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Technics SE-A5MK2 Computer Drive Class A Amplifier

Submitted by on December 15, 2010 – 9:55 am

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Technics SE-A5MK2 Computer Drive Class A Amplifier Picture and Description:

 203053206308752050 Technics SE A5MK2 Computer Drive Class A Amplifier

                                                      Up for AUCTION is: Technics SE-A5MK2 Computer Drive New Class A Stereo DC Power Amplifier. Condition: This is a VERY NICE unit in EXCELLENT condition and fully functional. Includes: Technics SE-A5MK2 Computer Drive New Class A Stereo DC Power Amplifier - Nothing else is included.Description: An output stage is total as a three-step Darlington stream composition which uses the high resisting pressure transistor of Pc150W by 2 Para interconnection, and has gained 1.2kW Pc. Moreover, a power circuit is the right-and-left independent design of a mass capacitor using of large-sized transformer of 390VA, and 80 V.8200micro-Fx4, and has eliminated the interference between channels.                      The power linear circuit original with technics is carried. This developed the circuitry technology of the linear feedback, brings the effect to an amplifier output stage, raises a linearity by leaps and bounds, and is suppressing distortion by the low-impedance load intensity of the speaker produced at the moment at a moment.                      It is carrying the original computer drive circuitry and introducing a computer into a bias control of a signal system,Transient crossover distortion is canceled by always driving the output transistor which repeats a rapid temperature change according to a transition of a music signal with the optimal idling electric current (ICQ).                      The linear feedback circuit (LFB) is carried. This is a thing in which an independent feedback circuit which enables an infinite amplification in a NFB loop was formed, theoretical value distorted = zero are realized, and at least 20kHz of infinity and a upper limit of the outstanding distorted reduction effects of 40dB or more are mostly acquired at the lower limit of an audible region.                      The synchro bias circuit is carried, by supplying a fixed bias synchronizing with the pause cycle of an output transistor, the output stage was always set to the active state, and switching distortion is canceled. Furthermore, by making a bias-current circuitry become independent of a signal system, crossover distortion was minimum-ized, it is efficient and the clear tone quality of a Class-A operation is realized.                      The concentrated power block was adopted, the output stage and the power-source part were unified with the skillful stream composition, and the ill effect of the electromagnetic field leading to a high region distorted occurrence is cut off.                      The pure electronic formula protection network by computer control is carried.                      The large-sized power meter in which a Direct reading is possible without a range change in from the minute output of 0.0001W to 300W is carried.                                                                               Form Stereo DC power amplifier:                                                            Effective output 150W+150W (8 ohms, 20Hz - 20kHz, 0.002%)                                                            THD 0.002% (at the time of 20Hz - 20kHz, and an Output power)                                                            TIM Incapable measurement                                                            Output bandwidth 5Hz - 100kHz (THD 0.01%)                                                            Frequency characteristic DC-20kHz+0 -0.1dB                                                            DC-200kHz+0 -3dB                                                            SN ratio (IHF-A) 123dB                                                            Remains noise 0.11mV                                                            Dumping factor 100 (8ohms)                                                            Load impedance main or remote: 4ohms - 16ohms                                                            main+remote: 8ohms - 16ohms                                                            Input sensitivity/impedance 1V/47kohm                                                            Power output meter indicating range - 60dB - +5dB 0.0001W-1kW (8ohms)                                                            Meter indication precision ±3dB (less than [ -50dB ], 20Hz - 20kHz) ±2dB (more than -50dB, 20Hz - 20kHz)                                                            Power source AC100V, 50Hz/60Hz                                                            Power consumption 300W                                                            Dimensions Width 430x height 178x depth of 416mm                                                            Weight 18.4kg   Shipping : Domestic Shipping is to the lower 48 U.S. If you would like a shipping quote to Hawaii or Alaska please e-mail me prior to bidding. Item will ship within 1-2 business days of confirmation of payment.Payment : Items must be paid for within 3 days of the auction close. If you cannot make payment within 3 days and need a few more days just notify me and I will try to work with you.                                                          Please view my feedback & buy with confidence.                                                           By purchasing you are agreeing to the following terms:                                                           All sales final and item is "as is".                                                           Payment to be made within 3 days of purchase.                                                                                   Thank you!  

 203053206308752051 Technics SE A5MK2 Computer Drive Class A Amplifier
 203053206308752052 Technics SE A5MK2 Computer Drive Class A Amplifier
 203053206308752053 Technics SE A5MK2 Computer Drive Class A Amplifier