LX amplifiers are designed to meet the highest standards of performance and sound quality. In addition, THX Ultra® certification ensures that the amplifiers meet the highest standards set forth by LucasFilm's Home THX division.
The LX amplifiers include many unique technologies that allow them to deliver exceptional performance, even under extreme operating conditions. The amplifiers feature Junction Temperature Simulation (JTS) advanced thermal protection. An internal JTS computer predicts internal temperatures and protects output transistors from overheating, allowing the amplifiers to achieve maximum performance with a minimum number of output transistors. This design enhances performance and reliability.
In addition to JTS, the LX amplifiers feature thermal protection for each channel and the main power transformer. The amplifiers also provide DC protection for each channel, preventing DC and frequencies below 10Hz from reaching the loudspeakers.
The LX amplifiers offer high power output that can be configured for almost any home theater installation. The LX-7 has seven 200 watt channels and the LX-5 has five 200 watt channels. Channel pairs can be bridged to provide 400 watts in addition to the remaining 200 watt channels. Heavy-duty loudspeaker outputs and selectable balanced or unbalanced audio inputs are
A rear panel trigger input allows the LX amplifiers to be powered on and off by external devices. A ground lift switch helps eliminate audible hum caused by multiple grounding paths in the system.
Built to Lexicon standards, LX Series Power Amplifiers establish a new benchmark for home theater amplifiers. An unbeatable combination of sound quality, power, flexibility and reliability make the LX Series amplifiers at home in virtually any system.
200 watts per channel (8ohm)
Four hand-graded, custom output transistors per channel
Bridgeable architecture for higher output (400watts per channel)
Oversized toroidal power transformer with extraordinarily low DC resistance and thermal protection
High power-supply voltage(160V) for extra headroom at the outputs
THX Ultra® certification
Junction Temperature Simulation (JTS) to provide maximum performance from the output transistors
Thermal protection from overheating
Loudspeaker protection from DC and frequencies below 10Hz
Protection against short-circuits, device failures, miswiring and internal faults
Stable with mismatched, reactive or unusual loads
Quiet, microprocessor controlled forced air cooling to minimise chassis size
Compatible with 2ohm loudspeaker impedances (individual mode)
Trigger input for power control from an external device
RCA, XLR and ?inch Tip/Ring/Sleeve inputs
Ground lift switch
Heavy-duty gold plated outputs
Multi-colour channel status LEDs
Rack mount option available
Audio Inputs and Outputs
7 RCA, 7 XLR (including 1/4" T/R/S)
5 RCA, 5 XLR (including 1/4" T/R/S)
7 pairs of heavy-duty binding posts
5 pairs of heavy-duty binding posts
Amplifier performance specifications are identical in INDIVIDUAL and (BRIDGED) modes, with the exception of the output power and Minimum Speaker Impedance. (Bridged) Mode includes channels 1 & 2 and 3 & 4 only.
200W at 8, all channels driven 20Hz - 20kHz
400W at 8, (BRIDGED)
Minimum Speaker Impediance
2, INDIVIDUAL Mode
4, (BRIDGED) Mode
20Hz - 20kHz ±0.1dB
10Hz - 100kHz, +0.5/-3dB
Below 0.02%, 200W at 8, INDIVIDUAL Mode
4, all channels driven 20Hz - 20kHz
111dB 22kHz bandwidth, balanced inputs
109dB, 22kHz bandwidth, unbalanced output
(ref 200W at 8)
Below 0.03% at 200W
-80dB at 1kHz, minimum
250 at 20Hz, minimum
2V in for 100W out at 8, balanced inputs
1V in for 100W out at 8, unbalanced inputs
120V 60Hz 20A (Domestic)
230V 50Hz 12.5A (Export)
Dimensions and Weight
Height (with feet)
Height (without feet)
3 rack units
56lbs. (25.4kg) LX-7
52lbs. (23.6kg) LX-5
Optional brackets are available for installing either unit in a standard 19" equipment rack (3 rack units required).