Martin Colloms

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Martin Colloms Wes Phillips Posted: Oct 28, 2007 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 Posted: Oct 28, 2007 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 Posted: Sep 09, 2007 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 Posted: Jun 03, 2007 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 Posted: Jun 03, 2007 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 Posted: Jan 05, 2007 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 Posted: Dec 04, 2005 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.
Martin Colloms Posted: Oct 09, 2005 Published: Mar 09, 1996 0 comments
English loudspeaker manufacturer Monitor Audio has mined a rich vein with their exclusive 6½" metal-cone driver, which covers a range from the bass to the midrange. MA designs using this drive-unit have fared well in these pages, ranging from the Monitor Audio Studio 6 minimonitor (reviewed by JA in February '94, Vol.17 No.2) to the floorstanding Studio 20 (reviewed by RH in December '91, Vol.14 No.12, and by ST in April '92, Vol.15 No.4).
Martin Colloms Posted: Mar 05, 2005 Published: Aug 05, 1999 0 comments
Many tube aficionados hold that amplifiers built with the venerable 300B tube hold the aces when it comes to sonic purity and beauty of harmonic line. Cary Audio Design's Dennis Had succeeded in producing what many believe is the definitive moderately sized single-ended triode (SET) amplifier: the CAD 300SE. This monoblock, powered by classic 300B Western Electric or derivative tubes, could provide 8–10Wpc, requiring the adoption of relatively moderate volume settings and/or sensitive, easy-to-drive loudspeakers. Cary also produced a lower-priced "integrated" stereo chassis, the CAD 300SEI.
Martin Colloms Posted: Mar 07, 2004 Published: Aug 01, 1998 0 comments
The search for signal transparency has led to much experiment and debate concerning losses in fidelity that can be traced to the preamplifier or—as it's more often and awkwardly called these days when the phono stage is omitted—the "line controller."

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