Matthew James - Cello Audio

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Q: It is my understanding that you have also developed new cables for both interconnecting electronic components and for connecting amplifiers to speakers.

A: Matthew James has developed the next generation of Cello Strings Interconnect and Speaker Cables. Designed with the basic presumption that the ideal conductor of electrical signal is both wide and flat, Cello Strings are constructed using flat conductors of very pure silver for the interconnects and copper for the speaker cables.

The conductors in both cables are quite substantial, AWG 18 for the interconnect cables and AWG 10 for the speaker cables. In both cables the conductors are very close to each other, separated by ultra-thin layers of polyester terepthalate, insulated with kapton, and twisted together within a jacket of Lexan polycarbonate polymer. The effect is that the cables are very insensitive to distortion from AC line or RF interference.

The Cello Strings Speaker Cables are low inductance (4nH per foot) and low impedance (@3 ohms) and have a loop resistance of 1.1mohms per foot. Low inductance and a reasonable amount of capacitance (1.35nF per foot) results in less loss of signal in the highs and lows respectively. The low impedance matches as closely as possible the impedance of speakers, eliminating the signal reflections that are the result of mismatches between cables and speakers which add distortions to the upper midrange and high frequencies, as well as the lower midrange via entry into amplifier feedback loops. Cello Strings Speaker Cables are terminated with high quality Rhodium plated copper spades.

Cello Strings Interconnect Cables incorporate the same type of flat, solid conductors, although in this instance, manufactured in silver, and insulated with a micro-thin dielectric film of kapton. For complete EMI and RF noise rejection, the interconnects include a ground plane placed between the two signal carriers. Cello Strings Interconnect Cables are available in single ended configuration, terminated with RCA connectors, or in a balanced configuration, terminated with either high quality XLR or Fischer connectors, for use with Cello products previously manufactured by Cello, Ltd.

Q: You had mentioned earlier that during the past three years Matthew James has built and revised all of the electronic products previously manufactured by Cello, Ltd. Does that mean that there is a revised version of those products which will eventually be brought to market by Matthew James under the Cello brand?

A: Not all of them. Some products, quite frankly, we do not like enough to bring back to market, even in their revised form. Or we have found that there is another product that has fallen out from our research and development that makes their production redundant within the line. Certainly we intend to manufacture revised versions of the Audio Suite, Audio Palette, Master Supply, and Performance amplifier. All of these are complete in basic design and need to be brought into the new industrial design introduced with the Rhapsody amplifier. They have been used as the standard against which all other designs are measured.

It was our feeling, however, that the first product from Matthew James needed to be a completely new design, something that was not a revision of a previously existing design, even if some of it's basic elements were previously found in the original designs of Cello, Ltd., or the revisions we had developed since the summer of 2000. There is also a very high powered amplifier, named the Cello Chorale, which is still unfinished in design but will also be brought to market.

The next product to be brought to market however, is to be the Cello Encore Preamp v.5. It will have a phono input, (3) stereo line level inputs, and (1) 6-channel input along with a 6-channel output and, of course, stereo out, and a separate power supply with choke input. There will be a main volume control, 59 position, exactly as in previous Cello Encore preamps, Audio Suite and Audio Palette, with a +/-6dB control for the center channel and surround channels (same as the 500Hz and 2kHz controls of the Palette) and a +/-10dB control for the sub channel. All of the basic work is done and I am already listening to it in my system. I would hope that it will be in production by August of this year.

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  Matthew James
84 Long Hill Road
Middlefield, Connecticut 06455 USA
860 349-5999   Fax 860 349-0579
Email - jimm@matthew-james.net