Jeff Rowland Synergy IIi
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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. |
| Technische Daten: |
| Overall Gain: |
Adjustable for each input, ±20 dB relative to unity gain (0 dB) in 0.5 dB increments |
| Input impedance: |
Adjustable for each input
Balanced 36k or 600 ohms
Unbalanced 36k or 600 ohms |
| Output Impedance: |
Balanced 40 ohms
Unbalanced 80 ohms |
| Maximum Input Level: |
13 volts RMS at 0 dB gain |
| Output Noise Level: |
10 microvolts, 20-20 kHz bandwidth, 0 dB gain |
| Signal to Noise Ratio: |
Greater than 96 dB |
| Channel Separation: |
Greater than 100 dB, @ 20-20 kHz bandwidth |
| Frequency Response: |
5 Hz - 160 kHz, -3 dB |
| THD + Noise: |
0.0012%; 10 volt output, 600 ohm load |
| Gain Range: |
63.5 dB, 127 equal increments |
| Gain Resolution: |
0.5 dB ±0.03 dB over entire range |
| Channel Balance: |
±0.03 dB throughout entire range |
| Power Consumption: |
25 watts maximum |
| Preamp Weight: |
24 lbs./11 kg |
| Power Supply Weight: |
7 lbs./3 kg |
| Preamp Dimensions: |
44.5 cm (w) x 36.2 cm (d) x 14.6 cm (h) |
| Power Supply Dimensions: |
44.5cm (w) x 12.2cm (d) x 3.8 cm (h) |
