Yorkville Sound

AP4020 2x1200- Watt @ 2 Ohms Power Amplifier

SKU: # 55886   |   Model: # AP4020   |    Product Reviews2 Reviews  Write a Review

AP4020 2x1200- Watt @ 2 Ohms Power Amplifier
 This product is no longer available.
The powerful AP4020/AP4040 weigh a comfortable but solid 40/43 lbs. and occupy only two rack spaces. They deliver 1200 Watts per channel (AP4020 @ 2 Ohms, AP4040 @ 4 Ohms). The AP4020/4040 power amplifiers also incorporate a 'soft turn-on' circuit which eliminates nuisance breaker-tripping on power-up.

AudioPro amplifiers feature advanced protection schemes including DC current, load, thermal and breaker protection as well as a user-defeatable peak limiter that is transparent below clipping levels. A 'soft turn-on' circuit eliminates damage to attached components and prevents nuisance breaker-tripping. The computer-optimized (Silentfan) front-to-back heat dissipation system incorporates ultra-quiet, variable-speed internal fans and are designed to ensure that excessive thermal stress will not occur. For ease of maintenance and to ensure efficient cooling, the amplifiers are supplied with long-life, faceplate-mounted, user serviceable, air intake filters. Front panel Power, Protect, Activity and Clip LED's are bright and easy to see and all knobs and handles are recessed for safe, easy transportation.

The internal signal path has been optimized and a toroidal transformer is used - both of which serve to reduce hum and noise while keeping weight to a minimum. The two-tier power conversion of the AudioPro AP-Series amplifiers approaches efficiency levels normally associated with switching power supply technology; yet provide the superior transient response and low distortion of the best analog designs. Inside an AP4020 AudioPro amplifier designs, while unique, are conservative with regard to the power handling capabilities of the output devices. To further assure trouble-free operation, all AudioPro amplifiers undergo a thorough computer-monitored, temperature-cycled, burn-in period to test for any deviation from design parameters.

The back panel features Speakon and binding post outputs as well as balanced XLR & 1/4" TRS inputs. The peak limiter, subsonic filter, mono/stereo/bridge mode and ground lift switches are also mounted on the back panel. The unique Yorkville Impedance Mode switch (AP1020 & AP2020), also located on the back panel, allows the user to select full output power into two or four ohms for maximum application flexibility.

Features:
• Delivers 1200 watts per channel at 2 ohms
• (2400 watts bridged into 4 ohms)
• Proven Ultra Reliable Conventional Designs
• 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
• 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 and -inch TRS Inputs
• All-Steel Chassis Construction

Specifications:
• Amplifier class: H
• Continuous Average Power @ 8 Ohms BCD (Watts): 475 (x2)
• Continuous Average Power @ 4 Ohms BCD (Watts): 750 (x2)
• Continuous Average Power @ 2 Ohms BCD (Watts): 1200 (x2)
• Continuous Average Power Bridged BCD (Watts): 2400 @ 4 Ohms
• Burst Average Power @ 8 Ohms BCD(Watts): 625 (x2)
• Burst Average Power @ 4 Ohms BCD (Watts): 1200 (x2)
• Burst Average Power @ 2 Ohms BCD (Watts): 2175 (x2)
• Burst Average Power Bridged BCD (Watts): 4350 @ 4 Ohms
• Frequency Response (Hz, +/- 1dB): 20-20,000
• Hum and Noise (un / Aweighted -dB): 0.971698113207547
• THD -1kHz- 4 OHMS: 0.0001
• 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): 20,000/10,000
• Input Sensitivity (Vrms) For Full Power Out: 1.4 V
• Max Voltage Gain (dB): 33
• CMRR @ 60Hz (min/typ):48/56 dB
• Stereo / Mono / Bridge )S/M/B): S/M/B
• Protection: DC,Load,Thermal
• Limiter: Peak
• High Pass Filter: 40Hz, 12dB Octave
• Cooling: Internal Fan
• Cooling Path: Front to Rear
• Fan Filter: User Serviceable
• Inputs - XLR: 2
• Inputs - 1/4 IN Jacks: 2
• 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): 19 x 17.3 x 3.5 x 16.2
• Dimensions (DWH /D fm ears, cm): 48.3 x 43.9 x 8.9 x 41
• Weight (lbs / kg): 41 / 18.6

Q & A


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Reviews


3.237.51.235
claudebot
Great amps. Absolutely bullet proof 0 of 0 customers found this review helpful
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Product Experience   I own it
Closest Store   Grande Prairie, Alberta
Got one of these out of an old church, had I kid you not 2-3 pounds of dirt in it. I removed the cover Blew it out with air plugged it In hooked it up and it rocks
Posted by anonymous on Jun 6, 2021
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AP4020 Yorkville Power Amp 4 of 6 customers found this review helpful
Features  
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Value  
Overall  
Product Experience   I own it
Closest Store   Port Coquitlam, British Columbia
This is a great sounding amp and plenty loud. Unfortunately, it also runs loud. Has a very loud audible fan motor that is pretty unbearable. Going to check and see if it's normal and if so, return it and get one that isn't so loud. Loud fans mean soon to be worn out bearings and equipment downtime !!
Posted by Ron on Jun 12, 2013
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Rental rates


This product is normally available for rental. Please contact your preferred location for further information.

1 Day from $13.00

1 Week $25.00

1 Month $50.00

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A warranty can be a very important factor when making a buying decision. Because repairs can be very expensive in terms of parts and labour costs, manufacturers usually only provide one year limited warranties that generally only cover items that malfunction due to a manufacturer’s defect. With an important purchase such as a musical
instrument or piece of studio gear, however, many people want to have the peace of mind in knowing that their investment will be protected should the product no longer be performing at 100%.

Because of this, Long & McQuade provides our customers with a FREE one-year Performance Warranty on most of our products. The Long & McQuade Performance Warranty supplements the manufacturer’s warranty to ensure that our customers receive complete “no hassle” warranty coverage within their first year.

How does the Long & McQuade Performance Warranty differ from most manufacturers' warranties?
  • Performance Guarantee: Normal wear and tear is covered, so your product will be performing as well as the day you purchased it for the entire duration of the coverage. Band and Orchestral Performance Warranty does not include replacing pads or cleaning for woodwind instruments, unless deemed necessary by our repair staff. Ultrasonic cleaning for brass instruments will be provided if deemed necessary by our repair staff, but is not routinely offered under the Performance Warranty.
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Long & McQuade reserves the right to restrict the purchase of additional years of Performance Warranty. Used products come with a 3-month Long & McQuade Performance Warranty. Some products (i.e. computers, software, cymbals and other items) are covered only by the manufacturer‘s warranty. Consumables (i.e. strings, reeds, drum sticks, batteries, tubes, cross faders) are excluded as they are designed to be replaced. Cosmetic Damage, Accidental Damage, or problems caused by Humidity or Temperature Issues are not covered. Speakers damaged by overpowering are generally not covered. Our coverage does not provide compensation for loss of use. As of June 2018 the Performance Warranty is no longer transferable. The warranty is only valid in Canada.

Purchasing additional years of coverage

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If you are interested in receiving this coverage for longer than one year, you have the option of purchasing additional years of the Performance Warranty. The pricing is as follows:

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