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ZERO-Boxes Autoformers

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ZERO-Boxes Autoformers

Post by pak wong on Wed Dec 06, 2017 1:22 pm

For sale is a pair of used Paul Speltz's ZERO-Box Autoformer. Made in USA. Condition: 9/10. Comes with two pair of ANTICABLE banana connectors for connection from ZERO-box to speakers. A smart solution for matching low impedance speakers with small amplifier, especially vacuum tube Output Transformer Less (OTL) design.

It is well understood the importance of getting a well matched amplifier for your speakers, or vice versa; getting the proper speakers for your amplifier. Now you can make virtually any amp/speaker combination work well together with the ZEROs.

The ZEROs are the simplest type of transformer called an auto transformer or autoformer. They are used to multiply the impedance of any speaker so that it "feels" like the optimum load for the amplifier being used. They are very helpful in matching speakers to amplifiers. By adjusting the speaker's impedance, both the damping factor and the maximum power transfer of the amp/speaker can be tailored for best sound. Almost all amplifiers sound better when driving a higher impedance speaker, simply because amplifiers produce less distortion when driving less current.

Some interesting review:

6 / by Srajan Ebaen

Enjoy the / by Wayne Donnely

TNT-AUDIO / by Richard George

Price: 2200 Contact: Wong 019-3885211

pak wong
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Number of posts : 7
Age : 54
Location : petaling jaya
Registration date : 2015-08-11

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