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Interesting that Digital Processors and Signal Processors are separate categories, given that I encounter the term 'DSP' (Digital Signal Processor) so often. Maybe it's a hardware-software thing.
Interconnects
Audience Au24 SE: $1190/1m pair
Audience's latest interconnect uses an RCA plug of tellurium-copper alloy with a single, small contact point, meant to reduce the formation of eddy currents. Compared to Audience's Au24 e, the SE version offered superior detail, clarity, timing precision, and image focus, said BD. Au24 e owners can upgrade to SE status for $220. (Vol.36 No.12, Vol.37 No.2 WWW)
Audience Au24: $795/1m pair, unbalanced, $455/additional meter; $1350/1m pair, balanced, $845/additional meter ✩
"The Au24s had a neutral, relaxed sound, said BD, "with good extension at the frequency extremes and a wide, deep soundstage." However, they did not reach the density of tonal colors and the extreme inner detail of the expensive Nordost Valhalla. Nor could they match the Nirvana S-X Ltds.' incredibly natural soundstage reproduction. Nevertheless, "The Au24s were no slouch, just a bit off the standard set by the very best I've heard." (Vol.25 No.8 WWW)
Audience Au24e: $990/1m pair, unbalanced; $1595/1m pair, balanced ✩
"The updated version of Audience's Au24 uses the same conductors, materials, and construction as the original, but requires a much more labor-intensive process to attach the terminations to the cable. With a tonal balance that fell midway between the cool-sounding Nordost Valhalla and the warmer Nirvana SL, the Audience Au24e had a powerful and immediate sound, with huge, fast, clean dynamics and transients. Compared to the original Au24, the "e" version had greater transparency and resolution, said BD. Costs to upgrade an original Au24 to "e" status are $195 unbalanced, $225 balanced. (Vol.33 No.6 WWW)
Audio Art Classic IC-3: $130/1m pair
The IC-3available with Audio Art's own gold-plated brass RCA plugs or, for $10 more, DH Labs' Ultimate XLR plugsuses conductors of silver-coated, oxygen-free copper, a foam polyethylene dielectric, aluminum-Mylar shielding, and a PVC jacket. Compared to AudioQuest's Big Sur, the IC-3 lacked some midrange body and warmth but produced a pleasantly forward, detailed sound with an unusually wide soundstage, said SM. Sold direct with a 30-day, money-back guarantee. (Vol.37 No.2 WWW)
AudioQuest Big Sur: $109/1m
AudioQuest Golden Gate: $69/1m
AudioQuest Evergreen: $35/1m
AudioQuest Tower: $25/1m
AudioQuest's Bridges & Falls interconnects (of which these are the four least expensive models) put left and right channels in a single cable, thereby minimizing manufacturing costs while maximizing termination possibilities. Available terminations include RCA-to-RCA, mini-to-RCA, mini-to-mini, DIN-to-DIN, RCA-to-DIN, iPod-to-mini, or iPod-to-RCA, making these interconnects ideal for desktop and portable applications. The Tower and Evergreen use AQ's solid Long-Grain Copper (LGC) conductors. Golden Gate uses higher purity Perfect-Surface Copper (PSC) conductors. Big Sur uses even-higher-purity Perfect-Surface+ Copper (PSC+) conductors, and upgrades the other models' gold-plated RCA plugs to gold-plated plugs of pure purple copper. All four models are insulated with foamed polyethylene, and are attractive, well made, and very flexible. Moving up the line, SM heard improvements in image focus, tone color, drama, and overall clarity and extension. "If you're in the market for truly affordable, truly high-quality interconnects, I can think of no better place to start than AudioQuest," he concluded. SM used it between his laptop and PSB Alpha PS1 desktop speakers. Compared with the stock PS1 cable, the AQ produced a larger, more present overall sound, with deeper silences, longer decays, cleaner highs, more realistic bass, and richer tone color. "Suddenly, I had real high-fidelity sound coming from my laptop," SM enthused. (Vol.36 Nos.7, 8, Evergreen; Vol.36 No.10 WWW)
Cardas Audio Clear Rev.1: $2020/1m pair, balanced; $1840/1m pair, unbalanced
Rev.1 applies to both Cardas's Clear balanced and single-ended interconnects; JM tested the balanced version, which incorporates Cardas's heavy, gold-plated CG XLR plugs. With the Rev.1 in his system, JM gained significant measures of detail and transparency. (Vol.36 No.12 WWW)
Kimber Hero: $329/1m with WBT-0114 ✩
The "strong, silent type" when it comes to cables, says the inestimable JM. "And reasonably priced, into the bargain." (NR, but see "The Fifth Element" in Vol.33 No.6 WWW)
Kimber PBJ: $117/1m pair, as reviewed
Originally released in the late 1980s, PBJ is a minimalist design comprising three high-quality, multistrand wires in individual Teflon jackets, braided together and terminated with Kimber's Ultraplate connectors. With the PBJs in his system, SM heard greater clarity, detail, depth, and presence. Compared to AudioQuest's Sidewinder, the PBJ lacked body and warmth but was more muscular, insistent, and precise, said SM. (Vol.35 No.6 WWW)
Kimber Kable Tonik: $84/1m
Kimber's most affordable interconnect uses three stranded copper wires neatly braided in a noise-canceling pattern. Though they lacked the resolution of much more expensive interconnects, the Toniks "offered clarity without brightness, and reasonably good amounts of color, texture, and touch. For $80, that was A-okay with me," said AD. Price includes Kimber's Ultratike connectors. (Vol.34 No.11 WWW)
Kubala-Sosna Elation Interconnect: $6000/pair first meter, $1200/each additional meter
Expensive but superbly transparent interconnect that JA found worked synergistically with YG's Sonja 1.3 speakers. (NR)
Kubala-Sosna Anticipation: $400/m pair; $150/additional meter ✩
Like the K-S speaker cables (see "Loudspeaker Cables"), the K-S interconnects are based on a low characteristic impedance and solid construction. The results are uncolored sound and extremely low noise pickup. (Vol.29 No.7 WWW)
MIT CVT Terminator 2: $899/1m pair ✩
Cut from the same sonic cloth as the CVT Terminator 2 speaker cable, this interconnect had a detailed, uncolored midrange, and offered superb dynamic articulation. Compared to MIT's older, more expensive MI-350 CVTwin, the CVT Terminator 2 had greater bass extension, clarity, and high-level dynamic slam. (Vol.31 No.10 WWW)
Pure Silver Connection (PSC) PST 8: $1500/1m pair ✩
Balanced interconnects featuring solid, silver-plated 6N copper and round conductors. LG reported that they reduced system hum problems and were "highly recommended!" Price is for both balanced and unbalanced interconnects. (NR)
Signal Cable Analog Two: $49/2' pair ✩
Less flexible and a bit thicker than Signal Cable's Analog One, the Analog Two has a coaxial construction: Its 22AWG center conductor of bare copper is surrounded first by Teflon insulation, then by a shield of bare, braided copper wire, and finally by an outer jacket of Teflon. Compared to the Analog One, the Analog Two seemed slightly faster, more insistent, and more assertive and forceful, said SM, who preferred the Analog One's more laid-back sound. $6/pair each additional foot. Terminated with Neutrik Profi plug: add $40/pair. (Vol.34 No.8 WWW)
Signal Cable Analog One: $36/2' pair
The thin, flexible Analog One has 18AWG oxygen-free copper conductors and tight-fitting gold-plated RCA plugs. Compared to the RadioShack 42-487 interconnect, the Analog One offered a more organized and forceful portrayal of the music, with rounder bass, cleaner highs, and faster transients, said SM. $4/pair each additional foot. (Vol.34 No.8 WWW)
Stealth Sakra interconnect: $11,000/1m, $7000 each additional meter; balanced version fitted with XLRs: $14,000/1m pair, $10,000 each additional meter ✩
Lightweight, very flexible, and finished in an outer jacket of near-opalescent white, the Sakra interconnect is built into a hermetically sealed, helium-filled tube and terminated with proprietary solid-silver connectors. The overall sound was open and clean, with lightning-fast attacks, generous sustains, and long decays. Compared to the TARA Labs Zero, the Sakra had a bit more midrange body and texture but lacked some air and speed, felt Mikey. (Vol.34 No.6)
TARA Labs Zero Evolution: $18,000/1m
The Zero Evolution is an all-new, physically flexible, easier to manage air-dielectric interconnect than the original Zero with non-insulated square solid-core conductors. Because neither end of The Zero Evolution's shield is attached to ground, TARA employs the Floating Ground Station, a heavy, black box containing Ceralex, a combination of ceramic materials and metallic compounds that absorbs RFI and EMI. Switching from the original Zero to the new Evolution Zero, MF's system benefited yet further from an enormous addition of lushness, texture, and warmth, along with major extensions of air, detail, and transparency. Due to The Evolution Zero's ultrawide bandwidth, some outside transient noise can leak into the system when nearby appliances are activated. But"I've heard nothing like it," he declares, adding "a genuine breakthrough, though hideously expensive. The TARA Labs Evolution Zero had a fast, clean, open overall sound, with airy highs and tight bass. The Evolution upgrade adds the rich, textured midrange of the Stealth Sakra, while continuing to produce faster attacks, longer sustains, and deeper decays, said MF." (Vol.29 No.12, Zero;Vol.34 No.6 WWW, Zero Gold; Vol.36 No.11, Zero Evolution)
TARA Labs Zero GX DIN-to-RCA tonearm cable: $3800/1.0m ✩
Though it was "somewhat bereft of physicality," the Zero GX's accentuated sibilants and precise attack made it "a good choice for detail devotees," said MF. (Vol.32 No.7)
Tellurium Q Black: $500/1m pair,See JM's review in this issue.
Teresonic Clarison Gold: $3495/1m
The Clarison Gold is handmade using gold-plated crimp sleeves and gold-plated RCA plugs. Its solid-gold conductors are enclosed in a spiral-wound, galvanized ferromagnetic material. Though it lacked the detail resolution of the much more expensive TARA Labs Zero, the Clarison Gold was dead quiet and produced sweet highs, a lush midrange, and clean bass, said MF. (Vol.36 No.8)
Wireworld Platinum Eclipse 7: $3000/1m pair
Though it wasn't as transparent as the TARA Labs Zero, when used with the Constellation Centaur Mono monoblock amplifiers, the Eclipse 7 "produced a much better overall picture in terms of tonality, texture, and transients," said Mikey. (Vol.36 No.11)
Loudspeaker Cables
Audience Au24: $1925/3m pair, single wire, $450/additional meter; $3450/3m pair, biwire, $845 additional meter ✩
It was as a speaker cable that the Au24 really shone." BD actually preferred the Au24 to his reference Valhalla in terms of tonal balance, imaging, resolution of inner detail, and soundstaging. (Vol.25 No.8 WWW)
Audience Au24e: $1795.50/2m pair ✩
Original Au24 can be upgraded to "e" status for $300. $400 each additional meter. See "Interconnects." JA found the Au24e to sound too warm with the Vivid B1s. (Vol.33 No.6, Vol. 34 No.10 WWW)
Audio Art Classic SC-5: $240/10' pair
The SC-5 has silver-coated OFC conductors (14AWG), a foam polyethylene dielectric, a PVC jacket, and an internal packet of vibration-absorbing fibers. It can be terminated with gold-plated brass banana plugs or, for $10 less, DH Labs' gold-plated copper spade lugs. Compared to AudioQuest's Rocket 33, the SC-5 lacked body, weight, and warmth, but produced a detailed, dramatic overall sound, with clean transients and impressive dynamics, said SM. Sold direct with a 30-day, money-back guarantee. (Vol.37 No.2 WWW)
AudioQuest Rocket 33: $329/10ft pair
AudioQuest's 14AWG, solid-core Rocket 33 speaker cable offered an exciting leap in performance over SM's RadioShack Flat Megacable speaker wire, infusing music with more low-level resolution, transient speed, clarity, and physicality. (Vol.34 No.9, Vol.37 No.2 WWW)
Cardas Clear rev.1: $4085/2m pair, terminated in spades ✩
JM was most impressed by the Cardas Clear's low-frequency clarity and resolution, finding the Clear to give two or three more bass notes on a pipe organ, with a lower noise floor and "spooky" resolution compared with his reference MIT MH-770 CVTerminator cables. "The best-sounding cables I have heard," he concluded. JA agrees that these are fine-sounding cables. (Vol.33 No.10 WWW)
Kimber 8TC: $505/10ft pair w/o connectors ✩
(NR, but see "The Fifth Element" in Vol.33 No.6 WWW)
Kimber 8VS: $271/10ft pair, as reviewed
Kimber's 8VS is made up of eight gray and eight black conductors in individual polyethylene jackets, braided together and terminated in a choice of high-quality spade lugs or banana plugs. Compared to AudioQuest's Rocket 33, the 8VS lacked body and warmth but offered greater clarity and control, said SM. Compared to Kimber's 4PR, the 8VS offered similar tonal qualities but presented music with even greater urgency, drama, and purpose, said SM. Price is $231/10ft pair without connectors, $271/10ft pair with bananas. (Vol.35 Nos.6 & 7 WWW)
Kimber 4PR: $137/10ft pair, as reviewed
Practically unchanged since its introduction in 1979, the 4PR is Kimber's most affordable speaker cable. It employs the same braided geometry found in the company's more expensive 8VS, but instead of the 8VS's eight gray and eight black conductors, the 4PR has four pairs each of black and brown conductors in an apparently looser braid. Compared to RadioShack's inexpensive 16-gauge zip cord, the 4PR offered greater nuance, detail, clarity, and bass control, said SM. Price is $90/10ft pair without connectors. (Vol.35 No.7 WWW)
Kubala-Sosna Elation Speaker Cable: $6000/pair first meter, $1200/each additional meter
A JA favorite. See "Interconnects." (NR)
Kubala-Sosna Fascination: $950/m pair; $300/additional meter ✩
Kubala-Sosna claims that their OptimiZ technology "results in a lower characteristic impedance and a higher ratio of capacitance to inductance than any other cable." Each cable consists of a hefty pair of conductors twisted around each other, sheathed with a knitted cover, and solidly terminated in thick spade lugs. The current versions have sleek, tight jackets that make them easy to snake and arrange. With the K-S cables in his system, KR noted a decrease in overall residual hiss and softer but more precise highs. "I can't say that the change is substantial, but it is definable." Further auditioning with his multi-channel system completely wired with K-S cables led him to describe these cables as among the quietest and most transparent cables he has encountered: "Overall, they seem to get out of the way of everything else and let the system do its thing." (Vol.28 No.3, Vol.29 No.7 WWW)
MIT CVT Terminator 2: $1999/8ft pair ✩
Compared with earlier MIT cable designs, the CVT Terminator 2 has additional "pole networks" for wider bandwidth, and adds the CVT Coupler input module to minimize energy reflection. It offered "clear, crisp, clean highs" and outstanding dynamic articulation, but had "a touch of warmth" in the low end, said BJR. Biwire version costs $1299/8ft pair. (Vol.31 No.10)
Naim NACA5: $50/m $$$ ✩
Inexpensive spaced-twin cable that ST found to work well with the Spendor S100 loudspeaker. Unchanged in Naim's product line since 1986, the NACA5 is made of two chunky runs of stranded heavy-gauge wire twisted into a very tight bundle and molded into a thick sheath of Teflon. "Stiffer than Swedish roadkill," said AD. Compared to RadioShack's inexpensive SW-1650 speaker wire, however, the unwieldy NACA5 was better at communicating pitch relationships and had "a more realistic sense of flow." Worth investigating as a good-value cable, thinks JA. (Vol.32 No.8 WWW)
Nirvana Audio S-X Ltd.: $2780/2.5m pair ✩
A dynamite speaker cable," the S-X Ltd. was tonally neutral and produced well-defined images, powerful and fast transients, and incredible transparency. The only nit BD could pick was a slight compression of front-to-back soundstaging depth. "A big jump in performance from the company's SL." Add $50/pair for biwire configuration. (Vol.28 No.10 WWW)
RadioShack 14-gauge flat cable Catalog #278-1273: $29.49/50'
RadioShack's simple, inexpensive 14AWG braided speaker wire worked in SM's system, but lacked the clarity, physicality, speed, delicacy, and grace of the much more expensive AudioQuest Rocket 33. (Vol.34 No.9 WWW)
RadioShack Catalog #278-1267 16-Gauge Clear 2-Conductor Speaker Wire: $19.49/50' ✩
Though "easier to install and to live with" than Naim's unwieldy NACA5, RadioShack's 16-gauge speaker wire tended to smear bottom-octave pitch relationships, resulting in a less natural overall sound. Nevertheless, "the RadioShack cable played music well enough," said AD. "Crazy-high value that makes an 89-cent can of Bon Ami seem extravagant," he sums up. (Vol.32 No.8 WWW)
Stealth Dream V10: $12,400/2m pair, $6000 each additional meter ✩
The hermetically sealed, helium-filled Dream V10 is a thick yet flexible cable made of three flat solid-silver wires and a conductive carbon-fiber core. Compared to the TARA Labs Omega Onyx, the Stealth cable had a richer, warmer sound, with a softer attack for a slower overall musical flow. Partnered with the Stealth Sakra interconnects, the Dream V10 cable produced a more textured midrange but lacked the TARA's upper-octave air, said MF. Bi-wiring adds $1300 regardless of cables' length. (Vol.34 No.6)
TARA Labs Omega Evolution: $32,000/8'
The new physically flexible TARA Labs Omega Evolution, incorporating almost twice as many rectangular, solid-core "8 Nines" oxygen-free copper elements (280 versus the Gold's 156), adds the speed, transparency, dimensionality and, especially, textural suppleness that the previous Gold cable lacked, thus losing the Gold's "somewhat laid-back overall sound," with no sonic penalty paid for the major improvements, said Mikey. (Vol.36 No.11)
TARA Labs Omega Gold: $24,000/8ft
Compared to the Wireworld Platinum Eclipse 7, the TARA Labs Omega Gold has a somewhat laid-back overall sounded that lacked ultimate transparency, three-dimensionality, and transient speed, said Mikey. (Vol.36 No.11)
Wireworld Platinum Eclipse 7: $24,400/3m pair
Compared to the new TARA Labs Omega Evolution, the Platinum Eclipse 7 is equally transparent, resolving, and dimensional, but less texturally supple and extended on top, with a less richly drawn midrange, said MF. (Vol.36 No.11)
Digital Data Interconnects
AudioQuest Forest iPodUSB cable: $39/1.5m
If you use your iPod or iPhone plugged into your system with the ubiquitous white USB cable, pick up this inexpensive replacement. Bits may be bits, but you'll be gob-smacked by the improvement in sound quality sez JA. (NR)
Canare DigiFlex Gold model RCAPOO3F: approx. $19.37/3ft $$$ ✩
Before you try any of the expensive coaxial links, CG advises trying this inexpensive, true 75 ohm cable with Canare crimp RCA connectors. He rates it as his first choice in a digital cable at any price, even preferring it to the Kimber AGDL. JA uses the 110-ohm version in various lengths for CD mastering. (Vol.16 No.7)
DH Labs Silver Sonic D-110 AES/EBU: $99/1m
(NR, but see EL's review of the Bel Canto DAC3.5VB in Vol.34 No.6 WWW)
Kimber Orchid: $757.50/1m ✩
Expensive, but the best AES/EBU link JA has used. J-10 loved the Orchid's midrange liquidity and detail, but preferred Illumination's S/PDIF cable overall. SD (almost) doesn't equivocate: "Probably the best out there for now....A stunner!" RH and RD are also fans. New lower price usefully brings this cable in reach of more music lovers. (Vol.19 No.5)
Kubala-Sosna Expression: $775/m, $210/additional meter ✩
"A KR favorite. See "Loudspeaker Cables." (Vol.29 No.7 WWW)
Transparent Audio Performance USB: $95/1m
The Performance USB uses heavy-gauge conductors, robust connectors, and high-quality dielectrics and shielding, and can be used in runs of up to 30'. In addition to being significantly more durable than Art's reference Belkin cable, the Performance USB was quieter and produced blacker silences. Price increases by $30 for each additional meter. (Vol.33 No.1 WWW)
Interesting that Digital Processors and Signal Processors are separate categories, given that I encounter the term 'DSP' (Digital Signal Processor) so often. Maybe it's a hardware-software thing.
The digital processors are DACs or things to route digital sound somewhere. There is some overlap if there's a CD player with inputs to its DAC, and some overlap with preamp/DACs, some of which of those might have some additional, secondary digital EQ functions.
The signal processors are mostly about varieties of digital EQ, with again a few hybrid products having some secondary functions.
The separation seems clear enough to me. It is the whole universe of modern audio which seems complex, i.e., the products themselves.
Interesting that Digital Processors and Signal Processors are separate categories, given that I encounter the term 'DSP' (Digital Signal Processor) so often.
The Digital Processors category is almost exclusively digital/analog converters. The Signal Processors category is reserved for things that do something to the signal and includes analog-domain processors, such as the BSG Q0L.
John Atkinson
Editor, Stereophile
I'm going to profess a bit of ignorance here, so .... one of the places where DSP or some variant shows up in my world is related to music players such as built into the Pono device, or in computer software such as Foobar2000 etc. The great thing about EQ included in these players (or as plug-in software) is that the digital data gets EQ'd before it hits the DAC, so that whatever DAC or amp is used, the EQ remains constant in playback. Ignoring any negative impact on the EQ due to which peripherals are used, I've always assumed that EQ pre-applied to the digital data as described will reduce the resolution of the playback. If that's true, are there common analog EQ solutions that would provide better sound?
Does this mean there are no plans for an app being released like there were in previous years?
Does this mean there are no plans for an app being released like there were in previous years?
Unfortunately, that's correct. No plans. However, this website reprint replaces the standalone free app.
John Atkinson
Editor, Stereophile
From your comments prefacing the Recommended Loudspeakers 2015, I understand that category A (Full Range) has LF extension down to 20Hz. What about B (Full Range) and C (Full Range)? Do they also need to have LF extension down to 20Hz? If not, what is the LF extension for inclusion? For the restricted LF I assume that LF extension is to 40Hz for all categories. Clarification will be helpful and appreciated.
Thanks
Dushyant
Despite there being 25 Class A preamps, there are only 2 Class B preamplifiers (both from the same company) and NO class C Preamps? There are 18 Class A Power Amps and Zero Class C or D Power Amps? I thought, "Perhaps there are just no products that fit those categories any more. No more Adcom's. No more B&K's." But then I looked around and found that there ARE musically satisfying budget electronics.
So I am left to wonder...do they no longer submit their products for review or is Stereophile no longer interested in reviewing them?
I began reading Stereophile in my 20's when there was no way I could even consider a $10,000 amplifier. I aspired to a system like that, but also loved reading about gear that I could stretch to afford. I loved building a musically satisfying SYSTEM for well under $10,000. Had I only been able to read about the gear that was so far out of reach, I would likely have dropped the hobby altogether. Without the bridge, I would never have been able to get across to the ultimate destination. That bridge is being taken away from the next generation of Audiophiles.
I think that's a real shame.
Kal, Please let me know. Thanks, Chris