Jolida vacuum tube amplifiers
Jolida JD102B amplifiers now have a nice transformer cover and are silver and black rather than the old gold tone finish. They have also added a new 12AX7A preamp tube and use separate 12AT7 tubes as drivers for the power section. A nice, compact design that offers clean sound and a cool, retro look for surprisingly not much money!
Jolida
Model JD 102B
Technical Specifications:
Maximum Power Output:
25 W per channel at 8 ohms, 1KHz
Rated Output Power:
20 W per channel at 8 ohms, 26Hz to 50KHz
Frequency Response:
(at 1 watt into 8 ohms) 7Hz to 95KHz + 1dB; 0dB at 1KHz
Bandwidth:
14Hz to 80KHz + 3dB; 0dB = 20 W 1KHz, 8 ohms
Distortion THD + N:
Less than 1.5% at 15W output, 39Hz to 10KHz, 8 ohms
Circuit Type:
Ultra Linear, Class AB1
Input Impedance:
= or < 250Kohms
Input Sensitivity:
Max. 900mV for 20 watt output at 1KHz
Output Impedance:
4 ohms and 8 ohms
Negative Feedback:
Less than 7 dB
Signal & Noise Ratio S/N:
70dB below rated output from 10Hz to 200Khz.
Tube Complement:
2 matched pairs (4) of EL84 power output; 2 pcs. 12AT7
drivers, and 1 Pc.12AX7A pre-amplifier.
Power Requirements:
110V-120 VAC 60Hz 90 watts-standby, 200 watts maximum
(220 VAC 50Hz option).
Dimensions:
12 inches wide by 8 inches deep by 5 inches high.
Weight:
18 pounds net, approximately 22 pounds packaged.
Warranty:
One year limited parts and labor.