ATI Amplifier Technologies AT1823

ATI AT1823, the ultimate multi-channel power amplifier

The ATI AT1823 is a top-of-the-line power amplifier that delivers an exceptional audio experience. Whether you’re a passionate audiophile or a home theater enthusiast, this amp is designed to meet your most demanding needs. The ATI AT1823 can power any speaker with its 200W per channel output at 8 ohms. This considerable power ensures that your speakers are driven with precision and strength, even at high volume levels. Moreover, this amplifier delivers 300W per channel at 4 ohms, making it a versatile choice for a wide range of speaker configurations.

Toroidal power supply for superior sound quality

One of the remarkable features of the ATI AT1823 is its oversized toroidal power supply. Equipped with a silicon steel core and bi-filar windings, this power supply guarantees very low noise and crosstalk. As a result, you benefit from accurate, transparent, and detailed sound reproduction. Additionally, each channel has its own rectifier circuit and high-capacity capacitors, ensuring a significant current capacity to respond with energy and dynamics to the preamplifier’s demands.

Soft Turn-on Technology

The ATI AT1823 amplifier is equipped with Soft Turn-on technology, which allows for a gradual power-up of the amp. No more tripping circuit breakers or dimming lights when turning on the amplifier. Thanks to this feature, you can enjoy an uninterrupted and undisturbed audio experience from the very first note.

Flexible connectivity for easy integration

The ATI AT1823 offers versatile connectivity to suit your needs. It is equipped with unbalanced RCA and balanced XLR inputs for each channel. This variety of connection options allows you to adapt to any home theater pre-amplifier equipped with pre-out outputs. Furthermore, the amp has a Trigger connector for automatic power-on in sync with the associated preamp. With such connection flexibility, you can easily integrate the ATI AT1823 into your existing audio system.

User-friendly design for practical use

The ATI AT1823 is designed to provide optimal user comfort. It features a power switch on the rear panel for easy access, as well as a power button on the front panel for convenient manual operation. Additionally, the amplifier uses a soft start technology, gradually powering up to avoid any sudden power surges. This way, you can turn on your amplifier with peace of mind, without worrying about damaging your speakers or audio system.

The ATI AT1823 also incorporates an optically coupled protection system, which ensures galvanic isolation for optimal signal integrity. This reduces the risk of unwanted electrical interference, guaranteeing exceptional sound quality.

Technical Specifications

Configuration

• Number of channels: 3
• Class AB amplification

Audio Performance

• Output power:
  • 8 Ω - Full bandwidth: 200 W RMS
  • 4 Ω - Full bandwidth: 300 W RMS
• Frequency response: +0, -0.5 dB, 5 Hz to 20 kHz
• Signal-to-noise ratio: > 120 dB
• Total harmonic distortion + noise (20 Hz - 20 kHz): < 0.03%
• Intermodulation distortion: < 0.03%
• Crosstalk: > -100 dB from 20 Hz to 20 kHz
• Slew rate: > 50 V / μs

Electrical Characteristics

• Input sensitivity - 8 Ω: 1.6 V
• Recommended load impedance: 8 Ω nominal, stable at 4 Ω
• Damping factor: > 400 from 10 Hz to 400 Hz
• Voltage gain:
  • (RCA inputs): 28.5 dB ± 0.5 dB
  • (XLR inputs): 27.5 dB ± 0.5 dB
• Input impedance: 28 kΩ nominal
• Output DC offset: < ± 15 mV

Connectivity

• 3 balanced XLR audio inputs
• 3 unbalanced RCA audio inputs
• 1 pair of speaker outputs (per channel)
• 1 trigger connector

Physical Characteristics

• Power supply: 117 V AC or 230 V, 50/60 Hz
• Standby power consumption: ≤ 1 W (120 V AC), ≤ 0.5 W (240 V AC)
• Dimensions (W × H × D): 432 × 196 × 372 mm
• Net weight: 23.7 kg
• Weight with packaging: 26.4 kg