ATI AT1505 Five Channel Power Amplifier

Why Buy New is pleased to offer for sale, this brilliant ATI AT1505 Five Channel Power Amplifier.

It has been professionally repackaged to ensure safe delivery and comes with a power cable.

PLEASE NOTE: THE STAND SHOWN IN THE IMAGES IS NOT INCLUDED WITH THE PURCHASE.

This has been tested and is in full working order. It is sold with a 3 month warranty.

The cosmetic condition is good. There are some minor marks. Please see the condition in the images.

FREE national courier delivery.

Why Buy... from us?
Because all of our items go through a full inspection, get serviced (if required), PAT tested for electrical safety, deep cleaned and all come with a warranty. We are 100% committed to customer care and are always on hand pre or post-delivery for technical help and advice.

Overview

The ATI AT1505 is a robust five-channel power amplifier designed for both home theatre and multi‑channel audio systems. Featuring monoblock-style circuitry and solid build quality, it delivers dependable performance across all five channels.

Key Specifications

• Power Output: 150 W per channel into 8 Ω; 250 W into 4 Ω
  
• Frequency Response: 20 Hz – 20 kHz (±0.1 dB at 1 W)
  
• Total Harmonic Distortion (THD): < 0.03% at full power
  
• Damping Factor: ~1000 (or >400 per seller specs)
  
• Gain: 28 dB
  
• Input Sensitivity: ~1.0–1.2 V
  
• Signal‑to‑Noise Ratio: ≥ 100–120 dB (A-weighted)
  
• Load Impedance: 4 Ω – 16 Ω supported
  
• Crosstalk: > 90 dB between channels
  
• Slew Rate: ~30 V/μs
  
• Input Impedance: ~28 kΩ
  
• DC Offset: < ±5 mV
  
• Transformer: Massive ~2 kVA toroidal
  
• Construction: Rugged steel chassis, oversized heat sinks, toroidal transformers, Mil‑Spec PCBs
  
• Connectors: Gold-plated five-way binding posts, unbalanced RCA inputs
  
• Dimensions: 19″ rack width × ~178 mm height × 406 mm depth
  
• Weight: ~33 kg