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Sony STR-DB930

Audio Video Receiver

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Sony STR-DB930


Tuning range: FM, MW

Power output: 110 watts per channel into 8Ω (stereo)

Surround output: 110W (front), 110W (center), 110W (rear)

Frequency response: 10Hz to 50kHz

Total harmonic distortion: 0.05%

Input sensitivity: 2.5mV (MM), 150mV (line)

Signal to noise ratio: 86dB (MM), 96dB (line)

Output: 150mV (line)

Speaker load impedance: 4Ω to 16Ω

Digital inputs: coaxial, optical

Video Connections: composite, SVHS

Dimensions: 430 x 405 x 160.5mm

Weight: 13kg

Accessories: remote control



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Reviewed May 09th, 2018 by Jacobi65

Perfect Surround receiver from sony, and very good sound even in stereo..:-) Use it stereo with bi-amping your speakers, and you won´t regret..:-)

Reviewed May 02nd, 2017 by TexasBigEars

Simply put, this is s sleeper! It incorporates a very high quality design and very high quality parts - possibly the best Sony has ever used in a receiver, including the ES series.
For the thrill of it, open one up and gaze at all of the complete circuitry (many circuit boards have missing parts) and at all of the top quality (gold) caps used - no regular (silver) ones used anywhere.
Then, put it back together, get some high-fidelity speakers, use some quality speaker wire, and then enjoy real music.
P.S. before doing any critical listening, run the receiver for a month on FM to let the caps rebreak-in.



re: STR-DB930

Hello All,
Like some others, I have the "protector" issue. After many years of great performance, the amp was used at high volume with the cooling blocked and that was it. Having read up on the amp, I checked the power transistors and they were blown, left front channel.
Having replaced the two output transistors, I checked further and found that the nearby smaller one on the heatsink was also blown, so I replaced that.
The amp still has the protector message it comes up after about 8 seconds. I tried the factory reset procedure and unplugging from the supply overnight, but the protector message remains, with all inputs and outputs removed.
Just wondering if anyone has any other suggestions?

howardhudson's picture

re: STR-DB930

I have a chance to get one of these cheap, but it powers up and goes into "Protector" mode. Is it worth opening it up? Are parts available?

Let me know what y'all think.

I am pleased with the positive reviews for this Sony, but I had a lovely H-K AVR8000 that had a known issue where one circuit board died, and parts were unobtainium. I wound up junking the rest of it...

re: STR-DB930

Hi, Yes it is worth picking up. The most likely problem due to the symptom is one of the channels is blown. The parts are available. You can find the output transistors at bd enterprises online. I have one of these bought new and still like it. If you can fix and end up not liking it, you can likely flip it for a profit.


re: STR-DB930

Hello guys ..
I just pick up one of these amplifiers and i am very surprised with the sound .
Can someone help me how can i use it for bi-amp my speakers ?


steve's picture

re: STR-DB930

Let me start by saying I never was a fan of Sony audio stuff. Picked this up cheap as an stop gap while one of my big Yammys was in for a refurb because it had pre-outs that I needed to hook up to external amps. Hooked it up prepared to be unimpressed and was pleasantly surprised. I was just going to pass it along when I got the Yammy back but decided it was a keeper. It now runs a 5.1 setup in a bedroom driving 4 paradigm monitors and a centre without breaking a sweat. Nice little (maybe not so little) amp. If you come across one at a reasonable price grab it.

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