Published On: September 23, 2008

Lexicon Offers ZX-7 Power Amplifier

Published On: September 23, 2008

Lexicon Offers ZX-7 Power Amplifier

Lexicon has announced the introduction of a new amplifier to the company's products, featuring 300 watts per channel as well as much more. This new multi-channel amplifier is the Lexicon ZX-7.


Lexicon® , Inc., a Harman International company (NYSE: HAR), introduces its ZX-7 Power Amplifier. Featuring 300 Watts per channel into 8 Ohms (450 Watts per channel into 4 Ohms), the ZX-7 was specifically designed to complement Lexicon's MC series of Digital Controllers.

The ZX-7 is a fully balanced power amplifier from input to output with completely symmetrical circuit design. In other words, each channel consists of two complete amplifier circuits: one driving the positive input signal and the other driving the negative input signal. With 7 channels, this translates into 14 separate amplifier circuits per chassis. The advantage of this topology over single-ended designs is that it exhibits lower noise, lower distortion and immunity from stray electronic fields and anomalies in the input signal from outside interference. Internally, the ZX-7 utilizes dual massive toroidal transformers and ample filter capacitance.

The ZX-7 also employs heavy-duty, chassis-mounted input and output connectors including balanced audio inputs via RCA or XLR connectors. A trigger input connector (to power on and off with the preamp/processor) allows the amplifiers to be controlled with associated components such as the Lexicon series of preamp/processors.

Equipped with advanced thermal, current, DC and speaker protection, the ZX-7 power amplifier can be matched with most loudspeakers. The ZX-7 also features embedded protection against short circuits, component failures, mis-wiring and internal faults.

The Lexicon ZX-7 Power Amplifier is available at an MSRP of $7999.00.

The ZX-7 power amplifier highlights:

• Fully balanced topology
• 300 Watts per channel (7) @ 8 Ohms from 20 Hz to 20 kHz
• 450 Watts per channel (7) @ 4 Ohms from 20 Hz to 20 kHz
• Frequency Response 20 Hz to 20 kHz +0.1 dB/-0.2 dB
THD Less than 0.05% at full rated FTC power 20 Hz-20 kHz; Less than 0.005% at full FTC power at 1 kHz
• Signal-to-Noise Ratio: Greater than -110 dB below rated full rated power A-Weighted
• IM Distortion: Less than 0.03% at full rated power
• Crosstalk: Greater than -80 dB @ 1 KHz (30 kHz bandwidth)
• Damping Factor: Greater than 200 @ 20 Hz (ref 8 Ohms)
• Input Sensitivity: 2 volts for 300W out into 8 Ohms
• Input Impedance: Minimum 10K Ohms
• Gain: 28 dB ± 0.5 dB
• Trigger Input: 3.3V minimum to 24V maximum DC
• Audio Input Connectors: 7 RCA, 7 XLR
• Audio Output Connectors: 7 pairs of gold-plated binding posts
• Dual oversized toroidal power transformers with lots of filter capacity ensures rock-solid bass
• High-power supply voltage for extra headroom at the outputs
• Stable with mismatched, reactive, or unusual loads
• Thermal protection against overheating
• Rack-mount option available
• Staggered power-on sequence to reduce noises from connected equipment and to limit turn-on AC draw
• High damping factor (no output relays) ensure realistic, impressive bass transients
• Weight: 145 lbs (65.2 kg)
• Height: 9.70 inches (246mm) (with feet), 8.70 inches (221mm) (without feet)
• Width: 17.3 inches (439mm)
• Depth: 20.3 inches (516mm) (Overall with Handles)

Subscribe To Home Theater Review

You'll automatically be entered in the HTR Sweepstakes, and get the hottest audio deals directly in your inbox.
When you buy through links on our site, we may earn an affiliate commission. Your support is greatly appreciated!
© JRW Publishing Company, 2020
magnifiercross linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram