Jolida FUSION 3502S

jd502brc1[1]jd502crc_front[1]014Fusion 3502S EL34                                                                       Fusion 3502S with EL34 tubes


Jolida Fusion 3502 S  or Fusion 3502S

Combining the JD 502CRC and the JD 302CRC. With EL34 tubes it looks just like the JD302CRC and with 6550 tubes like the JD502CRC. This amp can handle  tubes, 6550 tubes, KT120 and KT150 tubes. Jolida sells the amp with either the EL34 tubes, or 6550 tubes. You can buy the amp without power tubes.

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 Jolida Fusion 3502S 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. The Fusion 3502S amplifier has MSRP $1799 with 6550 tubes($1695). MSRP $1675 with EL34 tubes- our price now is $1595. This amp also comes as 3502P – power amp. The Fusion amps all have the level 1 upgrade components- ESA clarity caps, Hexfred diodes, and Vishay resistors. The Fusion amps sound very clear, natural, and smooth. Very nice sounding.  

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

Construction Details and Features:

o Fully Integrated Stereo Amplifier: Can be ordered with 6550 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 EL34 power output tubes.

o Multiple Inputs: Front mounted selector switch-CD, DVD, Tuner and Aux. (for TV, VCR or Computer)

o Features: Bypass for a power amp setting, Switching from EL34 to 6550 tubes. Fixed and Variable out.

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. EZ- biasing: turn the screw until the light goes on and the tube is biased. No resistors in the signal path.

o Connector, Ultra Pure Wire add on options.

o Low Feedback Design: Only 5 dB

o Comes in Black or Silver

This Jolida Fusion 3502S amplifier has a mellow sound, and the power to drive almost any speaker. The Jolida Fusion 3502S is heavy. It weighs 50 lbs. Like all Jolida amplifiers the Jolida Fusion 3502S  is well built.  Place your order with us. A newFusion 3502S will be shipped to you direct from Jolida. Contact Petery-Hedden by email, or phone. Visit for more details about Jolida. Sounds smooth, natural, and clear.

Contact information for Petery-Hedden Audio Gallery:

Phone: Bob Anderson, 812-557-2497  Email:

Jolida FUSION 3502S

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Jolida review mentioning our store:

We have an actual store in New Albany, Indiana 47150. If you are in the area stop in. Call first. Email. We are glad to help you.

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