About 15 years ago, there was an explosion of new cable companies, each of which appeared to be boasting that its innovative designs were right and everyone else's were wrong. Some of these cables were interesting, but many seemed to be nothing…
About 15 years ago, there was an explosion of new cable companies, each of which appeared to be boasting that its innovative designs were right and everyone else's were wrong. Some of these cables were interesting, but many seemed to be nothing…
Description: Single-ended interconnects; single- and biwire speaker cable.
Serial Numbers Of Units Reviewed: Interconnect: 22934, 4. Speaker cable: 23033. Biwire speaker cable: 22930.
Prices: Interconnect: $499/1m pair. Speaker cable: $999/8' pair. Biwire speaker cable: $1299/8' pair. Approximate number of dealers: 212.
Manufacturer: MIT Cables, 4130 Citrus Avenue, Suite 9, Rocklin, CA 95677. Tel: (916) 625-0129. Fax: (916) 625-0149. Web: www.mitcables.com.
Analog Source: Rega Planar 3 turntable, Syrinx PU-3 tonearm, Clearaudio Virtuoso Wood & Aurum Beta S cartridges.
Digital Source: Creek Destiny CD player.
Integrated Amplifier: Creek Destiny.
Loudspeakers: Nola Mini, Monitor Audio Silver RS6.
Cables: Interconnect (all MIT): Magnum M3, MI-350 CVTwin Terminator, MI-330SG, Terminator. Speaker: Acarian Systems Black Orpheus.
Accessories: Various by ASC, Bright Star, Celestion, Echo Busters, Salamander Designs, Simply Physics, Sound Anchor, VPI.—Robert J. Reina
Spendor is probably the best known of the three, and theirs is the typical story: In the 1960s, the BBC's engineering department declared that monitor-loudspeaker technology could not continue to improve without some…
But the Harbeth delivered more than…
Description: Three-way, reflex-loaded stand-mounted loudspeaker. Drive-units: 1" fabric-dome tweeter, 8" plastic-cone midrange unit, 12" polypropylene-cone woofer. Impedance: 6 ohms nominal. Sensitivity: 85dB/W/m. Frequency response: 38Hz–20kHz, ±3dB. Suggested amplification: >50W.
Dimensions: 29.5" (750mm) H by 17.25" (432mm) W by 15.75" (400mm) D. Weight: 75 lbs (34kg).
Finishes: cherry; add $1000/pair for eucalyptus.
Serial Numbers Of Units Reviewed: 0000L, 0000R.
Price: $12,995/pair. Stands: $595/pair. Approximate number of dealers: 20.
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Analog Sources: Linn LP12 (with Linn Basik power supply), Thorens TD-124 Mk.II turntables; Naim Aro, EMT 997 tonearms; Miyabi 47, EMT OFD 25 & OFD 65, Shindo SPU, Ortofon SPU Synergy A cartridges; Auditorium 23 Hommage T1 step-up transformer.
Digital Sources: Sony SCD-777ES SACD/CD player; Sony PlayStation 1 CD player.
Preamplifiers: Shindo Masseto, DNM 3D.
Power Amplifiers: Shindo Cortese, DNM PA3ΔS; Shindo Corton-Charlemagne, Quad II monoblocks.
Loudspeakers: Audio Note AN-E/SPe HE, Quad ESL.
Cables: Interconnect: Audio Note AN-vx, DNM…
My estimate of the big Harbeth's voltage sensitivity on its tweeter axis was 84.5dB(B)/2.83V/m, which is within experimental error of the specified 85dB/2.83V/m. This is lower than average, and suggests that a goodly powerful amplifier will be needed to achieve high playback levels. (I note that AD's 10W Shindo amplifier didn't cut it.) However, the M40.1's plot of impedance magnitude and phase angle (fig.1) suggests that the Harbeth is easy to drive in terms of its demand for current. The impedance drops below 6 ohms only in the middle of the midrange, and then…
Editor: Many thanks to Art Dudley for an excellent review of the Harbeth M40.1. Perhaps I could comment on the differences between the frequency-response measurements we made days ago at the BBC's anechoic chamber in London, the in-room listener-at-home curves, and those made by Stereophile.
Making high-quality loudspeaker measurements that can be confidently repeated by other researchers is not easy, and is far more difficult now that big, expensive anechoic chambers with controlled, reflection-free environments are rare—and expensive and inconvenient to…