Description
Product descriptionA stereo power amplifier that inherits the philosophy and quality of the SE-A1 and SE-A3, and is also equipped with a linear feedback circuit.A new class A system consisting of a synchro bias circuit and concentrated power block is newly equipped with a linear feedback circuit.This circuit was developed using the best of multiple feedback circuit technology, and forms an independent period circuit within the NFB loop that allows the amplifiers bare amplification = ?, and as a theoretical value, distortion = 0, achieves pure gain unaffected by elements or power supplies, and speaker drive unaffected by back electromotive force or wires.Equipped with a synchronized bias circuit, a constant bias is supplied to each of the + and - side output transistors, which are alternately paused in class B operation, in synchronization with the pause cycle, and the output stage is always in an active state, eliminating switching distortion. is being resolved.Furthermore, since the signal path and the bias current path are made independent, the output stage maintains an appropriate operating point, and combined with the action of the high-speed diode with square-law characteristics, crossover distortion is eliminated.The output stage and power supply section are integrated in a clever configuration, and a concentrated power block is used that completely eliminates the negative effects of electromagnetic fields.Furthermore, external induction is suppressed by using magnetic materials with high shielding effect for the chassis and cover.The power supply section uses four 10,000?F electrolytic capacitors.Equipped with a full (120W + 120W) and limited (30W + 30W) output selector switch, you can enjoy the 30W output with a huge power supply, such as when the surroundings are quiet.When limited is selected, meter illumination is also turned off and power consumption is reduced.Equipped with a purely electronic protection circuit, if a DC component occurs at the speaker terminals, the speaker will be disconnected by a relay.This circuit also works to protect the amplifier in the event of a short circuit at the speaker terminals or an abnormally low impedance load.Equipped with a large power meter that can directly read from 0.0001W to 300W without changing the range.The response complies with the characteristics of the BTS standard VU meter.?Main specificationsModel stereo power amplifierRated output (20Hz to 20kHz)At full: 160W+160W(4?, 0.003%)120W+120W(8?, 0.002%)Limited: 40W+40W(4?, 0.003%)30W+30W(8?, 0.002%)Total harmonic distortionAt rated output: 0.003% (20Hz to 20kHz, 4?)0.002% (20Hz-20kHz, 8?)Rated -3dB output: 0.001% (20Hz to 20kHz, 8?)0.0005% (1kHz, 8?)TIM not measurablePower band width 5Hz to 100kHz (THD 0.007%)Frequency characteristics DC~20kHz +0 -0.1dBDC?200kHz +0 -3dBSN ratio 123dBResidual noise 100?VDamping factor 140(8?)Load impedance Main or Remote: 4? to 16?Main & Remote:8??16?Input sensitivity/impedance 1V/47k? Output meter indication range 0.0001W to 300W-60dB?+5dBPower supply voltage AC100V, 50Hz/60HzPower consumption at full: 330WWhen limited: 100WExternal dimensions Width 430x Height 178x Depth 416mmWeight 18.4kg?The condition of the product is used and has some scratches and dirt due to daily use.For remote delivery areas, additional fees will be charged. Import duties,taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility. These charges are normally collected by the delivering freight(shipping) company or when you pick the item up. -do not confuse them for additional shipping charges. We do not mark merchandise values below value or mark items as gifts. -US and International government regulations prohibit such behavior.
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