Infinity Quantum jr - $450 (Near Westside)

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condition: good

make / manufacturer: Infinity

model name / number: Quantum jr

size / dimensions: 25x14.5x12

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Nice set of Infinity Quantum jar's with rare factory stands. These are great sounding speaker in nice condition.

The Infinity Quantum Jr (introduced 1978) is a vintage 3-way bookshelf speaker renowned for its detailed sound, utilizing a 12-inch woofer, 1.5-inch dome midrange, and the famed EMIT tweeter.

Key Technical and Performance Details:
Drivers: 1 x 12" woofer, 1 x 3.8 cm dome mid, 1 x EMIT tweeter.
Frequency Response: 40 Hz - 32 kHz ($\pm$3dB).
Impedance/Power: 4-ohm nominal; Recommended 25–200 Watts RMS.
Dimensions: Approximately 25x14.5x12

post id: 7925220833

posted: 2026-04-02 14:32

updated: 2026-05-02 09:17

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Infinity Quantum jr - electronics - by owner - sale - craigslist

Nice set of Infinity Quantum jar's with rare factory stands. These are great sounding speaker in nice condition. The Infinity Quantum Jr (introduced 1978) is a vintage 3-way bookshelf speaker...