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Infinity Column II

Three Way Loudspeaker System (1977-78)

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Infinity Column II


A high-efficiency speaker incorporating new developments in driver technology is Infinity's Column II.

To add spaciousness, one of its two piezo electric tweeters faces the rear. These specially developed, remarkably clean sounding tweeters, unlike other piezo electric devices, use no horns, but act as direct radiators.

To prevent interference from the woofers, a new 10 centimetre midrange driver is sealed in its own sub enclosure.

To provide excellent transient response in the midbass range, a 25 centimetre woofer utilizes an unusual low mass radiating element. To couple bass output to the room, a 25 centimetre subwoofer faces downward, near the floor.

Radiating area of the two woofers, configured in what audio engineers call a dual driver staggered resonance system, is 60% greater than that of a single larger 30 centimetre woofer.

Column II can deliver plenty of bass and plenty of power, without the roughness and midrange peaks typical of many high efficiency speakers.


Type: 3 way, 5 driver loudspeaker system

Frequency Response: 35Hz to 20kHz

Recommended Amplifier: 15 to 250W

Crossover Frequency: 750, 5000Hz

Impedance: 8Ω

Sub Bass: 1 x 250mm

Bass: 1 x 250mm

Midrange: 1 x 100mm

Tweeter: 2 x piezo electric

Grille: black cloth, removable

Finish: hand rubbed, oiled walnut veneer, smoked glass top

Dimensions: 1040 x 360 x 320mm

Weight: 39kg

Year: 1977


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Reviewed Dec 14th, 2019 by

Bought these back in 1980. Was impressed then, running them with a Nikko NR1415 Receiver, sound was so good, they blew away most of the other speakers in the sound room. Here they are in 2019, still impressing me, running them on a Cambridge Audio Topaz receiver and updated cables. I love these speakers! Had to replace the bass drivers in 1988 due to foam surrounds deteriorating but no problem since. The crossovers may be due for some new components but they're 39 yrs old after all!

Reviewed Apr 28th, 2014 by

I bought these at an estate sale. Had listened to them back in the day and was very impressed.At the time(I was a senior in college)and could not afford the $1200.00 price. The sound is outstanding and if you get the chance to buy don't hesitate.

Reviewed Mar 13th, 2014 by

I simply have not known of another that can take the beating these do and still impress everybody with the clarity. Woman love the sound, musicians talk about hearing all the background and to me they always sooth the beast. FIVE years out of warranty Infinity CA sent me TWO NEW mids. When I called to explain I could not afford them she said just enjoy. About eleven (11 !!!) yrs out of warranty I called Infinity CA to find out about foam kits....yep within a week I had a box arrive with FOUR NEW POLY WOOFERS! I never have written but told anybody at any chance about Infinity and how they treat...funny word TREAT their customers. Who she was I protected. Now is the time to let the world know what used to be and is one very very special Lady! THANK YOU sweetheart and thanks Rich Reed for giving them to me in 1979. ( He melted a few bits that Infinity also sent me!)



re: Column II

I bought these speakers new back in 1978(?) or so. Kept them for all these years without really playing them. The foam surrounds went away after many years so I re-edged them a couple of years ago. I now have them set up as the main speakers on my home theater system. My son kept telling me I would need a sub for the system. When he came home and heard them for the first time they blew him away. He said 'Dad, I don't think you need a sub after all.'
I'm sure glad I kept them and can remember paying $220 each at the time, on sale no less. Once I heard them no other speakers could come close for the money. Now, they really make the movies come alive. I just hope they don't shake the house down.

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