Miraculous Performance at a Very Modest Price

Creek's OBH-18 Phono Pre-amp offers state of the art build quality and high-grade audiophile internal components. The OBH-18 works with most moving magnet cartridges, bringing the now-famous Creek rhythm and pacing to your system. The aluminum faceplate gives the OBH-18 a simple, timeless look, the sturdy extruded aluminum chassis minimizes vibration and protects the OBH-18 from external RFI and EMI interference.

The primary function of the OBH-18 is to boost the level and correct the frequency response of a low level signal coming from a moving magnet phono pick-up on a conventional turntable. The signal required by most modern amplifiers is described as being 'LINE' level, which is, in technical terms, between 200 and 500 milli-Volts with a flat frequency response. Unless your amplifier has a specific 'Phono' or Disc input, the level will be too low and the frequency response will be wrong. The OBH-18 is designed to boost the signal and introduce an R.I.A.A. frequency response characteristic.

The OBH-18 works best with MM cartridges from 2.5mV to 5mV.

Gain: 37 dB
Frequency Response: 20 Hz to 20 kHz +/- 0.25 dB
Signal to Noise Ratio: - 83 dB
THD: < 0.03%
RIAA deviation +/- 0.5%
Output: 250 mV
Output Impedance: 100 Ohm
Input Sensitivity: 3.5 mV
Impedance: 47K Ohm / 220pF
Overload Margin: 22 dB
Mates well with cartridges: 2.5 mV - 5 mV output
Power supply voltage 24VDC @ 30 mA (included)
Weight: 6.5Lbs
Size L/W/H 6x4x2.6"

User Manual (PDF, 882 KB)

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