This latest Jolida effort now allows you to choose either EL3 tubes or 6550 tubes without any circuit modifications. You choose the tubes to give you the sound you want: EL34s for their silky highs and luscious midrange or 6550 for more bass punch and outright power. Call us at (800) 947-4434 if you need help choosing..
Rated Output Power: 60 W per channel at 8 ohms, 25Hz to 60KHz
50 W per channel at 8 ohms, 28Hz to 72KHz
Maximum Power Output: 85 W per channel at 8 ohms, 1KHz with 6550 Tubes
75 W per channel at 8 ohms, 1KHz with EL34 Tubes
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 50/60 watt output
Output Impedance: 4 ohms and 8 ohms
Negative Feedback: Less than 5 dB
Noise and Hum: 85dB below rated output
Tube Complement: 4 pcs. EL34 or 6550 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: 51 pounds (18 Kg) net, approximately 55 pounds (21 Kg) packaged
Warranty: Two year limited parts and labor. One year or 1000 hours whichever comes first on Jolida Tubes.
Bias Settings: 400 millivolts + 40 mV For EL 34s ot 500 millivolts + 50 mV for 6550s
Fuse: 110 - 120 VAC, 6.3 Amp slo Blo; 200 - 240 VAC, 3.15 Amp slo Blo
Size 5mm X 20mm
Construction Details and Features:
o Fully Integrated Stereo Amplifier: Can be ordered with 6550, KT 120, Kt 150 or EL34 vacuum tubes. Input 600mV driving 60 watts, maximum 85 watts output with 6550 power output tubes. Input 600mV driving 50 watts, maximum 75 watts output with E:34 power output tubes.
oMultiple Inputs: Front mounted selector switch-CD, DVD, Tuner and Aux. (for TV, VCR or
o Features: Bypass or power amp setting, Switching from EL34 to 6550 tubes. Fixed and Variable out.
oCustom 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. EZ- biasing: turn the screw until the light goes on and the tube is biased. No resistors in the signal path.
o Full aluminum chassis.
o Connector, Ultra Pure Wire add on options.
o Low Feedback Design: Only 5 dB