Series - AP4K

2x 1800w per channel Amplifier

Capable of delivering 1800 watts per channel into either a 2 or 4 ohm load, Yorkville Sound's new AudioPro AP4K uses proven Class-H technology and advanced protection circuitry to provide unmatched long term reliability in the field.

Features

  • Delivers 1800 watts per channel into either 2 or 4 ohm load
    (3600 watts bridged into 4 or 8 ohms)
  • Proven Ultra Reliable Class-H Design
  • Easily Handles Reactive Phase Shifted Loads
  • Advanced Protection Schemes Including DC Current, Load, Thermal & Breaker Protection
  • Transparent User-Defeatable Peak Limiter Circuits
  • Soft Turn-On Circuit Protects Speakers and Prevents Nuisance Breaker Tripping During Power Up
  • Concise Front Panel Metering and Status LED's
  • Speakon™ and Binding Post Outputs
  • Balanced XLR and ¼-inch TRS Inputs
  • All-Steel Chassis Construction
  • Made in Canada

Overview

An impedance mode switch on the back panel of the amplifier allows the user to select full output power into either a two or four ohm load for maximum application flexibility. This means this compact two rack space amplifier can deliver up to 3600 watts of clean, pure power into either 4 or 8 ohm loads (bridged), making it a perfect solution for virtually any touring live sound, club system or installation.

The internal signal path has been optimized and a toroidal transformer is used in the AP4K design - both serving to reduce hum and noise in practical real-world applications. It's three-tier Class-H design approaches efficiency normally associated with Class-D technology; yet provides the superior transient response and low distortion of the best analog designs.

Specifications

Amplifier class Class-H
Continuous Average Power @ 8 Ohms BCD (Watts) 600 (x2)(2ohm mode)/1000 (x2)(4ohm mode)
Continuous Average Power @ 4 Ohms BCD (Watts) 1000 (x2)(2ohm mode)/1800 (x2)(4ohm mode)
Continuous Average Power @ 2 Ohms BCD (Watts) 1800 (x2) (2ohm mode)/ NA in 4ohm mode
Continuous Average Power Bridged BCD (Watts) 3600 @ 4 ohms /3600 @ 8 ohms
Burst Average Power @ 8 Ohms BCD(Watts) 1000 (x2)(2ohm mode)/1800 (x2)(4ohm mode)
Burst Average Power @ 4 Ohms BCD (Watts) 1800 (x2)(2ohm mode)/3500 (x2)(4ohm mode)
Burst Average Power @ 2 Ohms BCD (Watts) 2500 (x2)(2ohm mode)/ NA
Burst Average Power Bridged BCD (Watts) 5000 @ 4 ohms / 7000 @ 8 ohms
Frequency Response (Hz, +/- 1dB) 20-20,000
Hum and Noise (un / Aweighted -dB) -100/ -115
THD -1kHz- 4 OHMS 0.01
THD - 20Hz-20kHz, 4 Ohms less than 0.1%
Slew Rate (V/uS) 25
Slew Rate Bridged (V/uS) 50
Damping Factor (30 Hz - 400 Hz @ 8 Ohms) 600
Crosstalk (1kHz / 20Hz-20kHz) -75 / -60 dB
Input Impedance - Bal/Unbal (Ohms) 10,000/5,000
Input Sensitivity (Vrms) For Full Power Out 1.0V (2ohm mode) / 1.4V(4ohm mode)
Max Voltage Gain (dB) 36
CMRR @ 60Hz (min/typ) 48/56 dB
Stereo / Bridge (S/B) S/B
Protection DC, Load, Thermal
Limiter Peak
High Pass Filter 50Hz, 18dB Octave
Cooling Internal Fans
Cooling Path Front to Rear
Inputs - XLR 2
Inputs - 1/4" Jacks 4
Outputs - Speakon 4-pin 2
Outputs - Binding Post 2
Power Consumption (typ/max) 1130/1800 Watts
Rack Spaces 2
Transformer Type Toroidal
Exterior Finish Baked, Black Painted
Dimensions (DWH /D fm ears, inches) 16.5 x 17.3 x 3.5 x 14.9
Dimensions (DWH /D fm ears, cm) 41.5 x 43.9 x 8.9 x 37.85
Weight (lbs / kg) 41 / 18.5

Specifications subject to change without notice