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Jeff Rowland Coherence II
Jeff Rowland Coherence II
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Posted On 15.05.2026
Last Update On 15.05.2026 Jeff Rowland Coherence II
Description Original Description is in English, other language texts are translations and can contain errors. EnglishDeutschSpanishTurkish

SPECIFICATIONS:

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: 38kg

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