savoy014

The Calyx Femti is a dimunitive power amplifier that is a visual match for the 24/192 DAC. It's aluminium unibody chassis is finished in black with an artistic rendition of a G and F clef engraved on the top cover. The rear panel is quite cramped and includes two pairs of high quality binding posts, a set of single ended inputs and a rotary selector switch to operate the Femti as a normal stereo power amplifier, a dual output mono amplifier (for a biwired speaker), and a bridged mode mono amplifier. Very much like the Femto DAC, the power switch for the Femti is discreetly located on the side (right hand side vs. left hand side for the Femto). An IEC outlet permits use of after-market power cords. The Femti delivers 125 watts per channel into 4 ohm loads (and presumably half of that into 8 ohm loads), and 500 watts in bridged mode operation. A tricolour LED indicates normal operation, short circuit, and overload conditions. Not much information is provided about the technology used...

Introduction The Calyx Femto is the latest DAC from Digital & Analogue, the wonderful Korean company that brought us the 24/192 DAC and the Coffee DAC and headamp. I loved my 24/192 DAC, but wished it had more inputs. The Femto is obviously the answer to that and much more. Based on the ESS Sabre 9018 DAC chip, the Femto is a full sized component  with all the inputs that you could ask for. At a price multiple of the 24/192, the Femto has to deliver much more to earn its share of the Audiophile wallet. Features The Femto is a massively chunky and heavy unit. You need to personally lift it to feel its 18.5 kg weight and massive solid aluminum panels. Somehow, pictures do not convey the true size of the unit - it is much bigger than it looks. Measure your rack space carefully before purchasing ! Of particular interest are its feet, which are lined with cork, and its power button, which is discreetly located on the left hand side of the unit. I seldom switch off my digital equipme...

Good things come in small packages ! Well this does not always hold true for audio equipment, but nevertheless, the Calyx Coffee is really diminutive and cute as a button to boot. The Calyx sports the current in-thing for DAC chips, the ESS Sabre. At the Calyx’s asking price, you obviously luck out if you were hoping to get the Reference Sabre chip. Instead, you get the ES9023 which sports two D/A convertors (vs. the eight found in the Reference chip). Like the rest of the Sabre chips, the ES9023 also boasts technology such as Hyperstream Architecture and Time Domain Jitter Eliminator (the complex technical details of which overwhelm my feeble mind). Interestingly, the ES9023 chip includes a 2VRMS driver which would presumably allow a designer to skip the op-amp stage and use the ES9023 as a single chip solution. On the bright side, your hard-earned money gets you a 24/96khz capable DAC with asynchronous USB connection, and a fairly competent headphone amplifier. The most obvious targe...

I am quite familiar with the original Usher BE-718 which uses a Beryllium alloy tweeter. The BE-718 and the X-718 that preceded it stirred up quite a lot of controversy, from its close resemblance to a certain other renowned manufacturer, to the Beryllium content (or lack thereof) of its tweeter dome. Controversy notwithstanding, the BE-718 sounded great and I would have walked home with a pair if my amplifier had the power to drive it. Audio Basic had no issues driving it with their solid state amplifiers, but a quick hook up to a 30 watt per channel EL-34 push pull amplifier proved that these speakers really thrive on power. Fast forwarding to the BE-718 DMD, I believe that the speaker is internally identical to the BE-718, with identical crossover points etc. Worldwide, dealers are offering the DMD tweeters to BE-718 owners as a drop-in upgrade. Local users should be aware that the domestic version is not the same as the U.S. version which sports a tweaked crossover with upgraded ca...