I have tried the 104 which shares the same input as that from the computer sound card.

I was expecting much higher volume levels.

I have not tried any other input. The speakers are balanced and I use the DIN cable input with two twisted wires. The speaker amps have RCA phono socket. Could I feed the signal from the FM104 and computer through that direct and not through the 101b?

Meridian 101B/104/M1 MkII/D600(x4)/M60C & MCA,Linn Sondek/Ekos/Trokia,Uher CR160,Bose Videomate speakers,Sony RDR-HXD970/PC100/HDR HC7/EV-S9000E/VCC5000/WM-D6C/Nex 7,PC DVD-RW /Blueray-RW/Terratec DMX6FireUSB /Blackgold HD Freeview/ HD Freesat, Devialet Phantom Gold (x2)+Hub, B&W PV1