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Belles & Bryston 4B, gain adjust and 1 is it enough?


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Good Day,

 

Just bought a Bryston 4B 198? to put on my Belles.

 

Question n1, what would be the correct gain adjustment for the amps?

 

Question n2, is it to powerful for the Belles?

 

Question b3, I have ordered a type A crossover, will it improved the "finesse" of the sound?

 

Question n4, is preferable to have one stereo 4B or a pair of 4B in mono, one for each Belle?

 

I have search the forum, but didn't found info on gain adjust and Bryston Belles?

 

thanks for anyhelp

 

Best regards all!

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The Bryston 4B is a great sounding amp. My buddy has a pair of Forte II's and a pair of LaScalas and the 4B sounds fantastic. No worries of too much power for the Belles, I think they take like 800 watts peak and the 4B is nowhere near that. Should sound really good together and I see no need to go with an additional 4B, especially at the cost they usually draw.

 

 

Tim

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Let me know if you get a lot of gain noise from yours.  I am running the 2b lp and there is what seems to be quit a bit of gain noise hissing.  There are some articles on gain structure between components.  I believe like stated that one amp should be more than enough.  It might just take some fine tuning to get the gains set just right, but for now I would set to half and see where that gets you. 

 

What do you have for a pre amp?

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The Bryston 4B is a great sounding amp. My buddy has a pair of Forte II's and a pair of LaScalas and the 4B sounds fantastic. No worries of too much power for the Belles, I think they take like 800 watts peak and the 4B is nowhere near that. Should sound really good together and I see no need to go with an additional 4B, especially at the cost they usually draw.

 

 

Tim

 

I thought Belles had a maximum peak of 400 wts, 100 wts more or less continuous with normal program material (although I wouldn't push it).  No matter, though, they will produce 115 dB @ 63 watts in a 3,000 cu. ft. room, according to Don Keele (Dope from Hope, Vol 16, #1).  Keele probably had reference to about a 16 foot listening distance, because PWK characterized that as "normal listening position."

 

Tapajeurs, how big is your listening room?  How far away do you sit?  One stereo Bryston 4B is plenty.  The Belle, La Scala, and Klipschorn are among the worlds most efficient home speakers.  You may want a subwoofer, though, below about 60 Hz, perhaps a horn loaded one.  Put your Belles near a wall, or in a corner for maximum room gain.  If they are in a corner, you may want to put some absorbing material on the walls from where a line parallel with the front of the box, and pressed up against it, at midrange/tweeter height, will hit the side walls.  Two feet out from there ought to be enough,  Also put some at the first reflection points (mirror test), and a carpet where the tweeter sound will bounce off the floor.  Area rugs should be enough.  Don't over-damp.

 

If you get a lot of hiss, turn the gain down until it is tolerable.  A little hiss from near the speakers is normal, but it should all but disappear when you get far enough away.  In the old tube days, everyone tolerated a little hiss -- it demonstrated you had a tweeter.  Now, some young people think it is an indicator of an alien invasion.

Edited by garyrc
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Let me know if you get a lot of gain noise from yours.  I am running the 2b lp and there is what seems to be quit a bit of gain noise hissing.  There are some articles on gain structure between components.  I believe like stated that one amp should be more than enough.  It might just take some fine tuning to get the gains set just right, but for now I would set to half and see where that gets you. 

 

What do you have for a pre amp?

 

i don't have preamp exactly, i have an Emotiva DAC XDA-2, that have XLR and a numeric preamp sort of in there and have multiple entry for all my numeric needs.

 

For the record,

Soon, i will go with xlr aes digital in the weekend if amazon is quick to deliver the XDA-2 accept this pro digital connection. And by then, i will be all XLR in my hifi

 

For the noise:

 

As for a little noise, i hear one, but not much i put some "graphite"(no sure if it is spell correctly) to get rid of some RFI i have here.

 

Work ok, but i use for interconnect and speaker cable the canary microphone cable and do my own interconnect, this cable is for pro, and extra scheilded.

 

Also with the Bryston,

i had to change my USB cable, not enough scheild, to a better one, with the RFI  noise parasite cancelling.

 

All this seems to help or maybe it is snake oil?

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The Bryston 4B is a great sounding amp. My buddy has a pair of Forte II's and a pair of LaScalas and the 4B sounds fantastic. No worries of too much power for the Belles, I think they take like 800 watts peak and the 4B is nowhere near that. Should sound really good together and I see no need to go with an additional 4B, especially at the cost they usually draw.

 

 

Tim

 

I thought Belles had a maximum peak of 400 wts, 100 wts more or less continuous with normal program material (although I wouldn't push it).  No matter, though, they will produce 115 dB @ 63 watts in a 3,000 cu. ft. room, according to Don Keele (Dope from Hope, Vol 16, #1).  Keele probably had reference to about a 16 foot listening distance, because PWK characterized that as "normal listening position."

 

Tapajeurs, how big is your listening room?  How far away do you sit?  One stereo Bryston 4B is plenty.  The Belle, La Scala, and Klipschorn are among the worlds most efficient home speakers.  You may want a subwoofer, though, below about 60 Hz, perhaps a horn loaded one.  Put your Belles near a wall, or in a corner for maximum room gain.  If they are in a corner, you may want to put some absorbing material on the walls from where a line parallel with the front of the box, and pressed up against it, at midrange/tweeter height, will hit the side walls.  Two feet out from there ought to be enough,  Also put some at the first reflection points (mirror test), and a carpet where the tweeter sound will bounce off the floor.  Area rugs should be enough.  Don't over-damp.

 

If you get a lot of hiss, turn the gain down until it is tolerable.  A little hiss from near the speakers is normal, but it should all but disappear when you get far enough away.  In the old tube days, everyone tolerated a little hiss -- it demonstrated you had a tweeter.  Now, some young people think it is an indicator of an alien invasion.

Room is 15 to 18 feets deep and Belles put are up one feet on a mini wall of brick and volcanic rock with a back wall of brick back (8 high x 16 large).

 

A lot of concrete there, not me the old owner of my house like it that way.

 

As the mirror test good idea.

 

And What is a horn load sub?

 

Also i have decrease the gain, for a 1/4 and sound blooms, will experiment with it, since no danger for my Belles playing with that.

 

And i am a old, so the hiss, is already in my ear, from working in bad condition ;), but hum noise, not for me. But i take note for the hiss, because i do not want to put to much emphasis on the hiss thing (Waf won't appreciate it!)

 

Thanks all!

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Tapajeurs, the Emotiva XDA-2 is the preamp/DAC I am using as well. I run the amps via the XLR outs and a pair of powered subs via the RCA outs. This may work well for you too since the Belles don't really dig deep.

 

 

Tim

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Tapajeurs, the Emotiva XDA-2 is the preamp/DAC I am using as well. I run the amps via the XLR outs and a pair of powered subs via the RCA outs. This may work well for you too since the Belles don't really dig deep.

 

 

Tim

Glad to read that! :)

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