Integra DTA 70.4 9 Channel Amplifier 

 

 

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• 150 W/Ch at 8 Ω, 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 

      Supply

• 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, Color-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

 

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 optimize 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,

heat-generating, weight, and electromagnetic characteristics, errors in stereophonic

playback are minimized.

 

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 theater 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.