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Rx-7, Zx–7 | rx-7 | gx-7, Lexicon – Lexicon GX-7 User Manual

Page 4: Power amplifiers, Pecifications

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Audio Input Connectors

7 RCA

Audio Output Connectors

7 pairs of heavy-duty, gold-plated
binding posts

Performance

Output Power

200W RMS per channel into 8 Ohms from 20Hz to 20kHz
300W RMS per channel into 4 Ohms from 20Hz to 20kHz

Minimum Recommended
Speaker Impedance

4 Ohms

Frequency Response

20Hz to 20kHz +0.1dB/-0.5dB
10Hz to 40kHz +0.1dB/-1.5dB

Total Harmonic
Distortion (THD)

Less than 0.05% at full power ratings

Signal-to-Noise Ratio

Greater than 100dB, ref 200W/8 Ohms (30kHz bandwidth)

Intermodulation
Distortion (IM)

Less than 0.05% at full power ratings

Crosstalk

Greater than -60dB @ 1kHz (30kHz bandwidth)

Damping Factor

Greater than 400 from 10Hz to 400Hz

Input Sensitivity

1V for 100W out @ 8 Ohms

Input Impedance

Minimum 10KOhms

Gain

Minimum 28dB

Other

Trigger Input

5 to 12 Volts DC ± 10%, 3.5mm T/S jack

Power Requirements

120V 60Hz 12 Amp (domestic)
230V 50Hz 7 Amp (export)

Height 7.5-inches
Width

17.2-inches

Depth

18.5-inches (including handles)
17.5-inches (not including handles)

Weight

105 pounds (23.1 kg)

Rack Mounting

Optional brackets are available for mounting the
amplifier in a standard 19-inch equipment rack.

Specifications are subject to change without notice.

S

PECIFICATIONS

RX-7

Lexicon

ZX–7 | RX-7 | GX-7

Power Amplifiers

Designed to power the finest home theater and music systems, Lexicon power
amplifiers are engineered to perform under the most demanding conditions.
They deliver tremendous dynamics along with smooth extended highs, open
midrange and solid bass reproduction.

Lexicon amplifiers feature massive toroidal transformers, with ample power
reserves capable of reproducing the most demanding soundtracks without
compromising the details inherent in these recordings.

A requirement of high performance systems is the reproduction of subtle details
and sonic nuances that bring recordings to life. These details create a much
greater sense of involvement and bring the performance closer to the listener.
Lexicon amplifiers are remarkably quiet and feature exceptionally high
signal-to-noise ratios. Equally important, distortion is extraordinarily low,
reproducing fine detail with the utmost clarity.

The ZX-7 & RX-7 feature true balanced topologies. This approach results in
lower noise, lower distortion, and eliminates interference from external stray
electronic fields. Music reproduction benefits from a cleaner soundstage
and increased dynamics, while the presentation of subtle detail is improved
appreciably due to the significantly lower noise floor. Designed for the
enthusiast, Lexicon power amplifiers are the perfect complement to our
award-winning Digital Controllers & Disc Transports, and are ideally suited to
power the world’s finest listening systems.

GX–7 Power Amplifier

shown with MC–4

Digital Controller

RX–7 Power Amplifier

shown with MC–8

Digital Controller

ZX–7 Power Amplifier

shown with MC–12HD

Digital Controller