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Designed by the creator of Tonelux, the Studio Projects SPM5 is a unique high quality microphone/instrument preamp with an added 'radiance' feature, which provides adjustable high end 2nd harmonic content to your signal without boosting overall output. This is useful for adding clarity and presence to your signal source.

The input circuitry is discrete, while the output is transformer balanced. The preamp provides a clean, low-noise 60dB of gain. The front panel features a combo jack for plugging in directly and there is an impedance switch, which can be useful when employing certain microphones, such as ribbon, or dynamic type.

- Input impedances: Mic: 2kohm; Instrument: 1M ohm
- Common mode rejection: 70dB
- Equivalent input noise: -127.5dBu {unweighted, 150ohm source)
- Distortion: 0,001% (+4dBu output, 1kHz)
- Frequency response: 10Hz to 70kHz (-3dB)
- Microphone overall gain: 70dB - (60 dB preamp gain, lOdB output gain)
- Maximum input before clipping: Mic: +4dBu / Instrument: +22dBu
- Max output before clip: +28dBu (lOkohm load)
- High Pass Filter: 12dB per octave cut @ 70Hz
- Nominal output level: +4dBu (electronically balanced)
- Output impedance: 100 ohm
- Output noise floor: -85dBu (typical, with ~-40dB mic gain)
- PPM Meter: 8-segment LED bargraph
- Current requirement: 130mA (maximum) per rail
- Size and weight: Standard 500 Series, 0.65 kilos
- Compliance: VPI Alliance, WHOS-Doc
Brand reference number:SPM5
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