Accuphase announced the fourth anniversary of the founding stereo pre-main amplifier "E-5000" ($ 990,000, tax included).
The company's 50th anniversary model, E-800, released in 2019, has high reputation as a flagship model of pure A-class pre-main amplifier.The new product E-5000 is a flagship model of the AB-class pre-main amplifier that realizes unprecedented output while maintaining the quality comparable to the E-800.
The preamplifier part is a "Balanced Aava" type Volum control.In general preamplifiers, gully may occur due to deterioration of contacts, or noise may increase at normal volume positions in order to adjust the volume using variable resistance.AAVA says that it can create a low noise level at all voluminous positions by creating multiple signals with different sizes from input signals and adjusting the volume by switching the combination of the signal.The E-5000 is equipped with a balanced Aava, which consists of AAVA in a balance circuit, to achieve excellent noise performance.
AAVA also detects the position of the voluminous knob with the Volum sensor mechanism, switches the combination of signals and adjusts the volume.In the E-5000, aluminum blocks were cut out with ultra-precision processing, developing a volume sensor mechanism using hard and heavy material, smooth operation during knob rotation, heavy operation, and precise position detection.These inherit the technology used in the preamp "C-2900" released earlier.
The power amplifier is a "Instrumentation Amplifier" configuration that balances the signal path from the signal input terminal to the output stage.In addition to excellent characteristics such as the ability to remove noise generated in the device and low distortion rate, it is resistant to surrounding environmental changes, improving stability and reliability as a power amplifier.
In addition, the power amplification stage is equipped with a "power transistor, 5 parallel push -pull AB class movement" with a large heat sink.In order to maximize the ability of the speaker, it is important to driven a constant voltage driving without being affected by the impedance of the violently fluctuating speaker.To do so, the power amplifier must be able to supply current that is inversely proportional to the impedance.
In the E-5000, the number of powertresses stars increased to increase current supply capacity, and the output impedance was reduced to enable dynamic constant voltage driving.A large power powertress rangster is connected to 5 in parallel per channel, and the push -pull AB class operates.These technologies have achieved a powerful power of 320W at 8Ω 240W and 4Ω at 4Ω.
The other features of other E-5000 are as follows.
● Reliable logic, relay control, signal switching method ● A wealth of input terminal (line 5/balance 2 system) ● Input/output terminal for recorder connection (line) ● Phase setting is possible for each input terminal ● Stereo signal Can be converted to monovonic signal ● Instantable at-20 dB Attenator ● Compensation sweater to balance the hearing of hearing ● Additional active filter tone control ● High-range phase characteristics Amplifying circuit ● Speaker output protection circuit that prevents short accidents ● Protection circuit adopts low impedance and highly reliable Mosfet switch ● 2 large speaker terminals that can switch output or simultaneous output ● Biamatch connection. Perspect portion output terminal (line/balance) ● Power amplifier input terminal (line/balance) that can be used as a power amplifier ● High -quality headphone exclusive amplifier with discrete circuit ● Slot that can insert two options boards ● The digital input board "DAC-60" (sold separately) supports high-resolution sound source playback ● The analog record is played on the analog disk input board "AD-50" (sold separately). Includes power cord "APL-1" that emphasizes sound quality
Main specifications of "E-5000"
● Rated continuous average output (20-20kHz): 4Ω load 320W/ch, 8Ω load 240W/chs ● All high -conditioning distortion rate (20-20kHz): 4-16Ω load 0.05 % ● Road impedance: 1 set of speakers: 4-16Ω, 2 pairs of speakers 8-16Ω ● Connection terminal: 7 analog input (RCA x 5, XLR x 2), 1 recorder input / output (RCA), 2 patients (RCA)RCA, XLR), Main in2 system (RCA, XLR), option board expansion slot x 2, speaker output x 2 ● Power consumption: 8Ω load rating 796W (0 in standby).3W) ● Dimensions/mass: W465 × H211 × D502mm/33.8kg
