User guide

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PROBLEMS Studio Projects electronics are extremely resistant to physical damage, but if the unit fails to work after being dropped, it should be returned in adequate packing to the supplier. A double test and inspection system means that manu- facturing faults are non-existent but should any fault occur, it will be repaired (or replaced) free of charge except where the fault has been caused by physi- cal damage. (SEE WARRANTY INFORMATION) ORIGINS AND MANUFACTURE Studio Projects Electronics are entirely designed in the USA. They are manu- factured in China under strict guidelines set by PMI Audio Group Gardena, Californa. All Studio Projects electronics are inspected and tested at the factory, then inspected and tested again at PMI Audio Groups facility prior to shipping. Studio Projects electronics meet the requirements of electronic equipment sold both in the USA, Canada, and the European Union. All Studio Projects products are CE Approved, and all power supplies are UL rated. DECLARATION OF CONFORMITY This analog audio processing equipment conforms to the standards and requirements of the European Economic Community. The EC Harmonized standards that have been applied are; a) Electrical equipment (safety) Regulations 1994 (S.I. 1994/3260) b) Electromagnetic Compatibility Directive (89/336/EEC) incorporating (S.I. 1992/2372)
TROUBLESHOOTING 1) The microphone doesn’t work! Have you got something plugged into the INSTRUMENT input or is the mic/line set incorrectly? (this can disable the microphone input) Is the phantom power on? (capacitor microphones). If there is indication on the VU LED, is the output volume control turned down? 2) Got signal going through but no output? Is there enough signal? Use plenty of drive. Is the output gain control turned up, and do you have a properly work- ing monitor system? 3) I don’t get any power! Is the supplied power supply plugged in correctly? Make sure the barrel connector is pushed all the way into the socket, and be sure you have available power to the supply.
SP828 SPECIFICATIONS Input Channel: XLR in to TRS Out Frequency Response: 20Hz – 20kHz • +0/-0.5B (Ref 1kHz) THD+Noise: <0.0002% THD 20Hz to 20kHz at -20dBu In, +15dBu out (35dB gain) Phase Shift: <+/-10 degrees 20Hz to 20kHz Gain Range: 10dB to 65dB Pad: -25db Polarity: Reverse (-180 degrees) XLR Input: 2k5 ohms Balanced, Pin 2 hot EIN: <-127dBu (@150 ohm, 60 dB gain) Max Voltage Gain: XLR-In to Chan Balanced Out=65dB TRS Line Input: 15k ohms Balance Max Voltage Gain: TRS-In To Chan Balanced Out=40dB Channel Output: Gnd-Compensated/Impendance Bal TRS • Max Out=+21dBu
Mix Outputs Mix Gain: Channel to L or R Output: +10dB Mix Insert Points: TRS Jack • Tip=Send, Ring=Return Mix Insert Levels=-2dBu Package Info Power Requirements: 18VAC, 750mA Size: 17.2” x 5.8” x 1.75” (IU)
sp828 manual.indd 2/22/05, 11:07 AM12-13