Finally took the Bryston 4B Cubed plunge


Back in January, I solicited folks on the forum for input on the Bryston 4B cubed amp. I was kicking around the idea of replacing my Parasound A21 amp. After dealing with poor health for the past few months, I finally did it! My take on the Bryston is: it's a keeper. It is a better sounding amp than my A21, but by only a very small margin. The Bryston gives the feel of being in a concert hall. An extremely full sounding amp with great detail and there's more emphasis on instrument placement than I've experienced before. The bass doesn't suffer at all either, very tight and clear. In comparison only to the two amps I'm discussing, if the Bryston were a "10", the Parasound would be a close "9". If I were to improve on my system (God forbid, I already have $35K into it), the 4B cubed would definitely be driving it. A premium solid state amp. 
To all the the forum members that were willing to guide me with their opinions, I give a heartfelt thanks. My previous posts (inquiries) were met with sincerity and am grateful that none of the discussion went off the rails. A few members contacted me personally, some I couldn't respond to. I didn't try to ignore anyone, there's simply a downside to old age and a weak heart.
professorsvsu

Showing 3 responses by phcollie

xcool, thank you for your post on the JC5. I have been going back and forth between purchasing the JC5 or the 4B3 to pair with my Magnepans. Today a dealer offered me a very attractive price on his demo 4B3 with about 50 hours of use. It should arrive Friday and I will be happy to report back after the weekend. I know Bryston runs them 100 hours before they leave the plant so I should get a reasonable idea of the sound after the weekend.
I will leave my Odyssey powered up as well and plan on doing some A/B testing on a range of Qobuz high res files.  
@xcool,
Spent about 22 hours listening this weekend to the new 4B3. I’m not a reviewer who uses buzz words well but I’ve tried to avoid expectation bias and be objective. First...Noticed it was completely silent. My Odyssey had a noticeable hum if you put your ears to the Magnepan panel. I Like the 23db Gain switch option, matches better with my Tube Preamp. Runs barely warm to the touch. Sound is transparent, precise and neutral. Listening to strings in the upper end takes you right to the edge as the music is actually played but never uncomfortable. I would describe it as clean and sweet but not subdued or mellow. Another change was the firm low end and control in the middle low end that was lacking with the Odyssey. I now know what smear, or rather lack thereof means. Night and day difference in presentation of an image. Listening to Julliard Strings playing Middle Quartets I could specifically locate where the First, Second, Cello and Viola were sitting. When they played the same note I could still separate them. Pace and quickness much improved. Female vocals were full of air and listening to Gregory Porter’s baritone voice is rich and involving. I listened to Folk, Indie, Light Rock, Techno, Jazz and Classical and did not find anything objectionable. Everything is system dependent of course but it is clear that the 4B3 plays well with others so to speak and gets along fine with the Magnepans, My NuPrime Dac10 and the Freya Plus. If your goal is to manage your sound color and timbre on the front end and have the amp stay out of the way then the 4B3 does just that and will not heat up your room. Head room and power is ample & beyond sufficient so I do not see where I need more than 500 watts with my 4Ohm load. Good Luck.
Asia,  Thank you for your post. Since I listen to Magnepan, the treble and mids are highly resolved. "Grainy" is an adjective I would never consider with my 4B3.  To my ears, it is clean, accurate and detailed. I am extremely pleased to hear the results of your Society Test. Your findings regarding the unbalanced input gives me something to examine as I have been running everything balanced.