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Jolida JD 502B - Page 17

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Maximum Power Output: 85 W per channel at 8 ohms, 1KHz
Rated Output Power: 60 W per channel at 8 ohms, 25Hz to 60KHz
Frequency Response: (at 1 watt into 8 ohms) 8Hz to 130KHz + 1dB
Bandwidth: 15Hz to 80KHz + 3dB; 0dB 60 W 1KHz
Distortion THD: Less than 1% at 20 V output, 28Hz to 15KHz
Circuit Type: Ultra Linear, Class AB
Input Impedance: 100Kohms
Input Sensitivity: 600mV at 1KHz for 60 watt output
Output Impedance: 4 ohms and 8 ohms
Negative Feedback: Less than 5 dB
Noise and Hum: 85dB below rated output
Tube Complement: 2 matched pairs (4) of 6550/KT88 power output; 2 pcs. 12AX7A/ECC83
pre-amplifier; 2 pcs. 12AT7/ECC81 power drivers.
Power Requirements: 110V-120 VAC 60Hz 180 watts-standby, 450 watts maximum (220 VAC
50Hz option)
Dimensions: 17 inches (43cm) wide by 15 inches (38cm) deep by 7.5 inches (19 cm)
high
Weight: 39 pounds (18 Kg) net, approximately 46 pounds (21 Kg) packaged
Warranty: Two year limited parts and labor. One year or 1000 hours whichever
comes first on Jolida Tubes.
Bias Settings: 50 millivolts + 5 mV
Fuse: 110 - 120 VAC, 6.3 Amp Fast Blo; 200 - 240 VAC, 3 Amp Fast Blo
Size 5mm X 20mm
Construction Details and Features:
o Fully Integrated Stereo Amplifier: Input 600mV driving 60 watts, maximum 85 watts output.
o Multiple Inputs: Front mounted selector switch-CD, Tape Recorder, Tuner and Aux. (for TV, VCR or
Computer
o Right and Left Stereo Balance Control: + 50dB at both right and left front panel control.
o Custom Wound Audio Transformers with a core of German grain oriented silicon steel. 15th
generation proprietary design. Secondary can be configured for a 4 ohm or 8 ohm load.
o Top panel bias testing terminal with bias adjustment controls.
o State of the Art Components: ALPS audio potentiometer, gold plated RCA input jacks.
o Low Feedback Design: Only 5 dB
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