Pre-outs are volume controlled sources that are connected normally to a power amplifier, in most systems people use RCA cables to connect the two together (see here our RCA cables) but for higher quality and cleaner sound we recommend that you use XLR's where this is an option on your processor. When using pre-outs the AV reciever will have the connected speaker load removed to the power amplifier, meaning the remaining speakers connected to the AV receiver will have more power/current avaialble - allowing them to better fill the room with tighter, more controlled output.

The amount of channels you can process depends on your AV reciever/processor.

Similarly, the amount of pre-outs on the back determineshow many channels you can power via a power ampifier.

Most of our customers start of with a 2-channel power amp for the front left and right speakers or move up to a 3-channel for front left right and centre. These 3 channels are the ones which take the most power from AV recievers so when you take this load away, the other channels get much more power.

The Lyngdorf SDA-2400 is a versatile digital stereo power amplifier (Class D) featuring both analog and digital inputs (hybrid), as as a range of features to deliver outstanding performance in a wide range of applications. with 2x400w and 2x200w per channel this power amplifier will definitely drive any speakers and well.

When connecting to a processor/amplifier which supports digital out, the user can keep the signal path totally digital from the source right the way to the output stage with a number of benefits.

The Lyngdorf MP-60 is their flagship AV Processing unit with room perfect included in the package it is capable of processing 16 channels and has XLR outputs for power connectivity to power amplifiers.

All of the AV-Recievers from Yamaha in their Avantage range come with a full range of pre-outs with the V range only coming with the front left and right in pre-outs (i.e. a stereo power amplifier required).

All of the Anthem AV-Recievers come with a full range of RCA Pre-outs ready for a home cinema environment.

All AV Processors have pre-outs on the back of them as this is the way they connect to power amplifiers, wether its through RCA (unbalanced) or XLR (balanced). In some cases like on the back of the Lyngdorf MP-40+60 and all of emotivas they only have XLR outputs.

Balanced has a lot less risk to unwanted noise, while unbalanced audio can pick up unwanted humming and buzzing but most of the time the unwanted noise isnt really noticable.