ATI Amplifier Technologies - AT4000 - Class AB Power Amplifier
![]() |
![]() |
![]() |
Retail Price: $2,995.00
Your Price: $2,795.00Each ATI piece is custom built to order. Please allow approximately 2 weeks for manufacturing and shipping. For purchase info please Message us, or call 877-370-1972. Thank you!
Discount:

Shipping:

ATI Amplifier Technologies - AT 4000 Series - Class AB Power Amplifier
If you're searching for an audio amplifier that can handle even the most demanding audio setups, the ATI Amplifier Technologies AT4000 Class AB Amplifier is an excellent choice. This multi-channel stereo amplifier offers a massive 300 watts per channel at 8 ohms, providing plenty of power to drive even the most challenging audio systems with ease.
But the AT4000 isn't just about power - it also boasts advanced features to optimize your listening experience. The dual-mono power supply ensures optimal performance, while the balanced and unbalanced inputs provide versatility and compatibility with a range of audio sources. The high-current output stage ensures that every detail of your audio is faithfully reproduced, without any distortion or compromise.
If you're a professional audio engineer, the AT4000's rack-mountable design makes it an ideal choice for professional installations. But even if you're just a music enthusiast, this amplifier is sure to impress with its high-quality construction and attention to detail. With its advanced design, powerful performance, and versatile features, the ATI Amplifier Technologies AT4000 Class AB Amplifier is the ultimate choice for uncompromising audio performance.
Note: We can only ship to addresses within the USA. Visit ATI-AMP.com for a list of International Dealers.
FEATURES:
- Multi-channel stereo amplifier
- Advanced Class AB amplifier design
- Dual-mono power supply
- Balanced and unbalanced inputs
- High-current output stage
- Rack-mountable design
SPECIFICATIONS:
Power Output: | 300W/Channel at 8 ohms |
THD+N: | <0.05% |
Signal-to-Noise Ratio: | >126dB |
Input Impedance: | 100k Ohms balanced, 50k Ohms unbalanced |
Gain: | 29 dB |
Input Sensitivity: | 1.4V |
Frequency Response: | 5Hz to 60kHz (±0.25dB) |
Dimensions: | H 7" x W 17" x D 19" (H 178mm x W 432mm x D 483mm) |
Weight: | 84 lbs (38.1kg) |