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Infinity Quantum Jr

Three Way Loudspeaker System (1977)

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Infinity Quantum Jr


The Monitor Jr was nicknamed by Infinity 'our small concert hall' for it's prodigious realism. We have replaced it with a more advanced design in the same size enclosure and with roughly the same price - the Quantum Jr.

As you can see, Infinity has improved on this previous model by incorporating the EMIT tweeter from the Quantum Line Source.

Another improvement is the creation of a low frequency driver that provides both a good transient response, deep bass and huge power.

More than ever, the sound follows the performance. You get the performance of a three way speaker with true musical reproduction, and a price that represents exceptional value.

The use of six pairs of speakers on in the Quantum Jr allows you to hear every instrument clearly, and a natural sense of depth arises.

Try It. Listen. Discover the high quality sound of the Quantum Jr


Type: 3 way, 3 driver loudspeaker system

Frequency Response: 40Hz to 32kHz

Recommended Amplifier: 25 to 200W

Crossover Frequency: 600, 4000Hz

Bass: 1 x 300mm

Midrange: 1 x 38mm dome

Tweeter: 1 x liquid cooled EMIT

Grille: dark fabric, removable

Finish: varnished walnut

Dimensions: 630 x 370 x 300mm

Weight: 22.7kg


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This website is not affiliated with or sponsored by Infinity. To purchase Quantum Jr spares or accessories, please contact the company via their website or visit an authorised retailer.