Legacy Product

 
 
 
Synergy IIi Stereo Preamplifier

In 1996, the Synergy Stereo Preamplifier was released, creating a benchmark upon which other preamplifiers were to be judged. Debuting with an extremely compact and non-resonant chassis design with a separate AC power supply, the preamplifier immediately won praise for its outstanding presentation of the naturally recreated musical event.

In 1998 the Synergy was upgraded to Series II status, adding the flexibility and sonic benefits afforded by audio transformer coupling and a second pair of preamp-level outputs. This change in circuitry improved the unit's capacity to interface with diverse associated equipment.

In December of 2000, a new amplification board utilizing modern "small geometry" surface-mount technology gleaned from the Coherence II Preamplifier was designed and released for the Synergy II, lowering noise and distortion, and shortening signal paths dramatically. The current Synergy IIi presents a musical presentation that fully complements the current series of JRDG amplifiers and showcases their benefits without intruding upon the original source signal. Improved transient response, speed, and dynamics, increased transparency and neutrality, and an elevated level of detail retrieval and resolution combine to bring the Synergy IIi to a performance level significantly higher than was thought possible – without an increase in cost. The Jeff Rowland Design Group Synergy Series IIi - embracing our long tradition of applying state-of-the-art technology in the name of music.

 
Specs
Overall Gain :
Adjustable for each input +/-20 dB relative to unity gain (0 dB) in 0.5 dB increments
THD + Noise:
0.0012% 10 volt output, 600 ohm load
Gain Range:
63.5 dB, 127 equal increments
Input Impedance:
Adjustable for each input
36k or 600 ohms
Gain Resolution:
0.5 dB +/- 0.03 dB over entire range
Output Impedance:
Unbalanced 40 ohms, balanced 80 ohms
Channel Balance:
+/- 0.05 dB throughout entire range
Channel Separation:
>100 dB, @ 20-20 kHz bandwidth
Frequency Response:
5 Hz-160 kHz, -3 dB
Inputs:
5 per channel (XLR)
1 per channel bypass mode (XLR)
1 pair XLR to RCA adapters included
Maximum Input Level:
13 volts RMS at 0 dB gain
Outputs:
2 x Pair Balanced Line Level per channel
1 pair XLR to RCA adapters included
Maximum Output Level:
13 volts RMS (24 dBm)
Weight:
Preamplifier
Power Supply

24 lbs. (11 Kg)
7 lbs. (3 Kg)
Output Noise Level:
10 microvolts, 20-20kHz bandwidth, 0 dB gain
Dimensions:
Preamplifier
Power Supply

17.5" x 6.0" x 3.15"
17.5" x 4.8" x 1.5"
Because Jeff Rowland Design Group is constantly analyzing new design improvements, we reserve the right to change or modify product specifications without notice or obligation.

Reviews (includes past versions of the Synergy)

English
Hong Kong
  • Jeff Rowland Synergy & Model 2, Hi-Fi & Hi-Vi Monthly
France
  • Prestige Audio Video, July/August 2002, No. 74, page 40.
  • Jeff Rowland Synergy IIi & Model 10 Revue Du Son, Issue #258
Portugal
  • Jeff Rowland Model 2 & Synergy, VÍDEO PLUS
Italy
  • Jeff Rowland Synergy, SUONO
Germany
  • image hifi Number 15, Mai/Juni 1997
  • audioPHILE 3/2000
Korea
  • Jeff Rowland Synergy & Model 6, HI-FI Journal
Japan
  • Jeff Rowland Synergy, Stereo Sound