REL 3 Wire Sub Speaker Cable. This includes Channel Islands, Northern Ireland, Isle of Wight and Scottish Highlands. A High Quality upgrade cable for’REL’ subwoofers manufactured using Genuine Neutrik Connectors and the world renowned Van Damme speaker cable. Ultra pure copper conductors, cutting edge PVC compounds, smooth signal transmission, toughness and flexibility. WIRING INFO FROM REL. High-level connection, using the enclosed cable with the Neutrik Speakon connector, is always the first choice. By connecting to the amplifier’s speaker outputs the sonic signature of the entire amplification chain is folded into the signal for the sub, thereby keeping timing and timbre cues consistent. In other words, the signal sent to the REL is the same signal sent to the speakers, allowing for seamless integration. This connection can be made without affecting the performance of the amplifier because the sub’s amplifier input impedance is 100,000 ohms. This scheme also avoids adding any detrimental effects by not interposing any additional electronics into the amplification chain. 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. 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. We are a UK based company specialising in the production of high quality’custom’ cabling for musicians, studios, stage, cinema and broadcast. We manufacture audio, video, data and power cabling using the best components the world has to offer. We employ and train highly skilled staff, many of whom have extensive experience and education in Audio and Electrical technology. We are Electricians, Electronics Engineers, Radio Enthusiasts, Mix Engineers, Live Engineers and some of us are just damn good at soldering! On custom cable orders is a 3-5 day service. UK Next Day Guarantee. Is’same day dispatch’ on orders placed before 12pm, and delivered via Next Day Courier. After 12 months the costs are paid by the customer. Limits of Responsibility We accept no responsibility for damage to equipment incurred during operation or use of our products where an item has been improperly used. Please contact our Technical Team for advice prior to ordering if you are unsure about your requirements. All of our manufactured products are electrically tested before dispatch. We pressure test for short circuit, continuity and insulation resistance. Due to the nature and complexity of what we do there was no single tester available on the market to accommodate all of our needs so we decided to build all of our own testing equipment! Our testers go way and beyond what is normally offered, ensuring quality of sound and reliability. All AC mains products conform to BS 7671 wiring regulations and are tested by qualified technicians trained to City & Guilds 2377 standards. We take waste and our impact on the environment very seriously. All of our plastic and cardboard waste is separated and collected on a monthly basis. We try to keep packaging to a minimum and try to re-use packaging materials where possible, so please do not be upset if your order arrives in a second-hand box! Please keep your bubble wrap for Christmas and re-use boxes where you can. If you wish to return unwanted cable and connectors then please do so, we are happy to recycle them on your behalf. Data Cabling (Digital) + CV.