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.

M-504, new blue LED bulbs, cleaned and tested, works excellent

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.

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

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

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

For sale is this Onkyo M504 Stereo Amplifier. This pre-loved gem, with its impressive 165Wpc into 8 ohms, has stood the test of time, delivering powerful, precise sound that’s sure to delight the discerning audiophile.It creates a wide, expansive soundstage, and its clean power output ensure your music is always at its best, whether you’re enjoying a quiet evening at home or entertaining guests.The M504’s rugged build, weighing in at a hefty 50 pounds, demonstrates its durability, and with its elegant green meters, it’s as much a visual treat as it is an auditory one.The Onkyo M504 Stereo Amplifier - a piece of audio history that’s ready to make new memories. Experience the vintage difference today.

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.

In working condition

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.

This amplifier was working and I put it away in closet for a couple years but now when powered up the meters peg and it does not come out of protection mode. Im sure someone that knows what to do could fix it. This is very heavy and very powerful. These compete with much more expensive amplifiers. Cl2

You are buying a ONKYO M-504 INTEGRA STEREO POWER AMPLIFIER AS IS, PARTS OR REPAIR- THIS UNIT POWER ON ONLY ,NOT OTHER FUNCTIONS MISSING POWER BOTTOM Local pick up only A power switch need to be replaced Cosmetic is on great condition with manor scratches from normal used Pictures are part of the description so please see them carefully and make your own conclusion about the item’s WHAT YOU SEE IS WHAT YOU GET Thanks for looking selling as the pictures shown. Please contact seller if you have any inconvenience with your item, before open an eBay case or leave a negative feedback (There are many ways to solve any issue) Is very important for Us make our costumers happy’s. Buy with confidence. ?????TOP SELLER ????? • See other items in our eBay page!!! https://www.ebay.com/str/jarvingracestore

If your reading this listing you already know the quality and performance of the m-50 power amp and I. Sure you have seen the second to none good looks of the glowing meters bouncing to the beat but have you ever heard this amp the way its ment to be heard through a matching integra preamp and integra tuner as well these units are getting harder to find and these three are coming from original owner who had them in his bedroom for many years and the only problem to mention is one lil know was lost in last move but should be easy to replace we had it checked by a tech who said he found no problems other then the missing knob

This is a great looking and fully functional Onkyo M-504 amplifier. Wood side panels are in great shape. All lights and VU meters are working as they should. Unit comes with all original feet down below. These are a couple minor scratches that I have tried to photograph... Unit will ship in oversized foamboard lined HD box and will be fully insured with signature required!

This Onkyo Integra M-504 Stereo Power Amplifier is a high-quality audio device that will elevate your sound system to the next level. It is powerful and delivers clear audio with minimal distortion. Nice attractive wood grain sides and exterior in great clean condition!

If your reading this listing you already know the quality and performance of the m-50 power amp and I. Sure you have seen the second to none good looks of the glowing meters bouncing to the beat but have you ever heard this amp the way its ment to be heard through a matching integra preamp and integra tuner as well these units are getting harder to find and these three are coming from original owner who had them in his bedroom for many years and the only problem to mention is one lil know was lost in last move but should be easy to replace we had it checked by a tech who said he found no problems other then the missing knob

If your reading this listing you already know the quality and performance of the m-50 power amp and I. Sure you have seen the second to none good looks of the glowing meters bouncing to the beat but have you ever heard this amp the way its ment to be heard through a matching integra preamp and integra tuner as well these units are getting harder to find and these three are coming from original owner who had them in his bedroom for many years and the only problem to mention is one lil know was lost in last move but should be easy to replace we had it checked by a tech who said he found no problems other then the missing knob