Bryston Launches BP-17³ Cubed Preamplifier

[James Tanner - Bryston]

Hi James,

NEW REVIEW on BP-17 and 4B Cubed !

“One of the actually best amplifiers on the market”

On German Online Magazine Fairaufio.de:

https://www.fairaudio.de/test/brysto...r-kombination/

Best regards
Edvard Potisk
AViTech, Dkfm.
Email: edvard.potisk@avitech.at
Web: www.avitech.at

[James Tanner - Bryston]

Full Stereophile review:

http://bryston.com/PDF/reviews/2018_...hile_BP_17.pdf

[ruffoc]

Nice review! Wondering what JA means by this quote in the measurements section

"This [volume] control had a rather aggressive action, its 12:00 position reducing the gain by 32dB from its maximum!"

[ruffoc]

So thinking about the quote above a bit more, does this mean that at 12 o'clock on the volume the gain will be 32db down from 0? Extrapolating does this mean that there is a lot of fine control from the 7 o'clock position to the 12 o'clock position? I listen at low to moderate spl and want a gentle gain taper to help fine tune the volume control.

[James Tanner - Bryston]

Originally Posted by ruffoc

So thinking about the quote above a bit more, does this mean that at 12 o'clock on the volume the gain will be 32db down from 0? Extrapolating does this mean that there is a lot of fine control from the 7 o'clock position to the 12 o'clock position? I listen at low to moderate spl and want a gentle gain taper to help fine tune the volume control.

Hi

Yes the volume control on the BP-17 Cubed is a Balanced control with extremely accurate left/right accuracy and most of the gain is between 10 and 1 o'clock.

So people are use to volume controls having most of the gain at 8 to 11 o'clock and with our volume control some think that the preamp is not as powerful.

On a preamp the output is always at full gain and the volume control turns the gain down (opposite from a power amp). So it could be argued that the volume control on a preamp full up is the best performance.

james

[ruffoc]

Originally Posted by James Tanner - Bryston

Hi

...most of the gain is between 10 and 1 o'clock...

james

Thanks James. This is a good thing!

[clpetersen]

Originally Posted by James Tanner - Bryston

Hi

Yes the volume control on the BP-17 Cubed is a Balanced control with extremely accurate left/right accuracy and most of the gain is between 10 and 1 o'clock.

james

Thanks, James, for the detail. This looks like a marvelous product.

OK, a techie question - when you say most of the gain is between 10 and 1 o'clock, can I take that to mean the relative change in attenuation per degree of knob rotation is greatest in this 10-1 o'clock range?

thx!

[James Tanner - Bryston]

Originally Posted by clpetersen

Thanks, James, for the detail. This looks like a marvelous product.

OK, a techie question - when you say most of the gain is between 10 and 1 o'clock, can I take that to mean the relative change in attenuation per degree of knob rotation is greatest in this 10-1 o'clock range?

thx!

Correct sir.

james

[James Tanner - Bryston]

http://www.enjoythemusic.com/magazin...ier_Review.htm

[ruffoc]

Nice review James

Confirmation that the BP-13 cubed has a very gradual volume taper. Exactly what I'm looking for!

"The volume knob was at midway point (12 o'clock) but the volume level was still surprisingly low... [adjusting] the volume knob to two o'clock .... The volume was now, closer to my normal listening level."