Jeff Rowland Design Group Synergy line preamplifier Specifications

Sidebar 3: Specifications

Description: Solid-state, balanced line preamplifier with separate AC power supply. Inputs: 5 per channel (XLR); 1 per channel, home theater bypass mode (XLR); 1 pair XLR/RCA adapters included. Outputs: 1 main output per channel (XLR), 1 record output per channel (XLR), 1 pair XLR/RCA adapters included. Overall gain: adjustable for each input, ±20dB relative to unity gain (0dB) in 0.5dB increments. Input impedance: adjustable for each input: 36k ohms or 600 ohms. Output impedance: 80 ohms (40 ohms each signal phase). Maximum input level: 13V RMS at 0dB gain. Maximum output level: 13V RMS (24dBm). Output noise level: 10µV, 20Hz-20kHz bandwidth, 0dB gain. S/N Ratio: >96dB. Channel separation: >100dB, 20Hz-20kHz. Frequency response: 5Hz-160kHz, -3dB. THD+noise: 0.0012% at 10V output, 600 ohm load. Channel balance: ±0.05dB over entire volume control range.
Dimensions: Preamplifier: 17.5" W by 3.15" H by 6" D. Weight: 24 lbs. Power supply: 17.5" W by 1.5" H by 4.8" D. Weight: 7 lbs.
Finish: Black chassis with polished aluminum front panel.
Serial number of units reviewed: SO348, preamp, RO348, power supply (1997); 51251 (2002).
Price: $4800 (1997), $5500 (2002).
Manufacturer: Jeff Rowland Design Group, Inc., 2911 N. Prospect Street, Colorado Springs, CO 80907. Tel: (719) 473-1181. Fax: (719) 633-4158. Web:

Jeff Rowland Design Group
2911 N. Prospect Street
Colorado Springs, CO 80907
(719) 473-1181