Trigon TRV-100 Preamplifier

There are also two switched low-voltage-outputs (10V DC) for the running of amplifier and active loudspeaker with DC-remote control. Further TRIGON-equipment, controlled by the TRV - 100 can be connected to a 3-pole-D-sub-socket.
For the running of a high-ohmic head-phone there is a 6,3 mm phone plug at the front of the equipment.
Further the TRV - 100 has got an input/output where special equipment like Surround Decoder, Equalizer etc. can be connected. 

The amplifier is completely controlled by a uP in consideration of a good working separation of the analogous and digital circuits.
The operating of the pre-amplifier is possible at the equipment itself as well as by a IR-remote-control-unit. A clear display on the front of the pre-amplifier, which is dimable and can be switched off, informs always about current positions. In the "Stand-by Modus" the equipment can be switched-off by remote-control-unit.
Independent from the current program the Record-circuit allows copying any program-source. 
The volume can be adjusted by a special D/A-converter, so it is much better than conventional volume control (Pontentiometer) in respect to sound and technology.
Each of the amplifier stage is produced modulary, in the case of developments concerning the technology or the sound they can be exchanged by unplugging.
The integrated toroid transformer with a "Super Silent material" which is low magnetic field and humless runs even very well in the case of unclean voltage. Again the mains-part was very much considered. It consists mainly of four separate mains-parts and contains for the supply of the amplifier stage a special connection, which always allows a low sorce resistance in the case of higher frequency. That way the distortion occuring also in the high-sound-sphere will be minimated and the sound seems to be less rough comparing to the use of usual connections.