Overview
The ZX-7 features a true balanced topology. Each of its seven channels consists of two amplifier stages, one for each side - positive and negative - of the wave form. The positive input signal is amplified by the positive amplifier and the negative input signal is amplified by the negative amplifier when a balanced signal is applied to the input. 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.
Along with its exceptional sonic performance, the ZX-7 is equipped with sophisticated protection capabilities. Advanced optically coupled protection circuitry safeguards the ZX-7 from damage caused by excessive heat, short-circuits, device failures, miswiring, internal faults, reactive loads, and protects loudspeakers from DC and frequencies below 10Hz. Because the protection circuitry is optically coupled for each channel, it is completely isolated from the audio signal path, eliminating any potential degradation of the audio signal inherent in traditional protection schemes.
Specification
| Audio Inputs and Outputs |
| ZX-7 Inputs | 7 RCA, 7 XLR |
| ZX-7 Outputs | 7 pairs of gold-plated binding posts |
| Performance |
| Output Power | 300W RMS per channel into 8from 20Hz to 20kHz |
| Frequency Response | 20Hz to 20kHz +0.1dB/-0.2dB |
| THD | Less than 0.05% at full rated FTC power 20Hz to 20kHz |
| Less than 0.005% at full FTC power at 1kHz |
| Signal-to-Noise Ratio | Greater than -110dB below rated full rated power A-weighted |
| IM Distortion | Less than 0.03% at full rated power |
| Crosstalk | Greater than -80dB @ 1kHz (30kHz bandwidth) |
| Damping Factor | Greater than 200 @ 20Hz (ref 8) |
| Input Sensitivity | 2 volts for 300W out into 8 |
| Input Impedance | Minimum 10K |
| Gain | 28dB ± 0.5dB |
| Other |
| Trigger Input | 3.3V minimum - 24V maximum DC |
| Power Requirements | Two circuits each rated 120VAC 12A or one circuit rated 230VAC 8A 50/60Hz |
| Dimensions and Weight |
| Height (with feet) | 9.7 inches (246mm) |
| Height (without feet) | 8.7 inches (221mm) |
| Width | 17.3 inches (440mm) |
| Depth | 20.3 inches (516mm) (overall with handles) |
| Weight | 145lbs (65.2 kg) |
| Rack Mounting | Optional brackets are available for mounting the amplifier in a standard 19-inch equipment rack |
| Requires 5 Rack Units |
About the brand
Lexicon manufactures high-performance audio/video components, including the flagship MC-12 surround controller, and from the company's inception in 1971 to the present day, Lexicon has been recognized as a leader in digital audio processing. The company's ground-breaking multichannel technologies such as LOGIC 7 are found in high-end residential home theaters and automotive systems around the world.
Warranty Information: Processors - 3 years, Players - 1 year, Amplifiers - 5 years. A valid serial number is required for warranty coverage.
Reviews
Lexicon
|
 |
