Lexicon CX Brochure

Power Amplifier

P o wer Amps

> 140 watts per channel, capable of driving 2 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 balanced or unbalanced inputs

>

> Stable with mismatched, reactive, and unusual loads

Thermal pr

>

otection for each channel

> Loudspeaker protection against DC and frequencies below 10Hz

> Protection against electrical and component failures, short circuits,

wiring faults, and internal errors

> THX Ultra2 Certification

> Heavy-duty, gold-plated output connectors

> Trigger input for power control from connected components

Separate ground-lift switch for each channel

>

> Multi-color channel status LEDs

Optional rack mount kit

>

Based on Lexicon's reference-quality LX Power Amplifiers, the CX-7 and

fiers to accommodate a wide-range of loudspeaker connectors, including

CX-5 represent a lower-output version of their award-winning counter-

parts.The CX amplifiers have THX Ultra2 certification and the same

gorgeous industrial design as the other products in the Lexicon line -

they are a beautiful complement to any home theater.

Available with seven or five channels, the CX amplifiers are designed

with massive toroidal transformers and several oversized capacitors,

allowing them to retain ample power reserves even when all channels

are delivering maximum output. Each channel uses four custom designed,

hand-graded output transistors to drive 140 watts into 8 ohms.They are

compatible with loudspeaker impedances of 2 ohms and above.

The CX amplifiers feature a convection cooling system, which results in

ultra-quiet performance.An extensive protection system also makes

them extremely reliable.Thermal protection monitors the temperatures

of the chassis, main power transformer, and heat sinks, deactivating chan-

nels that exceed safe operating temperatures. Current protection limits

bare wires, banana plugs, and spade connectors. In addition, a separate

ground-lift switch is provided for each channel to help eliminate the

audible hum that sometimes results from multiple grounding paths. For

even greater flexibility, a rear panel trigger input connector provides

power control of the amplifiers from compatible associated components

such as the MC-12 and MC-8 Digital Controllers.When one of these

Lexicon digital controllers is connected, the power status of the digital

controller and the CX amplifier can be synchronized for added conven-

ience.

The CX-7 and CX-5 achieve the highest standards of power and per-

formance, delivering superior reproduction of music and film sound-

tracks.An impressive combination of 140-watt channels, selectable bal-

anced or unbalanced inputs, and advanced protection features make the

CX amplifiers capable of handling all but the most demanding applica-

tions.

the quantity of current delivered to the output transistors based on the

amount of headroom available. DC protection prevents DC and frequen-

cies below 10Hz from reaching the loudspeakers. In addition, the CX

amplifiers offer protection against electrical and device failures, short cir-

cuits, wiring faults, and internal errors.To protect themselves and associ-

ated components, the amplifiers automatically deactivate if these condi-

tions occur. Dedicated multicolor channel status LEDs on the front panel

provide instant notification if dangerous conditions arise.

Each channel includes selectable balanced (XLR) or unbalanced (RCA)

inputs. Heavy-duty, gold-plated output connectors allow the CX ampli-