Description
Plese Check Photo and Discription.Please feel free to message me if you have any concerns. Manufacturer and model number Technics SE-A5 Accessories None Condition/Maintenance Maintenance and operation checked Top panel matte black repainted Input/output has been checked It has been serviced and maintained in our store. Each part works normally. About the product This is a SE-A5 restored and maintained by a former Technics engineer. (For details, please refer to the maintenance details). The exterior has been beautifully treated, so you can use it with peace of mind for many years to come. Technics SE-A5 150,000 yen (circa 1980) Stereo power amplifier inheriting the concept and quality of SE-A1 and SE-A3, and further equipped with linear feedback circuit. The new Class A system consisting of a synchronous 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, forming an independent period circuit in the NFB loop that allows the amplifiers to have a bare amplification level of ?, Theoretical values of zero distortion, pure gain without the influence of elements or power supplies, and speaker drive without the influence of back EMFs or wires are realized. A synchronous bias circuit is provided for each output transistor on the + side and the - side, which are alternately deactivated in Class-B operation, This circuit supplies a constant bias to the + and - output transistors in synchronization with their rest cycles, which alternately rest in Class-B operation, to keep the output stage always active and eliminate switching distortion. Furthermore, the signal path and bias current path are independent, so the output stage maintains the proper operating point, This, coupled with the function of the high-speed diode with square characteristics, eliminates crossover distortion. The output stage and power supply section are integrated in a clever configuration to adopt a concentrated power block that fundamentally cuts off the adverse effects of electromagnetic fields. Furthermore, the use of highly shielded magnetic materials in the chassis and covers suppresses external induction. Four 10,000?F electrolytic capacitors are used in the power supply section. A switch is provided to switch between full (120W+120W) and limited (30W+30W) output, When the surroundings are quiet, you can enjoy driving the 30W output with a huge power supply. When “limited” is selected, the meter illumination is also turned off and power consumption is reduced. Model: Stereo Power Amplifier Rated output (20Hz to 20kHz)full: 160W+160W (4?, 0.003%), 120W+120W (8?, 0.002%) Rated output (20Hz to 20kHz)limited: 40W+40W (4?, 0.003%), 30W+30W (8?, 0.002%) Total harmonic distortion at rated output: 0.003% (20Hz-20kHz, 4?), 0.002% (20Hz-20kHz, 8?) At -3dB rated output: 0.001% (20Hz to 20kHz, 8?), 0.0005% (1kHz, 8?) TIM: Not measurable Power bandwidth: 5Hz to 100kHz (THD 0.007%) Frequency Response: DC to 20kHz +0 -0.1dB, DC to 200kHz +0 -3dB SN ratio: 123dB Residual noise: 100?V Damping factor: 140 (8?) Load Impedance: Main or Remote: 4? to 16?, Main & Remote: 8? to 16? Input Sensitivity/Impedance: 1V/47k? Output meter indication range: 0.0001W to 300W, -60dB to +5dB Power supply voltage: AC100V, 50Hz/60Hz Power consumption: 330W at full, 100W at limited Dimensions: W 430 x H 178 x D 416mm Weight: 18.4kg SHIPPING?FedEx DHL or Japan Phost?From JapanPackages usually leave our warehouse within 10 days of payment.Weekend orders will ship on Monday or Tuesday.We provide valid Tracking Numbers for all orders. We will ship via FedEx. We can also ship by Japan Post. Please contact me prior to purchase if you wish to ship by Japan Post. PEYMENTS?PayPal?Debit?Cards?Credit?CardsWe ship within 48hours of payment.We Ship Within10 Days of Payment. RETURN INFORMATION?Exchabge possible within 30 days.?If you Have any Problems, Please Contact us in Advance Customoms Duty?Import duties, taxes, and charges are not included in the item price or shipping cost.?These charges are the buyers responsibility.? Please check with your countrys customs office to determine what these additional costs will be prior to bidding or buying.
Live search