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Full Power for Your Sound System!
The McGrey PA-4504 delivers 4x 450 watt RMS for powerful, low-distortion amplification suitable for any professional or semi-professional PA system. Thanks to robust Class-D technology, it impresses with high efficiency, low weight and a clear, dynamic sound — ideal for bands, DJs or fixed installations.
Reliable Performance - Everywhere
Whether in the club, rehearsal room or on stage, the PA-4504 provides precise reproduction across the full spectrum with a frequency response of 20 Hz to 20 kHz. The integrated fan guarantees reliable cooling even under high continuous load.
Professional Connections and Full Control
With balanced XLR inputs and outputs, Speakon-compatible speaker connectors and switchable input sensitivity (0.775 V or 1.0 V), the power amp integrates flexibly into any setup. LED indicators for signal, limit and operation give you a clear overview during live use.
Robust, Compact and Rack-Mountable
The sturdy metal chassis in 19" format is ideal for rack installation and, at just 3.5 kg, offers maximum portability. That makes the PA-4504 perfect for mobile DJs, bands or fixed installations.
Experience Reliable Power for Your Sound!
Features
- 4-channel power amp
- RMS power: 4x 450 Watt (@ 8 Ohm / 4 Ohm / 2 Ohm, full power already available at 8 Ohm)
- Frequency response: 20 Hz - 20 kHz
- THD+N: <0.03% at 8 Ohm, 1 kHz
- Signal-to-noise ratio: >95 dB
- Damping factor: >500
- Input sensitivity: switchable 0.775 V or 1.0 V
- Input impedance: 20 kOhm
- Inputs: XLR female, 3-pin
- Outputs: XLR male, 3-pin
- Speaker connectors: Speakon-compatible (2-pin)
- LED indicators: Ready, -32 dB, 0 dB per channel
- Operating modes: Stereo / Mono
- Output stage: Class D
- Protection circuits: short circuit, thermal, soft-start, DC protection, overcurrent compression, clipping compression
- Cooling: temperature-controlled fan (airflow from front to rear)
- Power supply: 240 V AC / 50-60 Hz
- Dimensions (W×D×H): 482 (19") x 185 x 48 (1 RU) mm
- Weight: 3.5 kg
Scope of delivery
- 1 x McGrey PA-4504 Power Amplifier
- 1 x Power Cable
Suitable accessories (Not included in the delivery.)
Specification
- Product number 00112721
- Number of channels 4
- Colour Black
- Height in U 1 U
- Power (Watts) 1800
Manuals
B-Stock Bargains.
This product is also available in the following condition:
Reviews
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A verification of the ratings has taken place as follows: Only customers who are registered in our online store and have actually purchased the product from us can submit a rating for the item in the customer account.
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Variant McGrey PA-4502 Power Amplifier 1U 2 x 450 Watt
This rating has been translated automatically. Original language
Variant McGrey PA-4502 Power Amplifier 1U 2 x 450 Watt
This rating has been translated automatically. Original language
My first test with it was to power two speakers rated at 150W RMS at 4 ohms.
And it did that without a hitch for several days.
I didn’t hear a thing from the fans, even though it was only about 1.5 meters away from me.
I can’t measure it, but my gut tells me the 450W is pretty close to the actual power.
This thing really packs a punch.
Questions about product
Question by Peter Markus on 17.02.2026
Hello, I have a question about performance. 4 x 450 watts at 8 ohms music, sine wave, RMS power? Thank you, regards Markus P.
Answer by Musikhaus Kirstein:
These are RMS values.
Question by uwe weiss on 25.11.2025
Hello, can you connect an 8 ohm subwoofer to 2 channels? if so, can the amp manage about 700 watts? would be surprised at the price. mfg Uwe.
Answer by Musikhaus Kirstein:
The amp delivers 450W RMS into 8 ohms.
Financing with ConsorsFinanz
You can finance your order in convenient monthly installments from a value of €100.00.
- 6 to 72 months term
- 0% financing for 14,08 € per month
