with the wire ends put togather like this...with the 3db more output.... may save them an give what thay cant do today as far as output......

But all just ones Mans finding......

Long live Acoustats
 
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Thanks Mr Acoustat.....This is one of the ways your geting great output out of your 1+1s....I have found it doubbels the output almost...

But for me the 1+1 have a better sound an way more output if the two panels were stup side by side like the M2s.... but were but flat... not at the 30% angel.....An then Go with the 3ea 9" Acoustats Panels Flat for me Give the Best of All....Big image vary Stabel. an big bass output...an all the output i need..But unlike the 1+1 you can move your head an not get image shift...
That happens when to get the 1+1s 12-15' apart like my room alowes...
Als never let it said...if the ends are wire to gather..
These panels sound way better...becase the wire... no long have to be driven...thay just give a biger output like logans....
I would like to hear a pr of the Big SoundLabs with the wire ends put togather like this...with the 3db more output.... may save them an give what thay cant do today as far as output......

But all just ones Mans finding......

Long live Acoustats

Thank you for the information Tyu i have owned Acoustats for 30 years Spectra 22s & 33s - 2+2s - and finaly i am with my third and final pair of 1+1s i love ALL Acoustats BUT the double stacked models are in a class by themselves 1+1 - 2+2 - Spectra 44 & 4400 - model 6 - Spectra 66 & 6600 - and finaly the model 8 - i have heard them ALL and for me nothing and i do mean nothing comes close to my friends DIY Acoustat Spectra 8800s they are unique and breathtaking.41x102x12 - 800 pounds of pleasure.

Acoustat_Spectra_8800_101.JPG
 
I think the good news in all of this is that I think this is the culprit for the break-up issues Michael was having. As I was driving home it dawned on me why the tube amp seemed to do a better job than the solid state amps. The low end is much more laid back on tube amps and the low frequencies (60hz and under) were what was causing the fluttering sounds. Funny that it wasn't really noticeable from the listening position. You had to be up by the panel and have the low freq's playing loudly to hear it, but it was quite noticeable when you approached the panel.

Putting the tube amp on the ailing panel was a bit of a Band-Aid lowering bass output to allow slightly higher SPL's. I would be surprised if the Threshold and Aragon amps do not sound significantly better at higher SPL's once the panel is replaced.

Also, at the lower SPL's the panels sounded fantastic. I really want to hear them when they are working 100%...
 
I think the good news in all of this is that I think this is the culprit for the break-up issues Michael was having. As I was driving home it dawned on me why the tube amp seemed to do a better job than the solid state amps. The low end is much more laid back on tube amps and the low frequencies (60hz and under) were what was causing the fluttering sounds. Funny that it wasn't really noticeable from the listening position. You had to be up by the panel and have the low freq's playing loudly to hear it, but it was quite noticeable when you approached the panel.

Putting the tube amp on the ailing panel was a bit of a Band-Aid lowering bass output to allow slightly higher SPL's. I would be surprised if the Threshold and Aragon amps do not sound significantly better at higher SPL's once the panel is replaced.

Also, at the lower SPL's the panels sounded fantastic. I really want to hear them when they are working 100%...

Dollar for dollar NOTHING plays better than Acoustats and i do mean nothing today they no longer exist except on the used market BUT they are replaced by another GREAT value in audio Magnepan long life to panels.

An externally hosted image should be here but it was not working when we last tested it.