Audio Database

E-211の画像

Accuphase E-211
190,000 yen(October, 1998 release)

Description
 
Integrated amplifier to which the polish was further applied based on E-210 and which was developed as more highly complete amplifier.

The power transistor for the Oide power audios excellent in many characteristics, such as a current gain linearity and switching, is adopted as a power amplifier. This element is constituted from a parallel push pull, it attaches on a large-sized heat sink, and efficient heat dissipation processing is carried out.
Moreover, operation to heat adopts the power MOS FET of the negative characteristic as a drive stage, the power transistor and heat inclination of the right characteristic are offset, and stable operation is guaranteed to it.

In E-211, the current feedback type magnification circuit which returns an output signal in the form of current is adopted.
The principle of this circuit lowers the impedance of the input terminal which is a return side first, detects current, carries out I-V (current-voltage) conversion of that current with a transformer impedance amplifier, and makes an output signal. Therefore, since the impedance of a return input portion is low, it is hard to generate phase rotation, and there is almost no necessity for a phase guarantee.
Thereby, since many characteristics are sharply improvable by a little NFB, it excelled in dynamic characteristics, such as a standup, and the natural energy response has been obtained.

Since a straight signal course is constituted at the shortest, the logic relay control system which controls a relay electronically has been adopted.
Adopting the sealed type relay for communication industry as the relay used for this, the contact is the crossbar twin system plated with gold, and is using the thing of low contact resistance and quantity durability.

Tone control of the added type active filter system used for a graphic equalizer is carried in tone control.
From this system, it passes straight, and if needed, an original flat signal is another, and makes the characteristic, and it has a structure more advantageous to sound quality than the conventional tone control according to making it adjust from a flat signal by it.

The power transformer of the large power capacity of about 400 VA is used for a power-source part.
Moreover, two 22,000-micro F things are carried in the aluminum electrolytic capacitor which changes into a direct current the pulsating current which passed the commutator.

The logarithm compression type output peak power meter is carried.

The balance input is carried.

The speaker terminal which can respond also to a thick speaker cable is carried.
It is used, changing two lines or bi-wiring connection is possible.

Volume and the remote commander in whom an input change is possible are attached.

The slot for option boards is carried and it can extend on the board corresponding to an AAB standard (Accuphase Analog Bus).


Rating of a mode
Form Integrated stereo amplifier
Rated continuation average output
(Both channel operation, 20Hz - 20kHz)
115 W/ch (4ohms)
105 W/ch (6ohms)
90 W/ch (8ohms)
THD (both channel operation) 0.04% (4ohms - 16-ohm load)
IM distortion 0.01%
Frequency response High Level input: 20Hz-20kHz+0 -0.2 dB (at the time of a rated continuation average output)
Dumping factor 110 (8-ohm load, 50Hz)
Input sensitivity/impedance
(An Output power / EIA1W output)
High Level input: 213mV/22.5mV/20kohm
Balanced input: 213mV/22.5mV/40kohm
Gain High Level input -> output: 42dB
S/N, input conversion noise
Input short-circuit and A-compensation EIA S/N
At the time of an Output power S/N Input conversion noise
High Level input: 110dB -129dBV 81dB
Balanced input: 92dB -111dBV 81dB
Tone control Low-pitched sound (300Hz): ±10dB (50Hz)
Loud sound (3kHz): ±10dB (20kHz)
Loudness Compensation + 6dB (200Hz, Volume-30dB)
Power meter Logarithm compression type peak level display
dB scale and the output Direct reading at the time of 8-ohm load
Load impedance 4ohm-16ohm
Headphone jack Conformity impedance: 4ohms - 100ohms
Power source AC100V, 50Hz/60Hz
Power consumption 30W (at the time of no inputting)
220W (Electrical Appliance and Material Control Law)
336W (at the time of an 8-ohm load Output power)
The maximum Dimensions Width 475x height 150x depth of 422mm
Weight 18.5kg
Attachment: Remote commander RC-23
Remote control system Infrared pulse system
Power source DC 3V
Dry cell AA -- type and two pieces
The maximum Dimensions Width 45x height 136x depth of 18mm
Weight 85g (Battery included)
Option: Option board
With no picture Line-in board Line-9 (6,000yen)
The common high-level input terminal of an imbalanced system.
Analog signals, such as CD player and a tuner, are played.

With no picture Analog disc input board AD-9 (30,000yen)
All cartridges are supported by loading of a high gain equalizer.
With an internal DIP switch, a MM/MC change, MC input impedance, and Subsonic-Filter on/off can be set up.

MM Gain: 36dB
Input impedance: 47kohm
MC Gain: 62dB
Input impedance: 10, a 30 or 100-ohm change
The Line-in board Line-10 (8,000yen)
The common high-level input terminal of an imbalanced system.
Analog signals, such as CD player and a tuner, are played.
The Analog disc input board AD-10 (50,000yen)
All cartridges are supported by loading of a highly efficient high gain equalizer.
With an internal DIP switch, a MM/MC change, MC input impedance, and Subsonic-Filter on/off can be set up.

MM Gain: 29dB
Input impedance: 47kohm
MC Gain: 60dB
Input impedance: 10, a 30 or 100-ohm change