Jolida - Fusion 3502 tube integrated amp ...

joeinid

joeinid

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I took a chance for the fun of it, ordered the Jolida Fusion 3502. Could be a fun little piece.

Jolida Fusion 3502S Integrated Tube Amp

Combining the best of the JD302CRC and JD502CRC designs, Jolida dramatically elevates audio performance in the Fusion 3502S. With a flick of a switch, you can set this integrated to operate with 6550, KT88, KT120, KT150, or EL34 vacuum tubes. The EZ-bias circuit is completely redesigned to deliver a bandwidth of 8Hz—130kHz. Fusion 3502S also includes ESA clarity coupling caps, high-speed diodes, and DC voltage to the preamplifier tubes, improvements that lower the noise floor and increase frequency, linearity, air, and dimensionality. And let's not forget the sound. The moment you hear it, you'll know this integrated amp's clear, smooth, and three-dimensional signature is the kind only gleaned from tubes. All you need is to pick black or silver, and the tubes of your choice!

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

Computer

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


AJDFN3502SELS.jpg
 
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Joe, that really looks the goods, give us some feedback when it it's on song
 
Wow! That's a great deal, wish I was there to too. :)
 
Thanks Paul. Looks like I might get it tomorrow if FedEx cooperates. Can't wait!
 
Joe-It's official:You are an audio gear nympho. :P
 
joeinid said:
Thanks Paul. Looks like I might get it tomorrow if FedEx cooperates. Can't wait!
Click to expand...

Sorry that the Barn is picked clean of the good EL34 stuff. I did get Shawn a quad of Phillips rebranded Mullards XF1 and XF2s for only $100 and he was over the moon. Of course he wanted more (especially the metral base Phillips XF0), but only EH are left...

If any more reapperas, I will let you know.
 
mep said:
Joe-It's official:You are an audio gear nympho. :P
Click to expand...

:blush: Guilty.

wisnon said:
Sorry that the Barn is picked clean of the good EL34 stuff. I did get Shawn a quad of Phillips rebranded Mullards XF1 and XF2s for only $100 and he was over the moon. Of course he wanted more (especially the metral base Phillips XF0), but only EH are left...

If any more reappears, I will let you know.
Click to expand...

Thanks Norman. It will take a quad of anything from 6550, KT88, KT120, KT150, to EL34.
 
Joe-If you can run KT-150 tubes in this IA, please do. They are the bomb.
 
I will. I'll run it and break it in with the stock EL-34 and switch to KT-150's probably late next week.

I know it's not an expensive amp but other Jolida gear have been getting great feedback. This one has a few upgraded parts so it should be fine.

mep said:
Joe-If you can run KT-150 tubes in this IA, please do. They are the bomb.
Click to expand...
 
joeinid said:
:blush: Guilty.



Thanks Norman. It will take a quad of anything from 6550, KT88, KT120, KT150, to EL34.
Click to expand...

I will see what he has in those tubes in GOOD brands for good prices next time I go there.
 
Thanks Mark. Still waiting for FedEx so I can get to work. Ugh!
 
joeinid said:
Thanks Mark. Still waiting for FedEx so I can get to work. Ugh!
Click to expand...

I hope your Fed Ex delivery isn't like my Fed Ex delivery. Mine are famous for gaming the system and entering into the system that they attempted delivery and no one was home-even on packages that no signature is required like my last shipment of tubes. All because sometimes they just don't feel like making the drive to my house.
 
Apparently the amp did arrive.

For EL34, he needs some great NOS Euro tubes. Phillips/Mullard? XF codes?
 
Hi Doug,

I just set it up and biased the tubes. It's a bit constricted and a little bright, definitely needs break in. It absolutely shows promise. I think it will be great.
 
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