search
With the Vinnie Rossi LIO: Vinnie Rossi's 25Wpc LIO integrated ($7750 as reviewed in Stereophile's September, 2015 issue) is one of the most grainless, pure-sounding amplifiers I have heard. Driving the GoldenEar Triton Fives, it created a modestly priced system capable of elite audiophile sound. Crystalline images sat in real acoustic spaces. Vocal and instrumental timbres were exact and attention grabbing. I got lost in Yehudi Menuhin's recording, as violin soloist and conductor of the Robert Masters Chamber Orchestra, of J.S. Bach's Violin Concertos 1 and 2 and the Double Concerto (with…
Sidebar 1: Specifications
Description: Two-way, reflex-loaded, floorstanding loudspeaker. Drive-units: High Velocity Folded Ribbon (HVFR) tweeter, two 6" woofers, four 8" planar passive radiators. Frequency range: 26Hz–35kHz. Sensitivity: 90dB/2.83V/m. Nominal impedance: "compatible with 8 ohms." Recommended amplification: 15–400Wpc.
Dimensions: 44.25" (1135mm) H by 6.625" (170mm) W (front) by 8.125" (210mm) W (rear) by 12.375" (320mm) D. (Height includes base, no spikes.) Weight: 40 lbs (18.2kg) net, 56 lbs (25.5kg) shipping.
Finish: Black cloth.
Serial numbers of units…
Sidebar 2: Associated Equipment
Analog Sources: Acoustic Signature Wow XL turntable, TA-1000 tonearm, Ortofon 2M Black cartridge; VPI Scout Jr. turntable & tonearm, Ortofon 2M Red cartridge; Technics SL1200 Mk.2 turntable, SME M2-9 tonearm, Soundsmith Carmen cartridge.
Digital Sources: Burson Audio Virtuoso Conductor DAC-headphone amplifier, Line Magnetic LM-502 CA DAC.
Preamplification: Blue Horizon Ideas Profono, Schiit Audio Mani, Soundsmith MMP3 phono stages.
Integrated Amplifiers: Line Magnetic LM-518 IA, Parasound Halo Integrated, Simaudio Moon Neo 340i, Vinnie…
Sidebar 3: Measurements
I used DRA Labs' MLSSA system and a calibrated DPA 4006 microphone to measure the GoldenEar Triton Five's frequency response in the farfield; and, for the nearfield responses, an Earthworks QTC-40, which has a ¼" capsule.
The Triton Five's voltage sensitivity is specified as 90dB/2.83V/m, which is high; my estimate was slightly higher, at 90.8dB(B)/2.83V/m. This is a speaker that will play loudly on just the few watts provided by the tube amplifiers Herb Reichert prefers. The GoldenEar's impedance is specified as being "compatible with 8 ohms." Fig.1 shows…
For me, one of the highlights of 2013 was being able to live with the Sonja 1.3, the flagship loudspeaker model from Colorado-based YG Acoustics. I reviewed this tall, massive, three-enclosure tour de force of a design, which costs $106,800/pair, in July 2013, and was not surprised when, for the December 2013 issue, Stereophile's writers voted it one of the magazine's two Loudspeakers of the Year. So when I was asked last spring if I wanted to review the new version of the smallest and least-expensive model in YGA's lineup, the request fell on receptive ears.
Description
The Carmel 2…
In July 2000, I reviewed the Mark Levinson company's first integrated amplifier, the No.383, and found that its sound had "clarity, transparency, liquid mids and highs, with dynamic contrasts." Also evident were the No.383's power-output limitations, the result of building large power supplies and heatsinks into a single case that had to fulfill multiple functions. Still, the No.383's price of $5900 was much less than the total cost of the equivalent in Mark Levinson separates. Later, in April 2007, I reviewed a similarly powered integrated amplifier, Bryston's B100-DA ($3195), which included…
If you've been following my loudspeaker reviews for any length of time, you'll have noted that I almost never use tube amplification. I'm always suspicious that a typical tubed design, with its relatively high source impedance, acts as a suboptimal tone control. But as none of the amplifiers I had were hitting the Carmel 2s' sweet spot, I got out of storage the sample of the PrimaLuna DiaLogue Premium HP integrated amplifier that Robert Deutsch had reviewed in December 2014. The PrimaLuna offers a fairly low output impedance, especially from its 4 ohm output transformer tap in triode mode:…
Two fully differential, class-AB, 200W amplifiers, based on modules from the No.535H five-channel amplifier, comprise the output section. These employ 12 power transistors per channel, and these modules. reportedly chosen for their small size, low power requirements, and superior reliability. They enable the No.585 to deliver 200Wpc RMS into 8 ohms, and 350Wpc into 4 ohms.
The No.585's power-amp section is protected from internal and external component failures by some of the most extensive precautions I've seen in some time. A mains relay, driven by the AC line voltage and frequency-…
Sidebar 1: Specifications
Description: Two-way, floorstanding loudspeaker with sealed enclosure. Drive-units: 1" (25mm) ForgeCore soft-dome tweeter, 7" (178mm) BilletCore aluminum-cone woofer. Crossover frequency: 1.75kHz. Frequency range: 32Hz–40kHz. Sensitivity: 87dB/2.83V/m. Nominal impedance: 4 ohms. Minimum impedance: 3.5 ohms.
Dimensions: 39" (991mm) H by 9" (230mm) W by 13" (310mm) D. Weight: 76 lbs (34kg).
Finish: Anodized aluminum.
Serial numbers of units reviewed: Not found.
Price: $24,300/pair. Approximate number of dealers: 15.
Manufacturer: YG Acoustics…
Sidebar 1: Specifications
Description: Solid-state integrated stereo amplifier. Preamplifier section: Analog line-level inputs: 1 pair balanced (XLR), 3 pairs single-ended (RCA) inputs. Analog outputs: 1 pair single-ended (RCA). Input impedance: >45k ohms (RCA, XLR). Input overload: >5.5V RMS (RCA, XLR). Voltage gain, maximum volume setting: 40.7dB. Preamplifier section (digital): Digital audio inputs: 1 balanced AES/EBU (XLR), 2 coaxial S/PDIF (RCA), 2 optical (TosLink), 1 asynchronous (USB-B). Bit depths: up to 32. PCM sampling rates: 32, 44.1, 48, 88.2, 96, 176.4, 192kHz. DSD:…