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Pairing Bryston 28b3 with tubes

Hello all

I have a pair of Bryston 28b3 monoblock which I want to pair up with a tube pre-amplifier.

I want to add that "tubemagic" to make the music come alive and I´m interested in hearing from
you guys what you recommend. What could be a great match with the monoblocs from Bryston. 

These are some of the pre-amps I´ve been reading up on.

- Cortese from http://www.supratek.com.au/
- Microzotle from LTA https://www.lineartubeaudio.com/products/microzotl-preamplifier

The speakers I will have is custommade with these specs

Drivers: 4 x 17,4cm
Treble: 1 x 2,8cm
Impedance: 7 ohm
Effect: 800W
Maximum effect: >20 kW (> 400 hz)
Sensitivity: 92dB-2.83 V
Power handling: 5w (min) to 2000 W (max)
Soundpressure: >130 dB/pair, 100 Hz (1,4 kW)

Thanks

128x128melchor
melchor's avatar
melchor OP
15 posts
 

Thanks for the feedback! I will check out Luxman and regarding the gain.

vinylmad814
62 posts
 

You could also try the BAT product line. I had a lesser Bryston amp quite a few years back ..4BSST2 paired with an older BAT VK30 preamp which housed 6 - 6922/6DJ8 tubes. I used many NOS and even newer stock tubes and really enjoyed swapping the tubes while paired with the 4BSST2. I always found it softened or evened out the overall audio characteristics of the Bryston amp which some would often term them to be harsh in nature. I found it quite an enjoyable listening experience as compared with the older BP Bryston preamp. The model escapes me but it would have been about 20 years ago. One word of caution is please be sure to match the AMP input impedance to the PREAMP output impedance by using the 10:1 rule. I believe the 4BSSt2 had an IP impedance of 10Kohm while the BAT VK30 had an op impedance of 750 ohm. 

jbuhl's avatar
jbuhl
875 posts
 

Look at Octave Audio see if their specs match up

melchor's avatar
melchor OP
15 posts
 

the newer B-series is a bit tubelike in character and NOT like the old ST-model. But I will search around, thanks

jimmy2615
407 posts
 

I also have the 2.5B cubed but paired with a Primaluna Evo400.  I greatly prefer this pairing than that with the amp and a Bryston preamp.  It’s a great preamp and reasonably priced.  

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