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Jolida JD 502B

Jolida JD 502B
alaAverage 3.2

9 reviews

Feb, 2016

alaTest has collected and analyzed 9 reviews of Jolida JD 502B. The average rating for this product is 3.2/5, compared to an average rating of 4.1/5 for other Receivers & Amplifiers for all reviews.

On average, users rate this product 64/100.

Review analysis

(Based on 9 reviews)

User Reviews  


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Showing 1 - 9 of 9 Show Reviews: in English

Consumer review by: Tim Klassen (

Jolida JD 502B Integrated Amplifier Integrated Amplifiers


I've owned the Jolida 502B for 17 years. Bought it from Hawkeye Audio way back when. My first and only tube amp, still going strong. Might not have the greatest depth of bass, but the mid-bass and midrange are astounding, this thing sounds huge. Of...

Jun, 2015

Consumer review by: cHRis (

Jolida JD 502B Integrated Amplifier Integrated Amplifiers


A great amp for the price but the reliability is the MAJOR issue. Within a week of getting the amp, it had electric sparks and smoke. Had to send it back to Jolida ($50 shipping cost) and got it back in several days. Within a minute of powering it up,...

Jan, 2015

Consumer review by: bILL (

Jolida JD 502B Integrated Amplifier Integrated Amplifiers


Do not EVER buy anything from Jolida. Two capacitors went bad and they kept my amp for over TWO MONTHS and charged me almost $300 to fix it. NO APOLOGY whatsoever except to tell me their "systems weren't the best". $300 for two capacitors. Two months....

Oct, 2013

Consumer review by: jim (

Jolida JD 502B Integrated Amplifier Integrated Amplifiers


My Jolida 502 began having problems as soon as i got it out of the box. First off, the EZ Bias system is not working. No problem, I used a meter to bias the tubes but not everyone has the ability to do that. Second, the on/off switch began to...

Apr, 2013

Consumer review by: det.redwings (

Jolida JD 502B Integrated Amplifier Integrated Amplifiers


Unlike the last reviewer, I have had very good luck with my Jolida products. I owned the JD-100A when I

May, 2009

Consumer review by: ggolub (

Jolida JD 502B Integrated Amplifier Integrated Amplifiers


I bought this amp due to favorable reviews and my interest in tube equipment. At that time i was and still using simaudio i-5 solid amp. It was really bad decision to buy Jolida. Underworld Audio sold it for $1200.

May, 2009

Consumer review by: marcus001 (

Jolida JD 502B Integrated Amplifier Integrated Amplifiers


This is a review for the Jolida 502b integrated amp; 2 weeks of break in and I'm completely blown away.

Mar, 2008

Consumer review by: aroostookme (

Jolida JD 502B Integrated Amplifier Integrated Amplifiers


I recently impulse bought a Jolida 502B, I placed an eBay bid that was so low it was silly and no one else bid.

Jan, 2008

Consumer review by: Rockinghorse (

Jolida JD 502B Integrated Amplifier - (Integrated Amplifiers)

Jan, 2007

Product Specifications

One of the most popular and great sounding tube amps on the market, the Jolida JD 502B is an excellent amplifier for almost any application. With 60 watts of tube power per channel, you can drive most loudspeakers with ease. This amp uses the powerful 6550 output tubes which have strong bass response and excellent dynamics. You can also substitute KT88 tubes in this amp if you so choose. Like all newer design Jolida amps, biasing tubes is easy with top mounted individual bias adjustments that make output tube biasing a two minute operation that anyone can do. Technical Specifications: 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. Comes with two year parts and labor warranty.