9-Channel Amplifier ADVANCED FEATURES

9-Channel Amplifier
• 150 Watts per Channel at 8 ohms, 20 Hz–20 kHz, 0.05%, 2 Channels
Driven, FTC
• THX Ultra2 Certified
• WRAT (Wide Range Amplifier Technology)
• HICC (High Instantaneous-Current Capability)
• Push-Pull Amplification Design with Three-Stage Inverted Darlington
Circuitry to Remove Distortion
• All Discrete Output Stage Circuitry
• Massive Toroidal Transformer
• Two Large, Customized, 22,000 µF Capacitors for Effective Power
• Audio-Tuned Reference Capacitors for Each Channel
• Large, Custom-Designed Power Transistors to Drive High Currents
• Low-Impedance, Copper Bus Plates for Perfect Ground Potential
• High-Current, Low-Impedance Circuit Boards with Thick Copper Foil
(70 µm)
• Flat, High-Rigidity, Anti-Resonant Chassis
• Gold-Plated XLR Inputs
• Machined Solid Brass RCA Inputs
• Gold-Plated, Colour-Coded, Banana Plug-Compatible, Transparent
Speaker Posts
• Multi-Zone Capability (up to Zone 3)*
• Bi-Amping Capability*
• 12 V Trigger Input
• Auto Power Down Function
• Aluminum Front Panel
Depending on A/V Controller.
HICC (High Instantaneous-Current Capability) - Experience audio with greater dynamics
When an amplifier outputs an audio signal, the connected speakers accumulate energy,
reflex, and send energy back to the amplifier. The amplifier must then immediately cancel
the speakers’ reflex energy and instantaneously send out the next signal. The same
high current required to achieve this is also necessary to handle speaker impedance
fluctuations, which can force an amplifier to provide four to six times its usual current load.
The DTA-70.1’s instantaneous current capability ensures that audio output is not affected
by power limitations.
In order to handle high levels of instantaneous current, the DTA-70.1 incorporates several
key design features.
(1) Push-Pull Amplification Design with Three-Stage Inverted Darlington Circuitry
Found only in high-end amplifiers, this ultra-sensitive circuitry reduces distortion by
maintaining voltage stability and enhancing transient response.
(2) Improved Board Design
The DTA-70.1 features an improved board design with short signal pathways to reduce
electromagnetic interference. The board is also designed to optimise power delivery to
the speaker drivers.
(3) Symmetrical Layout
The amplifier design also incorporates a symmetrical alignment of power devices for
each channel. With channels built to be identical in terms of electrical, structural, heatgenerating, weight, and electromagnetic characteristics, errors in stereophonic playback
are minimised.
All-Analog Circuitry Unaffected by Digital Noise
A standard integrated A/V receiver has the dual task of both processing and amplifying
audio signals, and is therefore susceptible to noise interference from digital circuitry. As a
dedicated power amp with all-analog circuitry, the DTA-70.1 suffers no such interference.
When partnered with a high-quality pre-pro, the DTA-70.1 offers all the benefits of pure
analog amplification: a warm, musical, and full-bodied sound.
THX® Ultra2™ Certified
When a home theatre component receives THX certification, it is your guarantee that it
will accurately present movies the way they were mixed by the filmmaker in the studio. In
the case of THX Ultra2 certification - the ultimate benchmark for home audio performance
- a power amplifier must offer high-quality, high-output performance for multi-channel
playback in large rooms. Among the strict criteria that THX uses for judging the quality of
a power amplifier are measurements of continuous power output, distortion levels, and
heat generation.
9-Channel Amplifier
Power Output:
All Channels:
Power Supply:
Power Consumption:
Dimensions (W x H x D):
AC 220–240 V, 50/60 Hz
435 x 198.5 x 445 mm
150 W /Ch at 8 ї,
20 Hz–20 kHz, 0.05%,
2 channels driven, FTC
280W at 6ї, 1 kHz,
1 Channel Drive, JEITA
Dynamic Power:
400 W (3 ї, Front)
300 W (4 ї, Front)
180 W (8 ї, Front)
THD (Total Harmonic Distortion): 0.05% (Rated power)
Damping Factor:
60 (Front, 1 kHz, 8 ї)
Input Sensitivity and Impedance: 1 V/47 kї (Balanced)
2 V/22 kї (Unbalanced)
Frequency Response:
5 Hz–100 kHz/+1 dB, -3 dB
Signal-to-Noise Ratio:
110 dB (Unbalanced, IHF-A)
Speaker Impedance:
4 ї–16 ї or 6 ї–16 ї
Due to a policy of continuous product improvement, Onkyo reserves the right to change specifications and appearance without notice.
THX Ultra2 is a trademark of THX Ltd. THX may be registered in some jurisdictions.
WRAT is a trademark of Onkyo Corporation.
All other trademarks and registered trademarks are the property of their respective holders.
Due to a policy of continuous product improvement, Onkyo reserves the right to change specifications and appearance without notice. Dolby, Pro Logic, and the double-D symbol are registered trademarks of Dolby Laboratories. DTS is a registered trademark & the DTS
logos and Symbol are trademarks of DTS, Inc. HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC. Faroudja DCDi Edge is a registered trademark of Genesis Microchip Inc. All rights
reserved. Manufactured under license from Audyssey Laboratories. U.S. and foreign patents pending. 2EQ, Dynamic EQ, and Dynamic Volume are trademarks of Audyssey Laboratories. The trademark of Apple Inc., registered in the U.S. and other
countries. Aureus is a trademark of Texas Instruments. x.v.Color is a trademark of Sony Corporation. WRAT, Theater-Dimensional, CinemaFILTER and Music Optimizer are trademarks of Onkyo Corporation. All other trademarks and registered
trademarks are the property of their respective holders.
Australia: Sole Distributor, Amber Technology Ltd.
Unit D, 5 Skyline Place, Frenchs Forest NSW 2086, Sydney, AUSTRALIA
Tel: +61-2-9452-8600 Fax: +61-2-9972-7143
e-mail: consumer@ambertech.com.au
Inspired By Passion - Driven By Excellence.
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