Help with Bryston 4B Hiss!!!
Hi, I have a situation that’s driving me crazy, it’s quite complicated but I’ll try to be as clear as possible for you guys, so maybe you can help me find a solution.
My setup is Lynx Hilo —-> McOne B Monitor Controller ——-> feeding: Bryston 4B with NS10s, and Genelec 8030s.
The thing is: When I try to use the combination Hilo-McOne-Bryston-NS10, I have a very loud hiss clearly audible that won’t let me mix.
Things to consider:
-With the same setup but a Stewart Amp instead of the Bryston : NO HISS. So, NS10s are out of the equation (Also tried ProAc Studio 100s and work fine so it’s not an impedance problem).
-Using the Genelecs. NO HISS. So Lynx Hilo is out of the equation and McOne are working fine.
-Bryston is connected directly to the wall.
-Bryston has just been serviced and working great elsewhere.
-Bryston 4B is one of the older ones, UNBALANCED with RCA connectors. The Stewart amp is balanced.
-I’m using 2 TS-RCA cables, which work fine as I get no hiss when connecting the Bryston directly to the Hilo.
-Unplugging the inputs from the Bryston, NO HISS when turned on. So Bryston is working fine.
And here comes what’s driving me crazy. When I connect the Hilo directly to the Bryston (no monitor controller) it works great, NO HISS. BUT, using the monitor controller with any other Monitor or power Amp, like the Stewart (which is balanced), everything works fine.
The only combination where I get this Hiss is when using the McOne monitor controller AND the Bryston.
Can you guys help me to find a solution? Can the problem be that the McOne has balanced connections and the Bryston is unbalanced?
Thanks a lot!