REL TWINCore Subwoofer Cable. For Dual Stereo Sub Setups

*Sold in pairs, you will receive one cable for the Left Channel and one cable for the Right Channel.

These cables are wired differently to the conventional REL subwoofer cables. They are specifically wired for dual sub setups. Each sub has its own High-Level Speakon feed from the back of the amp, one signal from the Left and one signal from the Right. Rather than the traditional way that takes a summed output of Left and Right into a single sub. You can also take the High-Level feed for the subs from the back of the MAIN speaker, allowing for shorter cable runs in certain arrangements.

Within these cables we used the same circuitry found in the Bassline Blue cables, so these are fully compatible with Naim products.

Connecting your REL to the amplifier

The standard high level hook up procedure is: attach the red wire to the amplifier’s right positive speaker output terminal; attach the yellow wire to the amplifier’s left positive speaker output terminal; attach the black wire to which ever of the amplifier’s ground output terminals is convenient; plug the Speakon connector into the sub’s high level input.

For differential amplifiers using one sub, simply use the standard connecting scheme with the exception of connecting ground to chassis ground, not to speaker output ground, and then connecting into the high level input (Hi Input or Unbal Hi Input on Stentor III and Studio III).

For differential amplifiers using two subs for each channel: connect red to positive; yellow to negative; and black to chassis ground; plug the Speakon into the balanced high level input (Bal Hi Input). Low-level connection, RCA inputs (or XLR on some models), is always an option, should high-level connection not be possible, or in a theatre system where both high-level and low-level connection should be used. When connecting to the low level inputs, connect a single RCA cable to the 0dB RCA jack. Additional gain can be achieved by connecting to the +12dB input. If you are connecting two channels of stereo output from a pre-amplifier, simply use a high-quality y-adaptor to sum the two signals together.

Positioning....

The optimal position for a REL is in one of the corners behind the main speakers. This position provides 9 dB of mechanical amplification and allows for the most linear true low bass wave launch, owing to the ability to tune the sub to the axial node of the room, or longest throw distance.