Signal Processors:
Accuphase DG-68 Digital Voicing Equalizer: $18,975
See Digital Processors. AudioPraise VanityPRO HDMI audio extractor: $1699
The VanityPRO extracts a digital audio signal from the HDMI stream and offers several options for processing and outputting the extracted audio for playback on a high-quality audio system. KR appreciated the opportunity to apply DSP, channel-level adjustments, active crossovers, and room correction while playing discs, without redundant D/A–A/D conversion. "It's a pleasure to run DiracLive—to balance channels and compensate for room acoustics—not just with files but also while playing discs," he wrote. KR's review sample was fitted with four AES3 (XLR) stereo outputs supporting up to eight channels of audio. The multichannel version is also available with four electrical S/PDIF outputs with either RCA or BNC connectors. The stereo version, which costs the same, comes with AES3, S/PDIF over RCA, and TosLink—one of each. (Vol.45 No.5 WWW) Chord Hugo M Scaler: $4650
The Chord Hugo M Scaler is a digital processor but not a digital-to-analog processor, its purpose being the upsampling—referred to in the UK as upscaling—of incoming data. When connected to a Chord DAC via BNC connectors, the M Scaler can upsample up to 705.6kHz or 768kHz, but with non-Chord DACs the upper limits become 176.4kHz and 192kHz. (In all cases, incoming DSD data is converted to PCM, with a 6dB reduction in level.) JA used the M Scaler with Chord's DAVE D/A processor, and with his own PS Audio and Mark Levinson DACs. In all cases, but especially with the DAVE, upsampling via the M Scaler offered such improvements as "more image depth, an increased sense of drive, and even more clarity." That said, owing to the fact that the M Scaler is "relatively expensive," JA recommends auditioning it with your DAC of choice "before getting out the credit card." (Vol.43 No.3 WWW) FM Tuners: A: DaySequerra FM Reference 25th Anniversary Modification: $3800 (+ cost of tuner) ★
David Day's Signature Mod effectively addresses this ultimate FM tuner's cathode-ray tube's tendency to burn out. Switching circuitry has been added to allow the CRT to turn off when not needed. The Signature Mod also replaces the tuner's incandescent bulb with longer-lasting LEDs, and uses hand-matched, low-group-delay filters for lower distortion and better channel separation. LG noted punchy, quick bass response, a deeper soundstage, and a more transparent midrange. "The new CRT's greater range of brightness and longer life expectancy makes the Signature Modification essential for owners of the DaySequerra FM tuner." The FMR25 upgrade replaces older models' cathode-ray tube display circuitry with a much brighter and more reliable thin-film-transistor liquid-crystal display, and adds a post-FM demodulation filter to remove noise at 99kHz and above. "A run-don't-walk upgrade for owners of FM References," decided LG. Price is for upgrade only; does not include cost of tuner. (Vol.12 No.6, Vol.14 No.12, Vol.21 No.6, FM Reference; Vol.29 No.9, Signature Modification; Vol.36 No.11 25th Anniversary Edition WWW)
D:
Tivoli Audio Model One BT: $179.99 ★
"The Tivoli Model One is a radio stripped to its essentials: no stereo, no station memories, no remote control, no tone controls," said ST. This design from the late Henry Kloss didn't like being played very loud, ST discovered, but was "plenty loud for a typical office, and, ultimately, loud enough for me." He heard "a richness, a warmth, a generosity of tone, and a clarity that made for enjoyable listening. I was never fatigued." "A bit boomy," says JA, "but pleasantly so." AD connected the Model One's record-out jack to his preamp inputs, then muted its speaker. Matching the Tivoli with a RadioShack 15-2163 FM antenna, he found that "the combination has been nothing short of wonderful in my system: a flexible, great-sounding monophonic source for a combined price of only $124." (Vol.24 No.3, Vol.27 No.7 WWW)
See Digital Processors. AudioPraise VanityPRO HDMI audio extractor: $1699
The VanityPRO extracts a digital audio signal from the HDMI stream and offers several options for processing and outputting the extracted audio for playback on a high-quality audio system. KR appreciated the opportunity to apply DSP, channel-level adjustments, active crossovers, and room correction while playing discs, without redundant D/A–A/D conversion. "It's a pleasure to run DiracLive—to balance channels and compensate for room acoustics—not just with files but also while playing discs," he wrote. KR's review sample was fitted with four AES3 (XLR) stereo outputs supporting up to eight channels of audio. The multichannel version is also available with four electrical S/PDIF outputs with either RCA or BNC connectors. The stereo version, which costs the same, comes with AES3, S/PDIF over RCA, and TosLink—one of each. (Vol.45 No.5 WWW) Chord Hugo M Scaler: $4650
The Chord Hugo M Scaler is a digital processor but not a digital-to-analog processor, its purpose being the upsampling—referred to in the UK as upscaling—of incoming data. When connected to a Chord DAC via BNC connectors, the M Scaler can upsample up to 705.6kHz or 768kHz, but with non-Chord DACs the upper limits become 176.4kHz and 192kHz. (In all cases, incoming DSD data is converted to PCM, with a 6dB reduction in level.) JA used the M Scaler with Chord's DAVE D/A processor, and with his own PS Audio and Mark Levinson DACs. In all cases, but especially with the DAVE, upsampling via the M Scaler offered such improvements as "more image depth, an increased sense of drive, and even more clarity." That said, owing to the fact that the M Scaler is "relatively expensive," JA recommends auditioning it with your DAC of choice "before getting out the credit card." (Vol.43 No.3 WWW) FM Tuners: A: DaySequerra FM Reference 25th Anniversary Modification: $3800 (+ cost of tuner) ★
David Day's Signature Mod effectively addresses this ultimate FM tuner's cathode-ray tube's tendency to burn out. Switching circuitry has been added to allow the CRT to turn off when not needed. The Signature Mod also replaces the tuner's incandescent bulb with longer-lasting LEDs, and uses hand-matched, low-group-delay filters for lower distortion and better channel separation. LG noted punchy, quick bass response, a deeper soundstage, and a more transparent midrange. "The new CRT's greater range of brightness and longer life expectancy makes the Signature Modification essential for owners of the DaySequerra FM tuner." The FMR25 upgrade replaces older models' cathode-ray tube display circuitry with a much brighter and more reliable thin-film-transistor liquid-crystal display, and adds a post-FM demodulation filter to remove noise at 99kHz and above. "A run-don't-walk upgrade for owners of FM References," decided LG. Price is for upgrade only; does not include cost of tuner. (Vol.12 No.6, Vol.14 No.12, Vol.21 No.6, FM Reference; Vol.29 No.9, Signature Modification; Vol.36 No.11 25th Anniversary Edition WWW)
"The Tivoli Model One is a radio stripped to its essentials: no stereo, no station memories, no remote control, no tone controls," said ST. This design from the late Henry Kloss didn't like being played very loud, ST discovered, but was "plenty loud for a typical office, and, ultimately, loud enough for me." He heard "a richness, a warmth, a generosity of tone, and a clarity that made for enjoyable listening. I was never fatigued." "A bit boomy," says JA, "but pleasantly so." AD connected the Model One's record-out jack to his preamp inputs, then muted its speaker. Matching the Tivoli with a RadioShack 15-2163 FM antenna, he found that "the combination has been nothing short of wonderful in my system: a flexible, great-sounding monophonic source for a combined price of only $124." (Vol.24 No.3, Vol.27 No.7 WWW)
