NEW Accuphase E-280 AB Class INTEGRATED STEREO AMPLIFIER 90W/ch w/RC-250

Description: NEW Accuphase E-280 AB Class INTEGRATED STEREO AMPLIFIER 90W/ch w/RC-250 Description Condition: New The preamplifier section is equipped with an AAVA volume control, which is a pure analog circuit. By doubling the total current and halving the impedance of the circuit, noise is reduced and the S/N ratio is improved by 1dB. The damping factor, which affects the behavior of the speaker, has been achieved at 500 by reviewing the pattern and wiring between the power amplifier and the speaker output terminal to reduce the output impedance. The power amplifier stage is equipped with a high-output power amplifier with a parallel push-pull configuration that drives two bipolar transistors in parallel per channel. Rated output: 90W at 8Ω, 120W at 4Ω. A current feedback amplifier circuit with excellent phase characteristics in the high range is used. The power supply circuit is equipped with a large-capacity transformer, and while the filter capacitor capacity is the same as before at 30,000μF, a newly developed aluminum electrolytic capacitor has been developed specifically for this purpose, improving sound quality. In addition, the preamplifier section is equipped with a dedicated power supply circuit to prevent interference with the power amplifier. The power amplifier section is an instrumentation amplifier configuration, and the signal path is balanced transmission. The current feedback amplifier circuit is also inherited. Equipped with "EXT PRE function" that separates the preamplifier and power amplifier and allows them to be used independently. Achieves contactless protection circuitry with a power MOSFET switch. Expands option slots to two slots. Equipped with a wide range of functions such as headphone output, tone control, compensator, and remote control. Supports two speaker output terminals/bi-wiring connection.・Input terminals: 5 RCA, 1 XLR, 1 recorder/PLAY+REC, 1 main IN, 1 RCA pre-out ・Size: 465W x 151H x 420D mm ・Weight: 20.4kg ・Total harmonic distortion: 0.05% ・Input sensitivity: Balanced IN, Line IN/134mV, Main IN/1.07V ・Input impedance: Balanced IN/40kΩ, Line IN, Main IN/20kΩ ・S/N: Balanced IN/96dB, Line IN/107dB, Main IN/122dB ・Power consumption: No input/52W, 8Ω rated output/345W ・Remote control: Infrared pulse type Included with the "RC-250" Looking at the specs, the basic specs and functionality as a pre-main amplifier are almost the same as the "E-270". However, improvements have been made in every detail, making it a product that has opened up a new stage beyond its class. Here is a summary of the improvements made to the E-280 from the E-270. ■ Improved damping factor: 25% higher than the E-270, now at 500 In recent years, Accuphase amplifiers have focused on improving the damping factor, which increases the driving force for speakers. In addition to the conventional method of lowering the impedance of the output circuit by using MOS-FET switches in the protection circuit, the damping factor has been improved from 400 in the E-270 to 500, a 25% increase, by completely revising the pattern and wiring between the power amplifier and the speaker output terminals. The overall sense of dynamism and speed of the music has been improved, improving the expression of the shadows in the sound field. In addition, the increased damping force makes it possible to drive speakers that were difficult to drive with previous models. ■ Improved AAVA volume control, improved signal-to-noise ratio All current Accuphase integrated amplifiers feature a volume control section that uses the company's unique AAVA system. Although it is an analog volume, it has an extremely small volume with little deviation between left and right, scratches, or sound quality change depending on the volume position, and is equipped with an AAVA circuit that has been improved with each model change. The total current in the AAVA circuit has been doubled from the previous model, and the impedance of the circuit has been halved to reduce noise. In addition, low-noise, high-precision thin-film resistors are used. These improvements have improved the S/N ratio by 1dB compared to the "E-270", but don't underestimate it by saying "only 1dB!" It has achieved a sense of silence that is clearly noticeable to the ear. ■ Newly supports two slots for adding optional boards (This was the most surprising thing for me!) The expansion circuit for optional boards, which previously had only one slot, now supports two slots. Up to two USB/coaxial/optical digital compatible DAC boards "DAC-50" and phono equalizer boards "AD-50" can be added. Supports users who want to listen to a wide range of sources. In a sense, some people may be most pleased with this improvement. The ability to install two optional boards (sold separately) is a great opportunity to expand the system. *The "AD-50" supports MM and MC cartridges and allows you to set the following: [Equalizer Gain Switching], [MC Input Impedance: 30/100/300Ω], [Subsonic Filter: 25Hz-12dB, ON/OFF] (MM/MC switching is set on the front panel of the E-280). You can connect two boards to support two cartridges (it can also support players with W-arms). *The digital input board and D/A converter "DAC-50" supports formats up to PCM: 32bit/384kHz and DSD: 11.2896MHz as a USB-DAC. The digital board is the fifth generation since the "DAC-10" released in 2000, so you can rest assured that it will always support the latest formats. It is said that this board standard will continue in the future (although I don't think it will last forever...). ■ The display (meter) can now be completely turned off. When listening in a dark room, you can turn off the meter lighting, which can be surprisingly dazzling, and listen calmly. This is also a GOOD thing for me. ■ The initial value of the meter has become smaller. The E-270 started to move from -40dB, but the E-280 starts to move from -50dB. It's 10dB lower, so I'm happy that the meter moves properly even when listening at a very low volume. Payment Please pay within 5 days after the auction closed. Shipping About other area, please ask me. When you purchase two or more my items, I can send them together and discount shipping cost. Returns Returns are accepted ONLY if the item was not the item described. International Buyers - Please Note: * Import duties, taxes and charges are not included in the item price or shipping charges. 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/buying. * 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.

Price: 3740 USD

Location: 静岡県藤枝市

End Time: 2024-11-30T07:52:47.000Z

Shipping Cost: 0 USD