Summit Hi-Fi AD-2500PA Audiophile Amplifier 2X500W 8Ω/2X700W 4Ω

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  • Regular price $1,449.00


The AD-2500 power amplifier is the end result of many years of experience designing and refining audiophile power amps. Whether you're watching a movie or listening to live concert the AD-2500 amplifier will give you a new level of audio realism with exceptional sounding with our short signal path Class A/B output & efficiency of the Optimized Class “H” Technology.

New AD-2500 power amplifier presents the latest advancements in amplifier technology. The AD-2500 is built to the strict quality and performance standards set by Summit Hi-Fi & ToneWinner. We’re proud to offer you this exceptional audio component that will bring you many years of enjoyment and dependability.

Techinal Specs

Speaker Output Connections: Audiophile grade, gold plated, 2-way binding posts.

 Trigger: Trigger Input: 5 – 12 V (AC or DC); <10 mA input current required.

 Power Output :

 500 watts RMS per channel, two channels driven into 8 Ohms, at <0.1% THD.

 700watts RMS per channel, two channels driven, into 4 Ohms, at <0.1%THD.

 1000watts RMS, per channel, one channel driven,  into 4 Ohms, at <0.2%THD.

 Power Bandwidth (at rated power; 8 Ohm load): 10 Hz to 20 kHz (± 0.1dB).

 Broad Band Frequency Response: 5 Hz to 50 kHz  -2 dB.


 Signal to Noise Ratio (8 Ohm load):

 ≥110dB, ref FTC rated power, unbalanced input (A-weighted).

 ≥90dB,  ref 1 watt,  unbalanced input (A-weighted).

 Minimum Recommended Load Impedance (per channel): 4 Ohms.

 (which equals one 4 Ohm load or two paralleled 8 Ohm loads).

 Damping Factor (8 Ohm load): > 500.

 Input Sensitivity (for rated power; 8 Ohm load): 2.1V

 Gain: 29.5dB.

 Input Impedance:

 10 KΩ (balanced). 



  1. SN>110dB(A-weighted)
  1. THD +:≤ 0.01% (1KHz, normal working condition)
  1. Frequency Response: 5Hz~56KHz (+1/-3dB)
  1. Power Output: L+R: 500Wx2 (8ohm, 1KHz, THD=0.1%)
  1. Rated Load Impedance: 8Ω
  1. Minimum EMF: 2V
  1. Gain: 29.5dB
  1. Unit size: 17 W x16.5D x 7H

9 Unit weight: 50.71lbs

Customer Reviews

Based on 4 reviews
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Great amp at a terrific price