The sandwiched structure of output stage transistors
The output stage power transistors are sandwiched with a large
heat sink and 10 mm aluminum blocks.
This sandwich construction effectively absorbs vibration and
promotes heat radiation of the power transistors. This construction
also works as a magnetic shield absorbing magnetic flux leakage
from the power transistors, resulting in clearer sound reproduction.
Unique vibration-free heat sink structure (PAT.P)
The A-80 has a specially made large heat sink provided with two
stainless poles for fin resonance absorption. The base part of the
heat sink has 10 mm thickness for optimal heat radiation property.
The output stage transistors are supported rigidly with the
aluminum block and the heat sink, to get the maximum effect of
heat radiation.
Massive body construction which eliminates the unwanted
vibration
The exterior is covered with specially selected aluminum material.
This is the same material used for industrial semi-conductor
processing machines, and the quality level is strictly controlled and
the processing distortion level is minimized. T 20 mm aluminum is
applied for the front panel, and T10 mm aluminum for the top, side,
and rear panels. To keep the highest level physical precision, all
the component parts are built under strict torque control.
The highest grade parts selection
The highest grade audiophile components were selected for the
A-80. Extensive listening tests were conducted for parts selection
based on component neutrality and variations in “acoustic texture.”
High quality Hovland capacitors, Vishey-Dale wire-wound resistors
are used for the main circuit and high purity 6N (99.9999%), copper
are used for critical internal wiring.
The speaker terminals are WBT-0710Cu, the latest version of WBT
terminals, incorporating pure copper conductor material for high
signal purity and ultra-low terminal resistance. Signal loss is kept to
a minimum with the use of these high grade audiophile connections
KEY FEATURES
-
1kVA High Capacity Toroidal Power Transformer
-
9mm Thick Steel Heavy-weight Main Chassis
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2-stage Darlington Circuit on Amplification Stage
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3-parallel Push-pull Circuit on Output Stage
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Large Size Heat Sink
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3 Pin-point Feet
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Machined Panels (Front : 20mm thick, Back : 10mm thick)
-
Torque Controlled Bolts
MAIN SPECIFICATIONS
Output power
200 Watts (8 ohms), 400 Watts (4 ohms)
Frequency response
10Hz to 100kHz (+0dB/-3dB, 8 ohms)
S/N ratio
> 110 dB
Input sensitivity
850 mV / 160 Watts (8 ohms)
Input impedance
200k ohms (RCA)
Input terminals
Balanced x 1 (XLR), Unbalanced x 2 (RCA)
Speaker terminals
x 2 pairs (Binding post type)
GND terminal
Screw type
AC 230 V, 50 Hz (European model)
AC 120 V, 60 Hz (U.S.A. / Canada model)
Power supply
AC 220 V, 60 Hz (Korea model)
Power Consumption
200 Watts
External Dimensions (W x H x D)
250 x 219 x 430 mm (9-7/8" x 8-5/8" x 17")
Weight
34 kg (75 lbs.)
-
Design and specifications are subject to change without notice - Weight and dimensions are approximate.
TEAC ESOTERIC COMPANY
47 Ochiai 1-chome, Tama-shi,
Tokyo 206-8530, Japan
Fax: +81-42-356-9240 www.teac.co.jp/av/
www.teac.com/esoteric/
