Yorkville Sound

General:
AudioPro AP-Series power amplifiers are built to withstand the many rigors and demands of professional audio whether in clubs, in touring concert systems or in any type of installation up to and including the dynamic digital demands of theatre audio. And their performance is equally legendary. The culmination of Yorkvilles forty-plus years of design and manufacturing experience, AudioPro power amplifiers are the ideal choice when high fidelity, low noise, ample power headroom and detailed clarity are essential.

General Features:
Designed for continuous performance right down to and below their lowest impedance ratings
Easily drive reactive phase shifted loads
Advanced protection schemes including DC current, low-load, thermal and AC overload
Switch-defeatable peak limiter that is transparent below clipping levels
'Soft turn-on circuit eliminates damage to attached components and prevents nuisance breaker-tripping
Computer-optimized Silentfan front-to-back heat dissipation system
Long-life, faceplate-mounted, user serviceable, air intake filters
Front panel Power, Protect, Activity and Clip LED's
Speakon and binding post outputs
Balanced XLR & 1/4" TRS inputs
Impedance Mode switch (AP1020 & AP2020)
Sturdy all-steel construction
Baked-on, black finish
Reinforced rack-mount ears
Full 2-Year, no-fault North American Warranty

About the AP4020:
Designed for situations where 2-Ohm loads need to be driven, the AP4020 will deliver full continuous output,
1200 Watts per-channel, into that low load all night and day. And if you require 2400 Watts mono for subwoofers, the AP4020 can be bridged into as little as 4 Ohms. In addition, the switchable limiter prevents audible clipping while maintaining full output and a switchable 40Hz hi-pass filter helps reduce stage rumble. A thermally triggered fan and efficient front-to-back heatsinking then help to ensure that things stay cool.
Optional accessory; #8379 replacement air filters.

Specifications:
Amplifier class - H
Continuous Average Power @ 8 Ohms BCD (Watts)- 475 per-channel
Continuous Average Power @ 4 Ohms BCD (Watts)- 750 per-channel
Continuous Average Power @ 2 Ohms BCD (Watts)- 1200 per-channel
Continuous Average Power Bridged @ 4 Ohms BCD (Watts) - 1200
Burst Average Power @ 8 Ohms BCD (Watts) - 625 per-channel
Burst Average Power @ 4 Ohms BCD (Watts) - 1200 per-channel
Burst Average Power @ 2 Ohms BCD (Watts)- 2175 per-channel
Burst Average Power Bridged at 4 Ohms BCD (Watts) - 4350
Frequency Response (Hz, +/- 1dB) - 20-20,000
Hum and Noise (un / Aweighted, dB) - -103 / -106
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) - -75dB/-60 dB
Input Impedance - Bal/Unbal (Ohms) - 20,000/10,000
Input Sensitivity (Vrms) For Full Power Out - 1.4V
Max Voltage Gain (dB) - 33
CMRR @ 60Hz (min/typ) - 48/56 dB
Stereo / Mono / Bridge (S/M/B) - S/M/B
Non-Defeatable Protection - DC,Load,Thermal
Defeatable Protection - Limiter Peak
Selectable High Pass Filter - 40Hz @ 12dB Octave
Cooling- Internal Fan, thermally regulated
Cooling Path - Front to Rear
Fan Filter - User Serviceable & Washable
Inputs - XLR x 2, 1/4" TRS x 2 in total
Outputs - Speakon 4-pin x 2 & Binding Post Set x 2
Power Consumption (typ/max) - 1130/1800 Watts
Rack Spaces - 2
Transformer Type - Toroidal
Exterior Finish - Baked Charged Powder Paint, black
Dimensions (DWH/D from ears, in.)- 19 x 17.3 x 3.5/16.2
Dimensions (DWH/D from ears, cm) - 48.3 x 43.9 x 8.9/41
Weight (lbs/kg) - 41/18.6