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MUSYSIC Professional Power Amplifier 2 Channel 4500W - Home Audio Component Amplifiers for DJ, PA System, Speakers - high Quality Stereo Amp with Digital Audio Processing - Stereo XLR & 1/4" Inputs | Amplifiers for DJ, PA System, Speakers - high Quality Stereo Amp with Digital Audio Processing - Stereo XLR & 1/4" Inputs

  • Based on 232 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Jul 24
Order within 4 hours and 48 minutes
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Size: 4500 Watts


Features

  • [Professional Power Amplifier] The SYS-4500 delivers 4500W peak power with crystal-clear, distortion-free sound. Equipped with ATR Technology, it responds instantly to the most demanding bass transients, providing punchy dynamics and maximum clarity at any volume. Perfect for musicians, DJs, and serious listeners.
  • [Experience Concert-Level Power & Clarity] The MUSYSIC SYS-4500 2-channel professional amplifier delivers 4500W peak power for massive, front-row concert impact. Designed for DJs, live performers, and audio enthusiasts, it offers an extended 10Hz50kHz (1.5dB) frequency response, ultra-low <0.1% THD for crystal-clear sound, and ATR Technology for fast, punchy, distortion-free performance at any volume.
  • [Connectivity Options] PA amp with multiple input/output configurations; Supports amplifier speaker connections; Compatible with CVR amplifier systems; Includes power amplifier 2 channel expansion capability; Advanced digital amplifier technology
  • [Versatile Applications] Perfect amplificador de audio for home or professional use; Functions as speaker amplifier in multiple environments; Ideal power amp for passive speakers; Supports both indoor and outdoor amplifier requirements
  • [Premium Amplification for Pure, Powerful Sound] Experience crystal-clear audio with clean power supplies and high-quality preamps that faithfully reproduce every detail. Featuring 0.77V input sensitivity, this amplifier transforms weak signals into powerful, high-fidelity sound with low noise and an expansive soundstage that brings your music to life.

Description

Founded in 2010, MUSYSIC makes high-quality DJ and audio gear affordable for everyone. Our team of musicians and audio fans offers top-notch speakers, mixers, microphones, and DJ controllers, all rigorously tested for quality. We believe every musician deserves to sound great without spending a fortune. Join us and experience professional sound at a fraction of the cost. Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Visit the Store Powerful, clean, and dependable. The SYS-4500 gives you 4500 watts of pro-level amplification with easy controls and clear LED monitoring. Ideal for any stage or sound setup. Bring cinema-quality sound to your living room with the MUSYSIC SYS-4500 Professional Power Amplifier. Massive 4500 watts of clean, powerful audio for movies, music, and gaming. The MUSYSIC SYS-4500 delivers 4500 watts of reliable, high-performance power trusted by DJs and live sound engineers. Crystal clear sound that fills the venue every time. The MUSYSIC SYS-4500 is perfect for DJ performances, live bands, concerts, weddings, parties, churches, auditoriums, and large events. It also delivers powerful, clean sound for home theater systems, music setups, and professional PA installations. Is this amplifier suitable for DJs and live events? Yes! It is designed for professional use. With its high power, ATR (Accelerated Transient Response) technology for punchy bass, and reliable cooling, it performs great for DJs, bands, concerts, weddings, and large PA systems. How many channels does it have? It is a 2-channel (stereo) amplifier with independent gain controls for each channel, giving you full flexibility to balance your sound. What inputs and outputs does it support? It features balanced XLR and ¼" inputs for easy connection to mixers and audio sources. Outputs include Speakon and binding post connectors for secure and flexible speaker wiring. Does it have built-in protection? Yes. The SYS-4500 includes advanced protection circuits, clip indicators, signal LEDs, and a front-to-rear cooling fan system to keep the amplifier safe and running cool even during long performances. Can I use it at home for movies and music? Absolutely. Many users power their home theater or music systems with it. The clean sound, wide frequency response (10Hz–50kHz), and high signal-to-noise ratio (>90dB) deliver excellent clarity for music, movies, and gaming.

Item dimensions L x W x H: 19 x 4 x 13 inches


Manufacturer: MUSYSIC


Maximum Supply Voltage: 230 Volts (AC)


Minimum Supply Voltage: 115 Volts (AC)


Mounting Type: Rack Mount


Maximum Supply Voltage: 230 Volts (AC)


Minimum Supply Voltage: 115 Volts (AC)


Mounting Type: Rack Mount


Number of Channels: 2


Output Power: 2200 Watts


Maximum Output Power: 4500


Item Dimensions: 19 x 4 x 13 inches


Material Type: Aluminum


Manufacturer: MUSYSIC


Model: SYS-4500


Brand Name: MUSYSIC


Global Trade Identification Number: 08


Part Number: SYS-4500


Item Weight: 18 Pounds


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Power is good
Size: 4500 Watts
I have owned this for a few months now and I have no regrets about buying it but I found that it needs a hotter signal to get it to the wattage point so I added a nobsound direct e6 tube preamps which I personally use in my home theater setup because the class d amps need more analog input to give them a warm sound and not so harsh on the higher frequencies and midrange frequencies are a lot better imho so I use them in my entire system all 9.1.4 so I don’t use my Denon AVR amps at all and the sys 4500 fit my old school DCM tf350s speakers very well because they are a 88db speakers and they need power and the amp fits the need and with a good amount of power left to boot. I am not sure how much power they are using but I am not able to get the amp pass 12 o’clock and at reference volume I can’t listen to them at this volume very long. I bought this amplifier because my speakers were starving for power and boy it definitely feeds them and I wasn’t expecting this Musysic SYS 4500 to work as well as it does but it works . I don’t know if I got the better built amplifier or what but it works great. The tube preamps definitely help with the sound and I’m sure it wouldn’t be able to produce the same sound without them. My room is a partly open concept but I haven’t been able to get the sound that I wanted until now so I’m pleased with the amp and I thought I would hate the blue led lights but I never seen them light up other than the time I set it up and so far it’s been light free even at high impact moments. My speakers are around 28 to 35 hz which is the other reason I why I bought the amplifier because of its ability to reach high 50k according to the specs weather that is true or false I don’t know , what I do know is that my speakers are now awake and that’s what I have been searching for. Overall it is a very good amplifier and I have no complaints except the fans are a little loud and I may replace them if my rack stays in the room which I have been working on moving it to my garage. Finally thought about the amplifier i know that having a dedicated outlet would be a great idea and it wouldn’t have to suffer from lack of power , so buy one and you are not happy with it then you can return it. BIG PLUS in my book even though it’s not perfect. ... show more
Reviewed in the United States on April 14, 2023 by Rev M.

  • Exceeded my expectations. Exceeded my expectations.
Size: 4500 Watts
I bought this to use with my keyboard setup. I was using a self powered speaker but decided I wanted to go stereo. The speaker I was using is a discontinued item and I couldn’t find another one like it so I decided to used my passive Kustom speakers with an amp. Of course it doesn’t put out 4500 watts and anyone who expects that has unrealistic expectations. An amplifier that puts out 4500 watts would be unusable in your home as it would be constantly tripping breakers. Realistically it puts out about 550 watts RMS (275 watts per channel) at 8 ohms which is all the power I’ll ever need. Of course if you need more power it can be used at 4 or even 2 ohms. But if I don’t need that much power I don’t see the point in working my amp that hard. The fans are a little loud, but if they will keep my amp running cool I can live with that. The sound quality is excellent without any humming or buzzing. I would definitely recommend this to a friend. ... show more
Reviewed in the United States on January 25, 2026 Reviewed in the United States on January 25, 2026 by Louiethelizard

  • Worth the investment especially for any new enviroment setting A/V equipment
Size: 4500 Watts
I bought 5 of these Power amps for our church sound system and let me tell you they can hang with the best of them---I do the suggested monthly vent blow out and I have not had an issue in 4 years
Reviewed in the United States on March 24, 2026 by SoundMan D

  • Looked nice but no sound
Size: 4500 Watts
Looks like a nice unit, turned power on power light came on, but no sound. Tried switching from the XLR to the1/4" inputs and still no sound. Connected back to my QSC and had sound. I was very disappointed since I was doing a music festival and needed the extra amp.
Reviewed in the United States on August 16, 2025 by Curt Karch

  • I like it
Size: 4500 Watts
UPS played ping pong with the thing for 8 days before I got it. Spent 2 hours stretching the rack to put it in to find out it wouldnt power up. Yanked the top off to find out a plug came loose from the motherboard. Lots of good high end. Now I need to upgrade the sub amp. Thinking about getting another one. Need to check out the freq range for the main outs. It does have a sub out, but I have not done my homework to find out if it is powered or line out ... show more
Reviewed in the United States on February 15, 2019 by Jeff Gilbert

  • The value.
Size: 4500 Watts
It's a great power amp for the price! Thank you.
Reviewed in the United States on April 8, 2026 by rudy alaniz

  • Is GOOD
Size: 4500 Watts
Is verily good
Reviewed in the United States on April 11, 2026 by Timoteo Garcia

  • Very good power for the price
Size: 4500 Watts
I have this powering 2 18” Lanzars. It surprises me for the price how good it sounds.
Reviewed in the United States on October 25, 2025 by Roger Miller

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