Esoteric A-100 owner manual Troubleshooting, Specifications, General

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Troubleshooting

If you experience any problem with this unit, please take the time to look through this chart and see if you can solve the problem yourself before you call your dealer.

General

No power

eCheck the connection to the AC power supply. Check and make sure the AC source is not a switched outlet and that, if it is, the switch is turned on.

eInsert the power cord into the AC inlet of this unit.

Remote control doesn’t work.

ePress the POWER switch of the main unit to turn it on (page 13).

eIf the batteries are dead, change the batteries (page 12). eUse remote control unit within the range (7m /23ft) and

point at the front panel (page 12).

eSet the LINE IN/DIRECT IN switch on the rear panel to “LINE IN” (page 10). The remote control for this amplifier will only work in the “LINE IN” (Integrated amp), mode.

There is no sound or only a very low-level sound is heard. ePress the POWER switch to turn on the unit, your external

pre-amplifier (If any), and disc player, etc.

eMake sure a signal is output from a pre-amplifier or a player, etc.

eCheck if the pre-amplifier, speakers and source components are secure connected.

eSelect input setting of the pre-amplifier correctly. eAdjust the pre-amplifier volume.

eThe protection circuit is in operation when the color of the indicator ring of the POWER switch changes from blue to red. Turn off the unit immediately if this indicator is red and solve the cause of problem.

eThe speaker cord may be shorted out. Check your speaker connections.

Unstable sound.

eSpeaker polarity (+/_) is reversed. Check all speakers for correct polarity.

If normal operation cannot be obtained, unplug the power cord from the outlet, wait about 60 seconds and plug it again. This resets the internal micro-computer which can be disturbed during electrical storms, power interruptions, etc.

Specifications

General

Power supply

Europe model. . . . . . . . . . . . . . . . . . . . . AC 230 V, 50 Hz U.S.A./Canada model . . . . . . . . . . . . . . . AC 120 V, 60 Hz Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . 200 W Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 kg (88 4/5 lb)

External dimensions (W x H x D)

382 x 252 x 486 mm (15 1/16” x 9 7/8” x 19 1/16”) Operating temperature . . . . . . . . . . . . . . . . . . +10˚C - +30˚C Operating humidity . . . . . . . . 5% to 85% (no condensation) Storage temperature . . . . . . . . . . . . . . . . . . . . –20˚C - +55˚C

Amplifier Section

Maximum useful output power . . . . . . . . . . . . 45 W + 45 W (1 kHz, 8 ohms/4 ohms, JEITA)

Total Harmonic Distortion . . . 0.1 % (at 1 W, 1 kHz, 8 ohms) Frequency Response . . . . . . . . . . . . . . . . . . . . 20 Hz to 60 kHz (at 1 W, 8 ohms, +1/–3 dB)

Signal-to-Noise Ratio . . . . . . . . . . . . more than 98 dB (JEITA) Input Sensitivity (maximum output at maximum volume)

400 mVrms/45W (8Ω) Input impedance. . . . . . . . . LINE IN: 10 kΩ, DIRECT IN: 1 MΩ

Tube Section

First stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12AT7 x 2 Drive stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12AU7 x 4 Bottom stage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . KT88 x 4

Accessories

Power cord x 1

Remote control unit (RC-1156) x 1

Batteries (AA, R6, SUM-3) x 2

Felt pads x 3

Owner’s manual x 1

Warranty card x 1

•Design and specifications are subject to change without notice.

•Weight and dimensions are approximate.

•Illustrations may differ slightly from production models.

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Contents 100 Important Safety Instructions Contents Before use MaintenancePlacement of the unit What’s in the boxAbout the speaker cable Connection using speaker cables with banana plugsSpeaker connection Connection methodWhen 6$, 8$ or 16$ speakers are connected Connection example Connecting speakersWhen 4$ speakers are connected Right speakerWhen biwiring 4$ speakers When biwiring 6$, 8$ or 16$ speakersOther connections Signal GND connection Bias switchVolume control motor cover Analog audio input terminals LineDirect terminal Line IN/DIRECT in switchConnection Direct Front panel features Remote control sensorRemote control unit VOLUME, INPUT, MutingPrecautions concerning batteries How to insert the batteriesBattery Replacement Protection circuitsGeneral TroubleshootingSpecifications 382mm 252mm 486mm Teac Esoteric Company

A-100 specifications

The Esoteric A-100 is a high-performance audio component designed to cater to audiophiles seeking superior sound quality. As part of Esoteric’s reputation for excellence in the high-end audio segment, the A-100 showcases cutting-edge technology and meticulous craftsmanship.

One of the standout features of the A-100 is its advanced digital-to-analog conversion capabilities. It incorporates Esoteric's renowned DAC technology, which utilizes a high-precision, low-distortion multi-bit architecture. This design provides a richer and more detailed sound profile, catering to the most discerning listeners. The A-100 supports an array of digital inputs, including USB, coaxial, and optical, ensuring compatibility with a wide range of audio devices.

In terms of build quality, the A-100 exemplifies Esoteric's commitment to durability and aesthetics. Its chassis is constructed from rigid materials that minimize vibration and electromagnetic interference. The sleek, modern design not only enhances its visual appeal but also serves a functional purpose by aiding in overall performance integrity.

Another notable characteristic is the extensive customization options available with the A-100. Users can fine-tune their listening experience through various settings, allowing adjustment of balance and tone to suit individual preferences. The addition of a high-performance headphone amplifier further extends its versatility, making it an excellent choice for both speaker and headphone listening.

Technologically, the A-100 employs proprietary algorithms for signal processing, enhancing the audio output quality. Its upsampling capabilities convert lower resolution audio sources to a higher resolution, delivering a more immersive listening experience. This technology significantly improves the soundstage and clarity, revealing subtle nuances in the music that may otherwise go unnoticed.

In summary, the Esoteric A-100 is a sophisticated fusion of robust engineering, advanced technology, and aesthetic design, making it a standout in the high-fidelity audio market. With its meticulous attention to detail and user-focused features, the A-100 is sure to impress audiophiles and enhance any audio setup, delivering an unparalleled listening experience that is both dynamic and immersive.
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