INTRODUCING

CAPELO

Distortion cancelling speaker technology

Technology_logo_concepts_capelo

Capelo makes common speakers sound as good as the World's best and then takes the World's best even higher

What is Capelo?

Capelo is a Phase-Difference electronic circuit operating 20Hz – 20KHz. When used for controlling the signal to pairs of speakers, each speaker will cancel the Distortion Harmonics of the other, in air, acoustically.

THE CAPELO PRINCIPLE 0-60-90-150 Click for Patent details

If two identical sinusoidal signals are phase-shifted by 90 degrees relative to each other, and each of them suffers the generation of an identical amount of second harmonic distortion along their respective signal paths, when the signals are finally added together, the resultant signal will contain only the fundamental. The second harmonics will be cancelled. Likewise, if the signals are phase-shifted by 60 degrees relative to each other, the third harmonic distortion will be cancelled.

This principle can be applied across an audio frequency band to eliminate harmonic distortion from loudspeakers and amplifiers. The summation occurs acoustically in the air between the loudspeakers and listeners.

Bluacs has worked out how to use this principle to simultaneously cancel both the second and the third harmonic distortion or, if required, any number of harmonics. For example, to simultaneously cancel both the second and third harmonic distortion, four identical channels are required, with separate amplifiers and loudspeakers, and constant phase differences of 60, 90 and 150 degrees across the audio band relative to the reference channel. Bluacs calls this Capelo configuration the “Quad” mode.

 

CapeloGraph_1b

Measured SPL of the fundamental and distortion harmonics  before applying Capelo

CapeloGraph_2

Measured SPL of the fundamental and distortion harmonics after applying Capelo

CAN WE HEAR THE DIFFERENCE ?
Yes, absolutely! Speakers sound great with Capelo. The level of Harmonic Distortion reduction achieved with Capelo is very audible.

 

CONSTRUCTION
Capelo can be implemented in Analog and in Digital.

 

COST OF IMPLEMENTATION
We estimate that the cost of implementing Capelo is cost neutral. There is no scientific basis for why 4 small speakers should cost more than one large speaker.

 

NOTES

1. Expected date for full documentation release by WIPO is 1st Feb 2018.

2. Please do your own tests and measurements and evaluations. We will assist in any way we can.

3. Speak to the inventors : capelo@bluacs.com

BLUACS
Bluacs® Technologies are based upon simple solutions to complex problems. This is derived from a belief that speaker design have become increasingly but unnecessarily complex, especially as the limits of performance improvements are being tested.
Bluacs® Technologies are based upon simple solutions to complex problems. This is derived from a belief that speaker design have become increasingly but unnecessarily complex, especially as the limits of performance improvements are being tested.

6 Sexton Court, Endeavour Hills. 3802, Victoria, Australia.

+61 412 488 207

enquiries@bluacs.com