Jolida JD502CRC

Fusion 3502S 6550s

Fusion 3502S 6550s

Jolida JD502CRC

Jolida JD502CRC or JD502 CRC has been recently replaced with the upgraded and modified Fusion 3502S or Fusion 3502 S. It still has the same tubes, and chassis, and transformers.

The Jolida JD502CRC or Jolida JD502 CRC is no longer available though it has been one of the best selling tube amplifiers in the Jolida line up. The Jolida Fusion 3502S or Fusion 3502 S has replaced both the JD502CRC and the JD302CRC. It takes both the EL34 tubes or 6550 tubes as well as KT88 tubes, KT120 tubes, and KT150 tubes. The Fusion 3502S also has upgraded diodes, resistors, and capacitors for a cleaner sound with better bass, and extended highs. It is a real improvement. And it is a versatile amp. Many people are extremely happy with their JD502CRC tube amplifiers. Anyone buying this amp will be even happier. Fusion 3502S = $1675 now. Shipping free in USA. International buyers pay actual cost of shipping via USPS priority mail. MSRP with 655o tubes is $1749. This amp can be bought without power tubes if you are interested in buying your own KT*** tubes for it.

Jolida Fusion 3502S replacement for JD502CRC

Combining a JD 302CRC and a JD 502CRC has resulted in the Fusion 3502 S. With a flick of a switch, you can set your amplifier up to operate 6550, KT 88, KT 120, KT 150 or EL34 Vacuum Tubes. The circuit has been redesigned and placed the same venerable steel chassis. Parts of the unit have been upgraded to include ESA clarity coupling caps, high speed diodes and DC voltage to the preamplifier tubes which lowers the noise floor and enhances clarity, air and dimensionality. Flexibility is not only the Vacuum Tubes, the Fusion 3502 has a bypass that allows the amp to be utilized as a power amp. You choose the tubes you want with your order. And for the best part, a clear, smooth sound with the 3 dimensional air that vacuum tubes can deliver.

Technical Specifications:

Rated Output Power: 60 W per channel at 8 ohms, 25Hz to 60KHz with 6550 vacuum tubes

50 W per channel at 8 ohms, 28Hz to 72KHz with EL34 vacuum tubes

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: 91 dB 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

http://jolida.alexpapanicolaou.com/JDandFusion

 

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