AUDIO ANALOGUE PURE CLASS A POWER AMPLIFIER Special Edition OWNER’S MANUAL MANUALE D’ISTRUZIONI Manual rev.1.
INTRODUCTION AUDIO ANALOGUE does not take any responsibilities in the following cases: Whenever the operational procedures related to the use and the maintenance of the equipment, as described in this manual, are not respected. Whenever damages to the equipment occur because of fixing or modifications made from non-authorized staff or because of normal deterioration of the system.
PREMESSA AUDIO ANALOGUE non accetta responsabilità nei casi in cui: Le procedure operative di utilizzo e manutenzione dell’apparato descritte nel manuale non siano rispettate. I danni si verifichino in seguito a riparazioni o modifiche dell’apparato eseguite da personale non autorizzato o a seguito di normale deterioramento dell’apparato.
Dear Audiophile, congratulations and thank you for choosing the Audio Analogue Class A SE power amplifier. You’re now the owner of a unit that establishes a new reference in the category of high-quality and high-versatility stereophonic products. The Class A SE, a dualmono design, provides circuital solutions with no compromises and features capable to satisfy the most demanding user. The Class A SE delivers 50 Watt in a 8 Ohm load. This power doubles every halving of the load up to less than 2 Ohm.
Front panel 1) STAND-BY BUTTON ( 1 ). It’s located under the front panel. Pushed for 3 seconds turns on the amplifier. Pushed again shut it off immediately. 2) STATUS LED ( 2 ). This LED is “low intensity red” when the amplifier is off. It’s “bright red” whent the power amplifier is turning on. It’s green when the power amplifier is operating and “blinking red” is there is a problem. Pannello frontale 1) STAND-BY BUTTON ( 1 ). E’ posizionato sotto lo chassis frontale.
Back panel • RIGHT SPEAKER OUT: Right speaker out connector. • LEFT SPEAKER OUT: Left speaker out connector. • INPUT LEFT: Unbalanced line left input. • INPUT RIGHT: Unbalanced line right input. • BALANCED INPUT : Balanced line input for bridged mode (the signal MUST be differential). • AC MAINS: Connect here the provided power cord. • FUSE: If necessary, replace it with an other of the same kind (see back panel label). • POWER: Main switch.
Unpacking and checking Class A package Carefully open the package to avoid damaging the content. The package should contain: • • • 1 Class A SE power amplifier. 1 power cord. 1 instruction manual. If one of the items listed above is missing, please contact your Audio Analogue retailer. After extracting the smallest items from the package, pull out the unit carefully. Separate the package from the anti-shock expanded-foam protections.
Bridge connection To use Class A SE power amplifier in mono configuration (bridged mode) is MANDATORY to have a preamplifier with balanced output. Connect the preamplifier to the XLR input. Connect the negative poles of the speaker outputs connectors using a GOOD speaker cable (NOTE: this connection is mandatory; without this connection the power amplifier can be damaged) . Finally connect the speaker to the positive poles of the amplifier speaker output.
Specifications Parameter Channels: Power: Bridged Mode: Total Harmonic Distortion Sensitivity: Rise time: Slew rate Frequency response: Signal/noise ratio: Power requirements: Power consumption: Measurement conditions 8 Ω @ 1%THD 4 Ω@ 1%THD 2 Ω@ 1%THD 8 Ω @ 1%THD 1W, 8 Ω For 50W @ 8Ω Unbalanced input Balanced input (bridged mode) Full power Full power bandwidth limited A – weighted referred to 50W @ 8 Ω Normal Maximum Weigth Value 2 50W 100W 200W 200W 0,02% 1 Vrms 2 Vrms 2.
Troubleshooting Symptom No LED on No sound Cause Power cord incorrectly plugged Burned-out fuses LED blinking after power ON or during operation Rear switch not turned ON Momentary low voltage on mains plug Internal Failure Remedy Make sure the power cord is correctly plugged into the wall outlet Check fuses in the fuse panel (after unplugging the power cord from the wall outlet) above the IEC inlet and replace them with new ones of the same type Set the switch to “1” Turn off the rear switch, wait 5
A. INFORMATION ON DISPOSAL FOR USERS (PRIVATE HOUSEHOLDS) 1 In The European Union Attention: If you want to dispose of this equipment, please do not use the ordinary dust bin. Used electrical and electronic equipment must be treated separately and in accordance with legislation that requires proper treatment, recovery and recycling of used electrical and electronic equipment.
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