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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 the best sound.
Almost all amplifiers sound best when driving a 16 ohm speaker. If your
speakers are 8 ohms or less, the ZEROs will improve
your music.
The three different versions of the ZEROs shown here are all made of the same original toroidal autoformer, and all have the ability to multiply a speakers impedance by 2x, 3x, or 4x. For example, the ZERO can transform a 4 ohm speaker into an 8 ohm, 12 ohm, or 16 ohm speaker depending on which two of four leads/connections are connected to the amplifier. They are very helpful in matching speakers to amplifiers, even amplifiers that already have a variety of output taps available realize benifits. "Best tweak ever", "improvements dwarfed the benefits of the NORDOST Valhalla cables", "more low level detail", "Best investment in my system", "better than Prozac", "No sonic signature detected", "At first I was somewhat skeptical...I cannot believe how wrong I was", "Really tightens up the bass", "I am convinced that your ZEROs saved my system", "I was skeptical... Boy, was I wrong!", "Sound stage is deep and wide", "cannot stop listening!", "they're a bargain", "I can't imagine a better upgrade at several times of the cost", "there should be a lot more people buying these from you". For a complete and un-edited list of testimonials, click the FIELD REPORTS button below. |
 ZERO-Box |
 ZERO-Cable |
 DIY-ZEROs |
 Field Reports (testimonials) |
 2X |
 4X |
 The Zero Story |
 Frequently Asked Questions |
 White Paper |
