Owner`s manual

MAGNAT QUANTUM 657, 655, 653 – BI-WIRING AND BI-AMPING

Bi-wiring means using separate cables to carry the high and low audio frequencies. Bi-amping takes this

idea one step further and uses separate power amplifiers as well as separate cables for high and low

frequencies. Bi-amping in particular produces an additional improvement in sound reproduction quality.

The special connection terminals of the Quantum loudspeakers support both conventional connection and

operation in bi-wiring and bi-amping modes. There are four screw terminals on each speaker. The top

pair are for the tweeter (high frequencies), the lower pair for the woofer (low frequencies). The factory-

installed metal strips connecting the positive and negative terminals are for conventional 2-wire connection

and must be removed for bi-wiring and bi-amping operation. The pictures below show the correct set-up

for conventional operation (Fig. 4a), bi-wiring (Fig. 4b) and bi-amping (Fig. 4c).

MAGNAT QUANTUM CENTER 63

The Quantum Center 63 loudspeaker visually and acoustically ideally matches the other Quantum

models. The loudspeaker is placed immediately on or under the television set. Otherwise please adhere

to the general recommendations outlined in the previous chapters.

MAGNAT QUANTUM 625A

The Quantum 625A active subwoofer visually and acoustically ideally matches the other loudspeakers in

the Vica series. Please refer to the separate operating instructions supplied with this product.

CONNECTING TO AN AV RECEIVER

Figs. 5 and 6 show two different methods of connecting to AV receivers.

Fig. 5: AV receiver without subwoofer output.

Fig. 6: AV receiver with subwoofer output.

HOW TO AVOID DAMAGE TO YOUR VALUABLE SPEAKERS

All MAGNAT loudspeakers are designed and built for optimum sound reproduction with the tone controls

in the central position – i.e. with “linear” amplifier output. Turning up the bass and treble controls too far

delivers more power to the woofers and/or tweeters, and at high volumes this can actually destroy the

speaker units!

If the output of your amplifier is significantly higher than the rated power handling capacity of your speakers

extremely high volumes can physically destroy your speakers. This doesn’t actually happen often but you

should be aware that it is possible.

Weak amplifiers with low output ratings can actually be more dangerous for your speakers at medium

volumes because weak amplifiers may overload much faster than powerful ones and this causes

measurable and audible distortion, which is extremely dangerous to your loudspeakers.

Always turn the volume down immediately as soon as you hear distortion! If you like listening to loud music

make sure that your amplifier can deliver at least as much power as the speakers’ power-handling rating.

THE SOUND YOU CAN’T HEAR...

Amplifiers, tuners and CD players can all produce inaudible high-frequency signals – and this doesn’t only

apply to cheap products. If your tweeters fail at low or medium volumes you should have a qualified

technician check your system components for dangerous inaudible signals.