Lexicon GX-7 User manual

Audio Input Connectors 7RCA
Audio Output Connectors 7pairs of heavy-duty, gold-plated
binding posts
Performance
Output Power 125W RMS per channel into 8 Ohms from 20Hz to 20kHz
188W 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 125W/8 Ohms (30kHz bandwidth)
Intermodulation
Distortion (IM) Less than 0.05% at full power ratings
Crosstalk Greater than -80dB @ 1kHz (30kHz bandwidth)
Damping Factor Greater than 200 @ 20Hz (ref 8 Ohms)
Input Sensitivity 1V for 100W out @ 8 Ohms
Input Impedance Minimum 10KOhms
Gain Minimum 28dB
Other
Trigger Input 3.3 to 24 Volts DC ± 10%, 3.5mm T/S jack
Power Requirements 120V 60Hz 12 Amp (domestic)
230V 50Hz 7 Amp (export)
Height 5-inches
Width 16.2-inches
Depth 19.5-inches (including handles)
17.12-inches (not including handles)
Weight 51 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.
Printed in U.S.A. •Part#072-18136 • Not responsible for any typographical errors • Other companyand product names maybe trademarks of the respective companies with which they are associated.
©2006 Harman International Industries, Incorporated.
3Oak Park, Bedford, MA 01730-1413 USA | Tel: [phone] | Fax: [phone] | www.lexicon.com.
SPECIFICATIONS GX-7

ZX–7 Power Amplifier
Audio Input Connectors 7 RCA | XLF
Audio Output Connectors 7 pairs of heavy-duty, gold-plated
binding posts
Performance
Output Power 300W RMS per channel into 8 Ohms from 20Hz to 20kHz
450W 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 300W/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 176W out @ 8 Ohms
Input Impedance Minimum 10KOhms
Gain Minimum 31dB
Other
Trigger Input 3.3 to 24 Volts DC ± 10%, 3.5mm T/S jack
Power Requirements 120V 60Hz 12 Amp (domestic)
230V 50Hz 7 Amp (export)
Height 9.5-inches
Width 17.2-inches
Depth 20.3-inches (including handles)
19.3-inches (not including handles)
Weight 138 pounds (62.73 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.
SPECIFICATIONS ZX-7
· 300 watts x 7 channels
· Full Balanced Topology
· Completely symmetrical circuit design
· Dual oversized toroidal transformers
· 4 hand-graded output devices per channel
· Advanced optically coupled protection for each channel

RX–7 Power Amplifier GX–7 Power Amplifier
· 125 watts x 7 channels
· Oversized toroidal transformer
· Separate power supply for each channel
· Independent Protection circuitry for each channel
· Stable with mismatched, reactive or unusual loads
· 200 watts x 7 channels
· Full Balanced Topology
· Completely symmetrical circuit design
· Dual oversized toroidal transformers
· 4 hand-graded output devices per channel
· Advanced optically coupled protection for each channel

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.
SPECIFICATIONS 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