Martin Colloms

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Martin Colloms  |  Dec 31, 2009  |  First Published: Dec 31, 1990  |  0 comments
A freelance reviewer's workload is erratic. On the odd occasion one might have a few moments' respite, while at other times the coincidence of multiple deadlines for copy results in several weeks of panic. As I write this missive I have just completed one such overload period covering so much equipment that I thought that it would be worthwhile to look back and take stock at the audio in the past decade (footnote 1).
Martin Colloms  |  Jul 31, 2009  |  First Published: Sep 01, 1989  |  0 comments
Rather a mouthful, the name of this digital decoder is derived from that of the designer, Robert Wadia Moses. The "computer" part of the title relates to the custom digital filter function generated by a set of 32-bit microprocessors: for simplicity's sake, I shall abbreviate the name to "WD1000." A more expensive version, called the '2000, sells for $6995, and carries some additional features and details. The resampling rate is increased to 64x in the '2000, with the additional optical and digital input switching and the main power supplies each contained in separate additional enclosures.
Thomas J. Norton, Martin Colloms  |  Jul 20, 2008  |  First Published: Jan 20, 1996  |  0 comments
"Where do you want 'em?" Doug'n'David (of Stereophile's shipping and receiving, not your favorite morning drive-time talk radio co-hosts) had just wrestled over 500 lbs of cocooned Wilson WITT loudspeakers onto the floor of my garage. Like the Thiel CS7s I had parted with just a few weeks earlier, the WITTs came packed in solid, heavy wooden crates. The pained expressions on Doug'n'David's faces indicated that it was time for me to start reviewing minimonitors! The unpacking went more smoothly than I expected, but this is clearly a pair of loudspeakers that demand to be delivered, uncrated, and set up by a dealer.
Martin Colloms, Wes Phillips  |  Oct 28, 2007  |  First Published: Jun 28, 1994  |  0 comments
The Krell KRC-2 can be regarded as a remote-controlled successor to Krell's successful KSL preamplifier of a few years back. The outboard Krell Phono Equalizer (KPE) is a separate box powered from the KRC-2. Priced at $850, it contains a printed circuit board very similar, in fact, to the $499 unit that can be fitted within the KRC. The KPE and KRC phono stages are well-designed universal units; if someone has the need for a stand-alone phono equalizer of Krell KRC standard, a separate power supply may be purchased for the KPE. It is also an advantage to be able to locate the KPE head amplifier in a hum-free zone near the LP turntable.
Martin Colloms  |  Oct 28, 2007  |  First Published: Jun 28, 1994  |  0 comments
There's always a certain amount of jockeying for position at the very top of the High End. Every few months, a new star burns brightly, getting all the attention. While the constant turnover at the cutting edge helps to define the state of the art, audiophiles should keep their eyes on the longer term. It's a company's track record—examined over a period of years—which defines its position in the market and the credibility of its products.
Martin Colloms  |  Sep 09, 2007  |  First Published: Jun 09, 1994  |  0 comments
There's always a certain amount of jockeying for position at the very top of the High End. Every few months, a new star burns brightly, getting all the attention. While the constant turnover at the cutting edge helps to define the state of the art, audiophiles should keep their eyes on the longer term. It's a company's track record—examined over a period of years—which defines its position in the market and the credibility of its products.
Martin Colloms  |  Jun 03, 2007  |  First Published: Dec 03, 1999  |  0 comments
Rumor had it that if the MF2500 amplifier had gotten any better in development, Conrad-Johnson would have had to include it in their "Premier" series. However, C-J's intention was to hold to the lower price of their established MF series, and so they have. Rated at 240Wpc and retailing for $3495, the '2500 is the core model of Conrad-Johnson's current range of "MF" power amplifiers. Its companion MF2250 offers 120Wpc, while the MF5600 delivers 120Wx5 for multichannel home-theater applications.
Martin Colloms  |  Jun 03, 2007  |  First Published: Jan 03, 1999  |  0 comments
Many pundits in our industry say that CD is under threat from Super Audio CD, DVD-Audio, and dual-layer CD/DVD technologies. Conflicting stories abound, and even though I'm supposed to be well-informed, I've found some of them hard to sort out! For example, Michael Fremer, concluding a fine review of the $7500 Bow Technologies ZZ-Eight integrated CD player in August, compared its notable 16-bit/44.1kHz achievement with a DVD-based disc originally mastered at 24/96kHz and replayed on an inexpensive DVD player. He found the Bow wanting in some respects. What is the world coming to?
Martin Colloms  |  Jan 05, 2007  |  First Published: Feb 05, 1997  |  0 comments
Canadian manufacturers enjoy a special relationship with the US market. Though technically their products are "imports," a high level of trade harmony, plus a common continental location, mean that Canadian designs tend to be equably priced in contrast to those exported to the States from overseas.
Martin Colloms  |  Dec 04, 2005  |  First Published: May 04, 1998  |  0 comments
Although I retain a firm hold on the established audio world, and recognize and value all that it has achieved, I feel inexorably driven to make some space in my life for single-ended amplifiers—more especially, those that eschew negative feedback (footnote 1). A classic if costly example of the art is the Cary CAD-805C, which, to my ears, has earned the right to teach audiophiles what negative feedback really sounds like, and what damage it can do to the musical message when poorly handled. This shouldn't be taken as an out-of-hand dismissal of those many great pieces of electronics and amplification that use negative feedback—it is simply an acknowledgment, or even an assertion that negative feedback generates a sound of its own.

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