User manual RANE SM 26

[. . . ] See the full explanation of the power supply requirements elsewhere in this manual. SM 26 CONNECTION When connecting the SM 26 to other components in your system for the first time, leave the power supply for last. This gives you a chance to make mistakes and correct them before damage is done to anything fragile. As you have no doubt noticed, all Inputs and Outputs on the SM 26's rear panel are ¼" connectors. The Inputs and Outputs are active balanced on Tip-Ring-Sleeve (TRS) jacks which allow the flexibility of connecting in either a balanced or unbalanced fashion. [. . . ] The ring is not essential unless balanced operation is required. You should be aware that if you are running unbalanced and using TRS connectors with both ring and tip, the ring and sleeve must be shorted together. Failure to do so on the inputs results in a gain loss of 6 dB. Balanced operation requires that TRS plugs be used. The tip is hot (+), the ring is return (­) and the sleeve is ground. RaneNote 110, "Sound System Interconnection" (included here) contains some great pictures to aid your interconnect ventures. WEAR PARTS: This product contains no wear parts. Manual-1 FRONT PANEL DESCRIPTION POWER switch: Two guesses . . . . . . POWER indicator: When this yellow LED is lit, the SM 26 is ready to go. MASTER OUTPUT LEVEL controls the amount of signal at the MIX OUTPUT jacks. It does not affect the level of any of the six MONO OUTs. This control changes the gain of the output stages. This allows an increase in headroom to eliminate overloading due to excessive combined signal from one or more Inputs. LEFT & RIGHT MIX OUTPUTS: These balanced TRS ¼" outputs are controlled by the MASTER OUTPUT LEVEL control. They are fed either by the Master LEFT & RIGHT INPUTS (respectively) or by any of the six MONO INPUTS, or a combination of both (Rane Note 108 helps). Remote power supply input: The SM 26 is supplied from the factory with a Model RS 1 Remote Power Supply suitable for connection to this input jack. The power requirements of the SM 26 call for a 18-24 volt AC center-tapped transformer only. Never use a power supply with your SM 26 other than the one supplied or a Rane approved replacement. A #6-32 screw is used for chassis grounding purposes. See the CHASSIS GROUNDING note on the next page for details. Manual-3 OPERATING INSTRUCTIONS Since numerous applications exist for the SM 26, no single set of operational procedures control its use. Rane Note 108 (included) explores the many configurations of the SM 26 in depth, and you should peruse it for applications information. INTERNAL JUMPER OPTIONS There exist within the SM 26 some signal routing options, requiring removal of the top cover to move some jumpers. If an SM 26 needs to have an additional set of independent outputs, as in a 2x4 stereo distribution amplifier (see Rane Note 108, Figure 10), the LEFT and RIGHT MIX OUTPUTS can be used in addition to the 6 MONO OUTS. Normally, the LEFT and RIGHT MIX OUTPUTS produce the sum mix of all 6 LEVEL and PAN controls. [. . . ] To break any Channel away from the Mix Output bus, jumpers have been provided. Jumper 1W2 connects MONO OUT 1 to the mix bus. 2W2 connects MONO OUT 2, 3W2 connects MONO OUT 3, and so on. POWER SUPPLY As noted elsewhere in this manual, never use a power supply with your SM 26 other than the one supplied with your unit or an exact replacement obtained from Rane Corporation. [. . . ]