These small pads are made of a slightly abrasive textile that has been impregnated with Caig's DeoxIT Gold contact cleaner. "Highly recommended."AD adds that this CD should be used "with caution, and with the understanding that, as with trying to measure a transformer with a DVM and unintentionally magnetizing the core, negative results may ensue and may take a few days to fade away." ST points out that "weird shit goes on in hi-fi.
The disc produced a less electronic sound in JM's system, while lowering the noise floor and improving microdynamics. (Vol.20 No.9)Īyre Acoustics Irrational But Efficacious System Enhancement CD: $19.99Īyre's test CD includes five tracks of various white, pink, and brown noise, as well as two glide tones that sweep from 5Hz to 20kHz. (Vol.21 No.12)Ī great idea improvedsimilar to the original Postman, but with a metal sleeve reinforcing the sockets. "Simply plug it in and turn up the volumeits small built-in loudspeaker will reveal where your problem outlets are." Then you can turn to AudioPrism's QuietLine Parallel AC line filter for a cure. (Vol.31 No.9 WWW)ĪudioPrism Noise Sniffer RFI/EMI detector: $250 ✩Īn "electronic detective in the campaign to eliminate noise," said Chief Barry Willis. Current version redesigned to coexist better with other WiFi networks. Actual model reviewed was the AW1, which could only transmit to one receiver the otherwise identical W3 can transmit to up to three receivers. Connected between the L/R inputs of Kal's Bryston 9B-SST power amp and the L/R outputs of his Anthem Statement D2 processor, the AW1 lacked high-frequency sparkle and midrange detail while sounding "surprisingly okay." The W3's sonic compromises were much less noticeable when it was used for the surround and/or bass channels. The modules reliably linked up with each other and were free from signal interruptions, audible network problems, and extraneous noise. Audio input to the transmitter and audio output from the receiver are via stereo mini-jacks. Consider this a rave." (Vol.37 No.12)Īudioengine's W3 comprises two tiny modules, a transmitter and a receiver, each about half the size of a credit card and 1/4" thick, with a pigtail USB connector.
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I have not yet heard a Bluetooth receiver that tops the B1. Better still, as ST told it, the B1 offers considerably better-than-average sound, with its "natural harmonics, an extended top end, and crisp, clean transients. But the slightly-larger-than-average B1 adds an optical S/PDIF output, and boasts an effective range of up to 100'. Like other low-cost Bluetooth receivers, the aptX-equipped Audioengine B1 is powered by a wall wart, and comes with an interconnect cable to take the line-level output from its RCA-jack outputs to the user's preamp or integrated amp.
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They're made of a proprietary polymer material that converts kinetic energy to heat, and their improvements are not subtle, exclaims BJR: tighter, cleaner, deeper, more dynamic bass more coherent transient attacks crisper, more extended highs plus "improvements in the reproduction of subtle gradations of low-level dynamics." Give 'em a whirlthe cost is minimal. (Vol.35 No.11 WWW)Īudio Research Tube Damping Rings: $4 each ✩ĭamping rings for all AR products are now available to the public at large. Additional WA-5030-r receivers: $199 each. The WA-5030's success varied with the sensitivity of the speakers used, but produced a clean, balanced sound with decent bass extension when driving KR's small Paradigm Studio/20 surround speakers. The only control on the transmitter permits the selection of one of three zones, allowing multiple WA-5030-r receivers to send signals to speaker pairs in different rooms. The WA-5030 wireless audio system comprises the WA-50-t, a transmitter module with USB and two-channel analog inputs the WA-5030-r, a 30Wpc receiver with two-channel speaker terminals a remote control and miscellaneous connectors and power supplies. He warns: "Never use any kind of silver paste on audio connections such as RCA plugs or amplifier speaker terminals." (Vol.36 No.10 WWW) JM uses a light smear on the mating surfaces of wall-wiring connections to prevent oxidation. AI Technology's ELG-8501 is thermal grease made of more than 80% silver.
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