This amp is excellent. Right meter lights, but 1 of the two bulbs is out. A couple scratches...consistent with age. Sounds great, tested for hours. Black with Rosewood sides. Heavy, will be carefully packed. Vintage audio: NO WARRANTY OR RETURNS

Excellent sounding and powerful amplifier Have tested the amps performance with both Klipsch 600M and Emotiva T2+ speakers and they sounded great. Even better to watch the full green meters in action! The amp if in perfect working condition. The left wood side piece has a piece of the wood veneer chipped off as shown in pictures and the B speaker button is chipped in the left corner of the button. Have tried to find a replacement and thin the best option might be to 3D print a replacement. Other than that is in good condition on the exterior. Green lights show much better in person from LED upgrade than the pictures do it justice.

For sale is a black Onkyo Integra M-504 stereo power amplifier, perfect for audiophiles looking for high-quality sound. This amplifier has 165W of power, 2 channels, and 1 audio input for stereo L/R RCA. It also features 4 audio outputs with banana speaker jacks for easy connection to your favorite speakers. Giant VU meters show the power output, and there are buttons on the front panel for Power, Speakers 1 and Speakers 2. Owners manual included. Serial number 1809915808. The amp weighs 55 lbs, so shipping is going to be $$$, unfortunately. To keep shipping costs down, the amp will be shipped in its original box - it wont be double-boxed. Free local pickup in the Pittsburgh, PA area. Shipping via UPS also includes insurance. Whether youre setting up a new home audio system or upgrading your existing one, this Onkyo Integra M-504 is sure to impress.

For sale is a black Onkyo Integra M-504 stereo power amplifier, perfect for audiophiles looking for high-quality sound. This amplifier has 165W of power, 2 channels, and 1 audio input for stereo L/R RCA. It also features 4 audio outputs with banana speaker jacks for easy connection to your favorite speakers. Giant VU meters show the power output, and there are buttons on the front panel for Power, Speakers 1 and Speakers 2. Owners manual included. Serial number 1051916584. The amp weighs 55 lbs, so shipping is going to be $$$, unfortunately. To keep shipping costs down, the amp will be shipped in its original box - it wont be double-boxed. Free local pickup in the Pittsburgh, PA area. Shipping via UPS includes insurance. Whether youre setting up a new home audio system or upgrading your existing one, this Onkyo Integra M-504 is sure to impress.

This amp is near perfect. Sounds great, tested for hours. Black with Rosewood sides. Heavy, will be carefully packed. Vintage audio: NO WARRANTY OR RETURNS

Excellent sounding and powerful amplifier Have tested the amps performance with both Klipsch 600M and Emotiva T2+ speakers and they sounded great. Even better to watch the full green meters in action! The amp if in perfect working condition. The left wood side piece has a piece of the wood veneer chipped off as shown in pictures and the B speaker button is chipped in the left corner of the button. Have tried to find a replacement and thin the best option might be to 3D print a replacement. Other than that is in good condition on the exterior. Green lights show much better in person from LED upgrade than the pictures do it justice.

For sale is a black Onkyo Integra M-504 stereo power amplifier, perfect for audiophiles looking for high-quality sound. This amplifier has 165W of power, 2 channels, and 1 audio input for stereo L/R RCA. It also features 4 audio outputs with banana speaker jacks for easy connection to your favorite speakers. Giant VU meters show the power output, and there are buttons on the front panel for Power, Speakers 1 and Speakers 2. Owners manual included. There are a few smudges on the front panel, but they dont show up unless you shine a light straight onto it. Serial number 1051916587. The amp weighs 55 lbs, so shipping is going to be $$$, unfortunately. To keep shipping costs down, the amp will be shipped in its original box - it wont be double-boxed. Free local pickup in the Pittsburgh, PA area. Whether youre setting up a new home audio system or upgrading your existing one, this Onkyo Integra M-504 is sure to impress.

Please read the description before making your purchase. This amp does work and sounds amazing but has a few issues. Issue #1 obviously it’s used has scratches on one of the VU, and on the side panel vinyl some of the vinyl is separating on the bottom. Issue #2 the on and off switch button is missing the front cap but actual button still intact and works perfectly fine. Issue #3 this is for the speaker select switch channel one works perfectly fine no issues but channel 2 needs attention will only works when fully pressed in but than releases. You can see in a photo. Those three are the main issues, the amp does work all speaker outputs works and sounds amazing. Really hate to sell this amp as I was going to make the repair and upgrade to LED but currently in the process of moving out of state so some of my audio equipment needs to go, shipping is expensive as this is 50lbs but rest assured that it will be packaged very carefully I’ve sold many amps with no issues.