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YORKVILLE AP-6040
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AP Series OverviewAudioPro AP-Series power amplifiers are built to withstand heavy-duty live sound reinforcement_comma_ touring systems or installation. They are the culmination of Yorkville’s forty years of design and manufacturing experience for the music industry_comma_ and include features most in demand by audio professionals. They are the ideal choice when high headroom and low distortion are needed_comma_ especially when reproducing the dynamic range and clarity of today’s digital recordings. Yorkville’s AudioPro AP-Series power amplifiers are designed for rock solid performance right down to and below their lowest impedance ratings. An ‘impedance aware’ design strategy deals with the realities of driving typical reactive speaker loads and they address the associated problems such as thermal shutdown_comma_ inductive snap-back_comma_ and premature current limiting. They will easily drive reactive phase shifted loads with no difficulty - even though they are still fully protected from accidental short circuits. AudioPro amplifiers feature advanced protection schemes including DC current_comma_ load_comma_ 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_comma_ 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_comma_ the amplifiers are supplied with long-life_comma_ faceplate-mounted_comma_ user serviceable_comma_ air intake filters. Front panel Power_comma_ Protect_comma_ Activity and Clip LEDs are bright and easy to see and all knobs and handles are recessed for safe_comma_ 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. The back panel features Speakon™ and binding post outputs as well as balanced XLR & ¼ TRS inputs. The peak limiter_comma_ subsonic filter_comma_ mono/stereo/bridge mode and ground lift switches are also mounted on the back panel. The unique Yorkville Impedance Mode switch (AP1020 & AP2020)_comma_ also located on the back panel_comma_ allows the user to select full output power into two or four ohms for maximum application flexibility. Sturdy all-steel construction with a baked-on_comma_ black finish is used throughout and_comma_ for ease of integration_comma_ the amplifiers feature reinforced mounting ears and a compact two or three rack-space design. All AudioPro amps come with Yorkvilles standard two-year (even if you break it!) transferable warranty (valid in USA and Canada only). The Limiter Switch All AudioPro power amplifiers have a user defeatable limiter circuit switch located on the back panel_comma_ next to the input jacks. That limiter is there to protect high frequency loudspeaker components that could be damaged by even small amounts of clipping when an amplifier is being driven close to its maximum output into a full-range cabinet. When driving subwoofers at the maximum rated output power of the amplifier however_comma_ allowing a small amount of clipping at the output
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