Lexicon LX Brochure

Power Amplifiers

P o wer Amps

> 200 watts per channel, capable of driving 2 ohm loudspeaker

impedances

> Bridgeable 400 watt channels compatible with 4 ohm loudspeaker

impedances

> Oversized toroidal power transformer with low DC resistance and

advanced thermal protection

> High power supply voltage for extra output headroom

Four custom-designed, hand-graded output transistors per channel

>

> Selectable XLR, RCA, or 1/4-inch T/R/S inputs

> Stable with mismatched, reactive, and unusual loads

> JTS thermal protection

> Quiet, microprocessor-controlled forced-air cooling

> Loudspeaker protection against DC and frequencies below 10Hz

> Protection against electrical and component failures, short circuits,

wiring faults, and internal errors

> THX Ultra Certification

> Heavy-duty, gold-plated outputs

> Trigger input for power control from connected components

Gr

>

> Multi-color channel status LEDs

> Optional rack mount kit

ound-lift switch

Designed to exacting standards, the LX-7 and LX-5 provide top per-

formance and power even under the most rigorous operating condi-

tions.With extensive protection circuitry, they deliver maximum per-

formance without risking failure.The strong industrial design makes

these amplifiers perfect companions for Lexicon processors and disc

players.

To protect themselves and other components in the system, the LX-7

and LX-5 automatically deactivate if device failures, short circuits, wiring

faults, or other internal faults occur. DC protection also prevents DC

and other frequencies below 10Hz from reaching the loudspeakers.

Dedicated multi-color LEDs on the front panel provide instant channel

status information.

The LX amplifiers deliver ample power in a compact package.With indi-

vidual amplifier cards, each channel drives an impressive 200 watts into 8

ohms, and is stable into 2 ohms. Bridgeable architecture makes it possi-

ble to drive even higher-power outputs, combining up to four 200-watt

channels into two imposing 400-watt channels. Each 200-watt channel is

capable of driving loudspeaker impedances of 2 ohms and above, while

each 400-watt channel can drive impedances of 4 ohms and above.

Massive toroidal power transformers and several oversized capacitors

allow the amplifiers to retain ample power reserves even when all chan-

nels are delivering maximum output.

Following the Lexicon design philosophy of flat frequency response, low

distortion, and high signal to noise ratio, the LX amplifiers deliver the

finest reproduction of extreme music and film soundtracks with excep-

tional fidelity. Selectable balanced (XLR), unbalanced (RCA), and 1/4-inch

Tip/Ring/Sleeve inputs and four custom-designed, hand-graded output

transistors per channel allow them to reproduce the subtlest sonic

details with stunning clarity and dynamic range. Heavy-duty, gold-plated

output connectors allow the LX amplifiers to accommodate a wide

range of loudspeaker connectors, including bare wires, banana plugs, and

spade connectors.A ground-lift switch is also available to minimize the

audible hum that can result from multiple grounding paths.

Sophisticated Junction Temperature Simulation (JTS) thermal protection

uses an internal processor to predict output transistor temperatures.

Unlike similar technologies, JTS combines the current voltage of each

output transistor with heat sink temperatures to arrive at an accurate

temperature prediction.As a result, JTS prevents overheating before it

occurs. In addition to JTS, the LX amplifiers feature thermal protection

for each channel and the main power transformer. If heat sink or main

power transformer temperatures exceed a certain level, the correspon-

ding channel or the main power transformer deactivates until tempera-

tures return to within a normal operating range.

A trigger input for power control from connected components and an

optional rack mount kit make the LX-7 and LX-5 easy to integrate into

any home theater system.