June
2020

Country of Origin

Austria

Swöxx

Reviewer: Srajan Ebaen
Financial interests: click here
Sources: Retina 5K 27" iMac (4GHz quad-core with Turbo boost, 32GB RAM, 3TB FusionDrive, OSX Yosemite. iTunes 14.4), PureMusic 3.02, Audirvana 3, Qobuz Hifi, Tidal Hifi, COS Engineering D1, Denafrips Terminator, Soundaware D300Ref,  AURALiC Vega, Jay's Audio CDT 2 MkII & DAC-2 SE
Preamplifier: Vinnie Rossi L2 Signature with WE 300B/VT52 or Elrog ER300B/50; Nagra Classic, Wyred4Sound STP-SE Stage II, Vinnie Rossi LIO (AVT module); April Music Stello HP100 MkII
Power & integrated amplifiers: Pass Labs XA30.8; LinnenberG Audio Liszt monos; FirstWatt SIT1 monos, SIT-3, F5, F6, F7; Goldmund/Job 225; Aura Note Premier; Wyred4Sound mINT; Nord Acoustics NC500 monos; April Music Stello S100 MkII;  Crayon Audio CFA-1.2; SAG AIO; Bakoon AMP-13R
Loudspeakers: Audio Physic Codex; Acelec Model One; Cube Audio Nenuphar; Albedo Audio Aptica; EnigmAcoustics Mythology 1; Boenicke Audio W5se; Zu Audio Druid V & VI & Submission; German Physiks HRS-120; Eversound Essence; Fram Midi 150 & 120
Cables: Complete loom of Allnic Audio ZL3000/5000 and Zu Event; KingRex uArt, Zu and LightHarmonic LightSpeed double-header USB cables; Tombo Trøn S/PDIF; van den Hul AES/EBU; AudioQuest Diamond glass-fibre Toslink; Black Cat Cable redlevel Lupo; Ocellia OCC Silver
Power delivery: Vibex Granada/Alhambra on all source components, Vibex One 11R on amps/sub, Puritan Audio Labs PSM156 & PS106-DC
Equipment rack: Artesania Audio Exoteryc double-wide 3-tier with optional glass shelves, Exoteryc Krion and glass amp stands 
Sundry accessories: Acoustic System resonators
Room: 4 x 6m with high gabled beam ceiling opening into 4 x 8m kitchen and 5 x 8m living room, hence no wall behind the listening chairs
Review component retail: €2'400/pr oak, €2'560/pr hazelnut

"I hope you are fine and doing great in these times.

"I want to share that I'm active again with SW Speakers and now have a new look and new product, the Swöxx, an active great-sounding monitor. Please let me know if you would like to review these cool speakers."

The sender was Sinan Wasif.

In 2010 and then still working out of Sweden, he'd proposed the €60'000/pr Magic Flute model below, a sculptural 4-driver affair with stacked turbine-shaped carbon-fiber enclosures topped by a 10° tiltable 1" soft-dome tweeter atop dual 6" mids and a 9" woofer.

He also had the dual-concentric Figaro monitor which scaled down the concept to a single turbine. Both remain special-order items.

But what he had now looked rather different.

Checking out Sinan's website, I began pondering the long-term effects of being looked at by no longer stacked turbines but two stylized big eyes. They only lack lashes to start batting. But the overall rear-sloping form factor was certainly attractive and the veneering looked classy.

A tech link lists a 25mm Seas T25CF002 tweeter and matching 7" aluminium-cone Seas L19RNX1 mid/woofer. Those are expensive top-shelf units. At retail, a driver set for a Swöxx pair would collect a stiff €1'220. A DSP filter divides them at 1'800Hz. Sensitivity is a typical 87dB in a sealed cabinet. Rated bandwidth is 37-35 Hz/kHz. Physical measurements are 31x36x33cm WxHxD. Weight is a most robust 14.5kg/ea of which just 1kg goes to…

… a built-in nCore Fusion 252 plate amp to generate 250wpc/4Ω. Socketry serves up analog 44kΩ XLR i/o, analog 54kΩ RCA in, 110Ω AES/EBU and 75Ω S/PDIF i/o, Toslink in plus a USB 2.0 configurator interface for the designer. Each speaker has its own electronics and a selector sets it to left or right channel. From the Hypex website we learn that source selection is automatic by locking to the first available source. Analog and digital domains are separate so analog input signal cannot be routed to a digital output or vice versa. Standby power draw is just half a watt.

As a DSP-filtered affair, all analog signal is first digitized by an Asahi Kasei AK5554 ADC before it sees the Hypex DSP engine. The digital i/o see a digital receiver, then the same AK4454 DAC as the converted analog inputs. The sample-rate converter is a 192kHz SRC4382. Latency for analog is 350us, 1.8ms for digital. Performance specs are a -109dB S/NR and -100dB TDH for the AD/DA path, 111dB/-102.5dB for the simpler DA path. Volume control is by Hypex plastic remote in the digital domain. On which of the many connections to use, Sinan favors Toslink to the remote-controlled master speaker, then an S/PDIF link to the slave.

Today SWS no longer operate out of Sweden but Austria's famed Mozart city of Salzburg. It's where these speakers ship from web-shop direct. Standard finish options are oak and hazelnut veneer, the latter for a €160/pr surcharge. The Swöxx is available not just as a conventional stereo pair but single unit so multiples can be daisy-chained for multi-room sound distribution.

… to be continued…