The Halo A 21 is an extraordinary amplifier for your home theater or for use in a dedicated stereo system. We reduce unwanted noise by encasing the massive toroid power transformer in a steel cap to contain its magnetic field. Premium fast-recovery filter capacitors provide enormous power reserves for transient peaks, while double-sided epoxy circuit boards provide superior grounding. The A 21 is an engineering triumph built for years of listening pleasure.

Features & Specifications :

- Continuous power output 20 Hz - 20 kHz :    250 watts RMS x 2,8 Ω ; 400 watts RMS x 2,4 Ω    750 watts RMS mono,8 Ω - Current capacity : 60 amperes peak per channel - THX Ultra2 certified ; High bias Class A/AB operation - Balanced XLR & unbalanced RCA inputs, RCA loop outputs

- Auto turn-on by 12v trigger or audio signal ; 12v trigger out - Rear mounted gain controls, ground lift switch,carry handles - Power bandwidth : 5 Hz - 100 kHz,+0/-3 dB at 1 watt - Total harmonic distortion : < 0.2 % at full power - Signal to noise ratio : > 112 dB,input shorted,IHF A-weighted - Dimensions : 17-1/4" w x 19-1/8" d x 7-5/8" h,4u without feet