ACCUPHASE C-230 Stereo Control Center MC Head Amplifier from JAPAN

Description: DescriptionCondition : UsedUsed with daily use, few scratches and stains This control amplifier is the culmination of Accuphase's many years of accumulated technology.It includes a head amp for MC cartridges and a full-fledged headphone amp, as well as a wide range of sound quality adjustment functions. A fully symmetrical push-pull circuit is used in all amplification stages, from the head amp inlet to the final output stage, including the headphone amp.In addition, DC cut capacitors have been removed from the NF loop of all unit amplifiers to eliminate any coloration of the sound quality. Furthermore, input capacitors have been removed and an ICL system has been adopted. MOS FETs are used in the output stage of the equalizer amplifier and high-level amplifier to improve various characteristics. In order to prevent the power supply impedance from rising, a dedicated constant voltage power supply is provided on the printed circuit board of each unit amplifier to provide the ideal power supply and power supply conditions, resulting in excellent stability and various characteristics. The DC servo system is employed to work as a DC amplifier even when tone control is used, and DC drift is suppressed to almost zero.The feature of this servo system is that it controls the constant current load of the input buffer and does not directly control the system through which signals flow, thus minimizing the effect of the servo system on sound quality.In addition, a feedback prevention circuit is inserted to solve the problem of high frequency distortion characteristics being deteriorated by the feedback capacitance of the input buffer circuit. In the equalizer amplifier, a MOS FET is used for the output to lower the output impedance by driving a large Class-A current, and at the same time, the NF loop is lowered to improve the S/N ratio. A feedback prevention circuit is also inserted in this amplifier to prevent high frequency distortion caused by feedback capacitance of the input circuit. The head amplifier, which consists of a symmetrical push-pull circuit, has a direct input to reproduce high transparency and rich detail.To prevent noise, which can be a problem due to the low signal level, ultra-low noise transistors are used to achieve a S/N ratio close to the ideal limit. The headphone amplifier uses a dedicated DC-configured Class-A pure-computer direct-coupled amplifier. A turnover switch is provided to expand the tone control function.This allows the user to select 200Hz or 500Hz for BASS, and 2kHz or 7kHz for TREBLE.The variable method is by means of an 11-contact rotary switch, which enables precise step changes to be maintained.A tone control ON/OFF switch is also provided. A loudness compensator switch is provided to correct the audibility and energy balance during low volume playback. Three different curves can be selected according to the playback level and listening room characteristics.COMP1 is +6 dB (50 Hz), COMP2 is +9 dB (50 Hz), and COMP3 is +10 dB (50 Hz) and +6 dB (20 kHz). (all with volume adjustment -30dB) A 17Hz, 12dB/oct subsonic filter is provided.The active filter is formed by only adding a CR without adding an active element, utilizing the input active element of the high-level amplifier to emphasize sound quality when the filter is on.This minimizes sound quality and S/N degradation. Two tape recorders or other devices can be connected, and an independent copy switch allows mutual dubbing while listening to the other program source.Shipping We are going to ship by FedEX or DHL or Japan post. Buyer cannot choose the shipping carrier. Economy shipping does not include a tracking number. Economy shipping is 11 to 23 days from ship date to arrival. Standard shipping is 5 to 10 days from ship date to arrival. Expedited shipping is 1 to 4 days from ship date to arrival.International Buyers - Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying. Note on voltage:With the exception of some devices such as USB power supplies, most Japanese electronic devices have a voltage of 100V and an "A" plug adapter. In order for you to use this device outside Japan where the voltage is higher than 100V such as 200V-240V, you are required to use a transformer to adjust the voltage to your local country. Without using a transformer and plug adaptor, this device may be broken. Please purchase these devices in your local store.Products with low power consumption can operate at 120V in the U.S. and other countries without problems.

Price: 949.99 USD

Location: GUNMA

End Time: 2024-12-23T02:48:03.000Z

Shipping Cost: 0 USD