A 23+ Features 125 → 160 Watts (8Ω) 225 → 240 Watts (4Ω) 400 → 500 Watts (bridged) Filter cap: 40,000 uF →54,400 uF Crosstalk (20kHz): 63dB → 70dB Transformer size: 1.0 kVA → 1.1 kVA Refined Halo cosmetic with aluminum end caps & gold highlights Updated rear panel with heavy duty speaker terminals from HINT 6 Upgraded internal gold on gold audio connections Updated auto turn on circuit All Features 160 watts x 2 @ 8 Ω RMS, both channels driven 240 watts x 2 @ 4 Ω RMS, both channels driven 500 watts x 1 @ 8 Ω, in bridged mode Circuitry designed by legendary John Curl High bias Class A/AB operation 45 amperes peak current per channel Stable with speaker impedance dips below 2 Ω Balanced inputs with discrete circuits Heavy-duty 24k gold-plated 5-way speaker binding posts Gold-plated RCA input & loop output jacks Direct-coupled signal path, no capacitors or inductors DC Servo and relay protection circuits AC turn-on inrush surge protection with relay bypass JFET input stage, MOSFET driver stage 12 beta-matched 15 ampere, 60 MHz bipolar output transistors 1.1 kVA shielded toroid transformer w/ independent windings for each channel Independent power supplies for input stage, driver stage and output stage 54,400 µF filter capacitors for output stages Full power is rated all the way down to 5Hz for unrestricted low-end bass Harris hyper-fast soft-recovery bridge diode rectifiers Automatic turn-on by 12 V trigger or audio sensing 2 rack space chassis with rear carry handles Rack mount hardware available separately Available in silver or black Specs Power Output – Stereo Mode (0.06% THD)160 watts x 2, 8 Ω both channels driven240 watts x 2, 4 Ω both channels driven Power Output – Stereo Mode (0.9% THD)210 watts x 2, 8 Ω both channels driven300 watts x 2, 4 Ω both channels driven Power Output – Bridged Mode (0.06% THD)500 watts x 1, 8 ΩBridged 4 Ω operation is not recommended Power Output – Bridged Mode (0.9% THD)600 watts x 1, 8 ΩBridged 4 Ω operation is not recommended*All Power measurement are at 120 VAC,RMS continuous power, full audio band (20 Hz - 20 kHz) Current Capacity45 amps peak, per channel Slew Rate> 130 volts per microsecond Frequency Response5 Hz - 100 kHz, +0/-3 dB20 Hz - 20 kHz, +0/-0.25 dB Total Harmonic Distortion (THD)< 0.06 % at full power< 0.03 % at typical listening levels IM Distortion< 0.04 % TIMUnmeasurable Inter-channel Crosstalk> 85 dB at 1 kHz> 70 dB at 20 kHz Input ImpedanceUnbalanced: 33 kΩBalanced: 66 kΩ,(33 kΩ per leg) Total Gain29 dB Input Sensitivity for 28.28 V Out (8 Ω Load)Unbalanced: 1 VBalanced: 1 V per leg S/N Ratio> 112 dB, input shorted, IHF A-weighted> 107 dB, input shorted, unweighted Damping Factor> 800 at 20 Hz DC Trigger Requirements+9 Vdc to +12 Vdc, 5 mA Audio Trigger Requirements2 mV - 10 mV XLR Pin Identification1 = Ground (Shield)2 = Positive3 = Negative (Return) DimensionsWidth: 17-1/4" (437 mm)Depth: 15"-1/4" (388 mm)Depth, with cables 17" (432 mm)Height, with feet: 4-1/8" (105 mm)Height, without feet: 3-1/2" (89 mm), 2U Net Weight27 lb. (12.2 kg) Shipping Weight34 lb. (14.4 kg) Power RequirementStandby:
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