Jeff Rowland Coherence II


The Jeff Rowland Coherence II preamplifier is in perfect condition with no dents, never repaired before and was slightly used. Comes in Original Packaging.

Brand: Jeff Rowland
Type: preamplifier
Model: Coherence II
condition: 9/10



line-level remote-control preamplifier.
Inputs and outputs on XLR connectors (pin 3 wired as noninverting).
Volume Control range: 63.5dB in 0.5dB steps.
Preset Gain Range: 0-20dB.
Frequency response: 0.5Hz-160kHz, -3dB. Channel separation; >110dB, 20Hz-20kHz.
Input impedance: switchable between 18k and 600 ohms.
Maximum input level: 13V RMS (0dB gain).
Output noise level: 12µV, 20Hz-20kHz (0dB gain).
S/N Ratio; >96dB. Power supply: AC-assisted, microprocessor-based rechargeable battery power supply, using two 12V, 7.2 amp/hour, maintenance-free, lead-acid batteries. Battery service life: 5-8 years. Power consumption: 40W max, 10W nominal.
Dimensions: 17.5″ W by 3.7″ H by 10″ D (with power supply). Combined weight: 83 lbs.


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