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Monitor amp (which one)

Got a brand new set of JBL 4410As,and about 500 bucks for an amp.
Any ides on an amp to give me that clean,quiet,transparant,true power to push the JBLs

Comments

Pro Audio Guest Thu, 09/07/2006 - 22:40
Michael Fossenkemper wrote: I don't think a 2B would be umph enough. 4B would be the way to go. They're out there, just keep hunting. They also have like a 20 year warranty.
Why did I know you were gonna say that Mike?
I saw one go on e-bay about 500,plus s&h.
My main problem is the amount of room,the room I plan on using for mastering isnt but,15ft wide,and about 30ft long.

Pro Audio Guest Thu, 09/07/2006 - 22:45
Massive Mastering wrote: I actually *have* a 4B that I'm selling... Out of warranty, but... I mean, it's a Bryston for cryin' out loud... Did anyone's ever actually need repair? :lol:
John,upon searching for reviews on the 2B,I stumbled on a review (for the life of me cant remember which one) where you used a 2B and praised the amount of dbs it was able to produce,do you happen to remember? :shock:

Pro Audio Guest Thu, 09/07/2006 - 23:03
Massive Mastering wrote: I believe I did... Can't remember where / for who...
Niether can I,but in the review,you mentioned having to use it as a back up for some reason or other,and was impressed by it.
I know that youre selling yours,but I have to keep in mind,that I dont have a nice "roomy" mastering room,and Im not pushing the big and bad ass Nautilus 803s (like someone I know :? )
THe JBL 4410As arent that big,but needless to say,it sometimes always happens to me that I end up with not enough.
I see about doing a search and see if I can find that thread.

Cucco Mon, 09/11/2006 - 13:10
Zilla wrote: [quote=eddies880]HOw about a Bryston 3b?
I have not listened to them, so I can't speak from experience. 150W per side is kind of low. Would rather have 200-300W, personally.
Really?? :shock:

Even with modestly sensitive speakers (say, 86dB/wm), you should be capable of sustained levels of 108.5 dB and, knowing Bryston's headroom capabilities, peaks of 111 dB for a good 50 ms or more. That's awfully loud.

I mean, I like more wattage too, but....150 is pretty nice for all but the biggest and most power hungry speakers.

Zilla Mon, 09/11/2006 - 14:19
Its not about loud. Its about control. Explained loosely: the more power an amp has, the more muscle it has to firmly control the movement of the speaker. Therefore less distortion.

I remember my first experience with amp overkill. I walked into a studio I was to work at and heard some NS-10's putting out some shockingly decent audio quality. I asked what they had done to the NS-10s. They replied "nothing". The reason was that each speaker had 500W behind it! Not for increase SPL, but for more accurate reproduction.

Cucco Mon, 09/11/2006 - 15:04
Zilla wrote: Its not about loud. Its about control. Explained loosely: the more power an amp has, the more muscle it has to firmly control the movement of the speaker. Therefore less distortion.

I remember my first experience with amp overkill. I walked into a studio I was to work at and heard some NS-10's putting out some shockingly decent audio quality. I asked what they had done to the NS-10s. They replied "nothing". The reason was that each speaker had 500W behind it! Not for increase SPL, but for more accurate reproduction.

That's making an interesting assertion - that two identical amplifiers with equal design but unequal capacity will put out completely different sounds with an equal amount of current flowing from the outputs.

(In other words - the Bryston 3B and 4B will sound different even if both amplifiers are putting out the equivelant of 50 watts...)

I understand the issue with headroom. Are you suggesting that an amplifier performing at 80% capacity will perform different than one performing at 60% capacity all other things being equal? I'm sure there is some, but what is the science behind that?

J.

Zilla Mon, 09/11/2006 - 15:36
Let's try this rough example...

A signal representing a loud kick drum hit is fed to a power amp. The amp responds by launching the speaker forward. As the initial positive half of the transient comes to peak and turns negative, so should the motion of the speaker. Exactly. The difficulty is that the forward moving speaker has inertia. Before the speaker can follow the negative signal and move inward, the amp must first brake the forward motion of the speaker. This is a power requirement that is not represented in the signal or expected reproduced acoustic power. The more spare power an amp has, the more firmly the amp will control speaker movement and avoid overshoots.
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