Parasound A23PLUSSIL - User Manual

5 Unpacking Your A 23+ & Placement Guidelines Unpacking Your A 23+ Carefully remove your A 23+ from its shipping carton and locate the enclosed accessories: • AC power cord • A 12V trigger wire for auto turn on. It has a mono 3.5 mm mini plug at each end. While you are unpacking your A 23+, insp...

8 Bridged Mode Bridged operation configures the Left and Right channels to function as a single channel higher power amplifier to drive a single speaker. W hen an A 23+ is in Bridged Mode it provides far greater power output than the sum of its left and right channels’ power output. Please note that...

9 Speaker Connections Speaker Terminals The A 23+ speaker terminals accept speaker wires terminated with banana plugs, spade connectors or up to 10 AWG bare wire. Bare Speaker Wire Ends If you plan to connect your speaker cables with bare wire ends, use a wire stripper to remove just enough insulati...

10 Turn On Options The setting of the rear panel Turn On Options switch determines how the amplifier turns on and off. Setting the Turn On Options switch to Audio or 12 V disables the A 23+’s front panel Power button. There are three positions for this switch: Manual: When the Turn On Options switch...

12 Technically Speaking Balanced and Unbalanced Lines Recording and broadcast studios use balanced connections exclusively because of their inherent ability to reject noise and hum, thus assuring the best sound. Certain high quality preamplifiers and surround controllers built for residential use ut...

13 Parasound A 23+ Design Overview Circuit Designed by John Curl Parasound design consultant John Curl has been a legend among audiophiles and electronic engineers for decades. He pioneered measurements to correlate musical accuracy with the materials used in parts, worked with world-class touring c...

16 Problems and Remedies Unit will not turn on • Check the setting of the Turn On Options switch. (The front panel On-Off button will be disabled if this switch is set to Audio or 12 V) • If using Audio Turn on, try increasing the sensitivity of the audio trigger by turning the audio threshold knob ...

17 Are You Having Difficulty? Repair or Service Call your Parasound dealer first. If the dealer can’t help you with your problem we encourage you to call Parasound’s Technical Service Department at 415-397-7100 , Monday - Friday, 8am - 4pm Pacific Time. We can suggest other diagnostic tests you can ...

18 Total Gain 29 dB Input Sensitivity for 28.28 V Out (8 Ω Load) Unbalanced: 1 V Balanced: 1 V per leg S/N Ratio > 112 dB, input shorted, IHF A-weighted > 107 dB, input shorted, unweighted Damping Factor > 800 at 20 k Hz DC Trigger Requirements +9 Vdc to +12 Vdc, 5 mA Audio Trigger Requirem...