Jolida vacuum tube amplifier

Roanoke VA

Jolida JD801A

Technical Specifications:
Rated Output Power:
70 W per channel at 8 ohms, 29Hz to 25KHz

Frequency Response:
(at 1 watt into 8 ohms) 6Hz to 48KHz + 1dB

Bandwidth:
14Hz to 70KHz + 3dB; 0dB = 70 W 1KHz, 8 ohms

Distortion THD:
Less than 1% at 11V output, 49Hz to 20KHz, 8 ohms

Circuit Type:
Ultra Linear, Class AB1

Input Impedance:
Less than 100Kohms

Input Sensitivity:
Max. 550mV at 1KHz for 70 watt output

Output Impedance:
4 ohms and 8 ohms

Negative Feedback:
Less than 5 dB

Noise and Hum:
70dB below rated output.

Tube Complement:
2 matched pairs (4) of 6550/KT88 power output; 1 pc. 12AX7A pre-amplifier, 2 pcs. 12AT7A or 6SN7GT power drivers.

Power Requirements:
110V-120 VAC 60Hz 250 watts-standby, 500 watts maximum (220 VAC-240 VAC 50Hz option).

Dimensions:
18.25 inches (46.5 cm) wide by 13.5 inches (34.5 cm) deep by 8.5 inches (22 cm) high.

Weight:
47 pounds (21.5 Kg) net, approximately 55 pounds (25 Kg) packaged.

Warranty:
One year limited parts and labor. One year or 1,000 hours whichever comes first on Jolida Tubes.