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Discussion Starter #1
So, what's out there in terms of quality 1000+ Watt amplifiers? The higher the Watts, the more useful the information will be to me...


So far, I have been checking out the Bryston 28B SST which is around 1300 Watts (though it is advertised as 1000 Watts). I wouldn't mind even more power though... My speakers have 86 dB sensitivity and I would like to be able to get 110 dB peaks at least (I would prefer to get 115 dB peaks at listening position, but I know that likely isn't going to be realistic in a passive speaker setup...). The speakers are around 13' from my listening position so that takes some dB off whatever I get from the amps as well.


Thanks.
 

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Pass Labs X1000.5 Monoblocks?



Im pretty sure Ive read that Pass can really warm up a room if you live in hotter climates, or in a smaller room.
 

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Mackie FR 2500 (575x2)


I mention this, because even though it's below 1000 watts, it hardly seems worth paying an arm and a leg for three more dB.
 

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Quote:
Originally Posted by MFLUGSTA /forum/post/14255795


Boulder 2050.

Forgot about this one impressive.

1000 watts at 8,4,2 ohm

peak power 2000 watts at 4 ohm

4000 watts at 2 ohm
 

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Quote:
Originally Posted by QueueCumber /forum/post/14255601


My speakers have 86 dB sensitivity and I would like to be able to get 110 dB peaks at least (I would prefer to get 115 dB peaks at listening position

You've obviously done the math:


250W will get you 110dBSPL at 1m with a single speaker in free field; 800W will get 115dBSPL.


1000W/ch will get you 110dBSPL @ 13ft with two speakers mounted near a wall; it would take over 3000W/ch to get 115dBSPL.



It seems to me that you might be better off getting more efficient speakers!


My pair of 98dB LS/4 monitors can generate 113.8dBSPL (continuous pink noise) @ 13ft with only 150W per side !!
And that's with 3.7dB of headroom!!
 

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Quote:
Originally Posted by oztech /forum/post/14256193


Or move the couch closer say 8ft.

LOL
 

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Discussion Starter #12

Quote:
Originally Posted by MichaelJHuman /forum/post/14255829


Mackie FR 2500 (575x2)


I mention this, because even though it's below 1000 watts, it hardly seems worth paying an arm and a leg for three more dB.

Yeah, I'm just doing research ATM. I don't peak past 100 or much over 90 at my normal listening levels.


Those Boulder amps look sweet though, but that is quite a price tag... Same with the Pass Labs. I would get one dB less gain with the 28B SST for almost half the price.
 

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Quote:
Originally Posted by QueueCumber /forum/post/14256260

Revel Salon2

I couldn't locate any power handling specs. Do you know what they are?
 

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Discussion Starter #14

Quote:
Originally Posted by cavu /forum/post/14256153


You've obviously done the math:

Yeah, I currently get ~103 dB total when I subtract the loss of SPL per the inverse square law as well as adding back the extra dBs from the additional speaker. The Brystons would give me an additional 3 dB most likely (per their website info).


When I consider all 7 speakers, I am in decent shape, but, except for the front three speakers, most of the speakers usually won't be adding as much to the sound since in movies/concerts the emphasis is usually placed on the front three channels.


Besides which, I listen to a lot of two channel stereo material. So perhaps two extra strong amps on the front left and right speakers might be the best approach... Though at this point it is nothing more than a thought and nowhere near an impulse.
 

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Quite a few of the Abbey Road studios use one of the following (significantly stand out as used a lot).

Classe, Bryston, Chord.

I feel this is pretty significant as this is not from any marketing brochure but actual studio equipment details.

So from these I guess you have:

Classe Omega Mono for 8 then 4 then 2: 1x500 1x1000 1x2000

The Bryston you know.

Chord Electronics SPM6000 for 8 then 4 then 2: 1x750 1x1500 1x3000

Regarding Chord Electronics, I am not bothering to show the 14000 as it is stupidly priced and there was a watts issue with the one tested at Stereophile.

Now it could had been a faulty unit or some other issue.


A seperate one to these that consistently has met its spec and gone beyond is Musical Fidelity.

Either KW750 2 channel power amp or 750k Supercharger mono.

Stereophile measurement for KW750 for 8 then 4 then 2: : 2x750 2x1010 1x1350


Cheers

DT
 

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Discussion Starter #16

Quote:
Originally Posted by cavu /forum/post/14256332


I couldn't locate any power handling specs. Do you know what they are?

Nope, I don't. I'm not looking to play continuously at those levels though, just to be able to hit transient peaks that high. I'll try to e-mail them for an answer on that.
 

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Quote:
Originally Posted by QueueCumber /forum/post/14256383


I'm not looking to play continuously at those levels though, just to be able to hit transient peaks that high.

Even "transient peaks" are part of a power handling spec.
 

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Quote:
Originally Posted by QueueCumber /forum/post/14256535


Isn't "power handling" a broad term that includes peak and continuous power handling...?

Actually, yes, but "Power Handling" is a group of parameters, some of which are often not disclosed.


My speakers, for instance, are spec'd as maximum output of 121dbSPL at 150w (long term pink noise) but have a recommended amplifier power up to 350w from which one can infer an additional 3.7dB transient peak headroom capability.
 
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