YORKVILLE 2-Channel 1800 W Power Amplifier AP4K

The AP4K is Yorkville Sound’s flagship amplifier. This no-compromise, 2U powerhouse is our premier solution for virtually any touring or installed sound system. A rear panel switch selects 2Ω or 4Ω operation, and bridging the amp delivers up to 3600 watts of pure, clean power into 4Ω or 8Ω loads. The AP4K features a meticulously optimized signal path, with a toroidal transformer to reduce hum and interference. The 3-tier Class H design approaches the efficiency of Class D amplifiers while maintaining the superior transient response and low distortion of the best analog designs. With transparent limiting, advanced protection, all-steel construction, and exceptional sound quality, the AP4K is designed to excel in the most demanding conditions and power exceptional performances.

Features

• 2-Channel Class H Design
• 1800 W per Channel @ 2Ω or 4Ω
• 3600 W Bridged @ 4Ω or 8Ω
• Balanced XLR and 1/4" Inputs
• Binding Post and speakON® Outputs
• Short Circuit, DC, and Thermal Protection
• Soft Turn-On Circuit to Protect Speakers
• All-Steel Construction
• Made in Canada

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