{"product_id":"mutec-ref10nano-b","title":"MUTEC REF10 NANO Master Clock","description":"\n\n\u003cp\u003eThe REF10 NANO is the focused version of an audiophile 10 MHz reference master clock in the superior quality you should expect from clocking specialist MUTEC. It is based on the already well-established REF10, but transfers its technology, praised by many customers and reviewers, into a new, significantly lower price range.\u003c\/p\u003e\n\u003cp\u003eWith the REF10 NANO, dedicated music lovers are for the first time able to significantly improve the sound performance of their home digital audio system for a moderate investment. Likewise, thanks to this MUTEC reference master clock, aspiring studio owners can guarantee their customers maximum sound quality when mastering and recording their music productions. No matter which kind of playback setup the REF10 NANO is used in, a noticeable increase in transparency, spatiality and dynamics will be clearly audible in general.\u003c\/p\u003e\n\u003cp\u003eThe REF10 NANO can be directly connected to up to four 10 MHz-compatible devices. D\/A converters, network switches, re-clockers, clock generators, CD players, servers or streamers are perfect partners. In case these components do not have a dedicated 10 MHz input, an MC3+ or MC3+ USB interface from MUTEC provides the necessary interconnection between the REF10 NANO and the audio equipment to be synchronized. On the other hand, the REF10 NANO is the perfect partner to an existing MC3+ or MC3+ USB. Together they raise the signals audiophile quality  already improved and re-clocked by the MC3+\/MC3+ USB interface  to an even higher level.\u003c\/p\u003e\n\u003cp\u003eTake the chance and discover what your digital audio system is capable of. Entering the sound-enhancing world of 10 MHz reference master clocks has never been more affordable than with the REF10 NANO from experts MUTEC!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eAudiophile 10 MHz reference master clock with extra low phase noise\u003c\/li\u003e\n\u003cli\u003eImproves and enhances compatible D\/A-converters, re-clockers, music servers, network switches, streamers, CD players\u003c\/li\u003e\n\u003cli\u003eHandcrafted extra low phase noise OCXO Made in Germany\u003c\/li\u003e\n\u003cli\u003eGenerates a very high slew-rate square wave signal for superior lock precision\u003c\/li\u003e\n\u003cli\u003eFour simultaneous usable reference clock outputs with 50 ohms (2x) and 75 ohms (2x) impedance for maximum compatibility\u003c\/li\u003e\n\u003cli\u003eGalvanic isolation of the independently switchable BNC clock outputs for optimum interference immunity\u003c\/li\u003e\n\u003cli\u003eSub-Hz optimized, lowest noise power supplies for every section of the circuitry\u003c\/li\u003e\n\u003cli\u003eIntegrated international power supply\u003c\/li\u003e\n\u003cli\u003eDC input for finetuning through an external power supply unit\u003c\/li\u003e\n\u003cli\u003eSelf-explanatory user interface\u003c\/li\u003e\n\u003cli\u003eOptional mounting kit for installation in 19 studio racks (1RU)\u003c\/li\u003e\n\u003cli\u003eDeveloped and manufactured in Germany\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eMaster Clocking in MUTEC Quality starts right here\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe REF10 NANO is the perfect device for all sound enthusiasts who want to get the advantages of an original MUTEC reference master clock at the lowest possible price  without making a significant trade off! This smallest 10 MHz reference master clock in the MUTEC range offers almost every of the important quality features of its big brother REF10.\u003c\/p\u003e\n\u003cp\u003eFor the REF10 NANO  developed by MUTEC in the expected reputable quality  the formula reads: half the size, half the price, but almost as good as the REF10! This certainly makes the REF10 NANO the best 10 MHz reference master clock currently available in its price class.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAdvantage OCXO\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eHighly important for the performance of a reference master clock is the frequency stability of the oscillator used. This parameter is dependent, among other things, on its ambient temperature, which must remain within a precisely defined range. If this very narrowly defined frame is deviated from by a variation in the ambient temperature, the frequency stability of the oscillator is affected. This has a significant impact on the precision of the digital signal processing for connected audio devices. The German-made OCXO (Oven Controlled Quartz Oscillator) used in the REF10 NANO is permanently kept at the same ideal temperature in its dedicated heated enclosure. This sophisticated method is the best way to achieve excellent results, as it provides exceptional frequency stability. Traditional temperature-compensating quartz oscillators (TCXO) constantly readjust the deviations of the changing temperature conditions on the basis of continuos measurements. But they fall far short of the quality level of an oven-based solution. Conventional low-cost crystal oscillators without any temperature control used to ensure the timely processing of the digital data flow in common DA converters, switches, streamers and re-clockers, lack even more of the frequency stability, which is extremely relevant for uncompromising high-quality audio reproduction. Therefore, the use of an excellent OCXO is largely responsible for the outstanding quality of MUTEC's REF10 NANO.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eOCXO versus Atomic Clock (Rubidium\/Cesium)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAs an alternative to an OCXO, so-called atomic clocks are also used in advanced reference clock generators, mostly based on rubidium or cesium references. We do not think this is the way to go. Our researches have shown that the high clock stability of atomic clocks occurs in a time range that is inappropriate, therefore of no relevance for digital audio applications. Their long-term stability refers to the amount by which the absolute clock frequency drifts over a longer period of time, from a few days to several years. Although long-term stability is important for telecommunication applications, for example, it has no impact to reproduction of digital audio material. The crucial factor for sound quality is the accuracy of the time interval from one sample to the next sample, i.e. a very short time range, usually measured in time intervals between 0.01 sec. and a few seconds. Alterations of this so-called short-term stability are measured as jitter or phase noise. At this crucial point for audiophile music reproduction the OCXO-based REF10 NANO delivers the significant advantage over rubidium or cesium-based clock references.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eThe Power Issue\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe power supply plays a significant role for the overall quality of signal processing. Due to that, the MUTEC developers have put increased effort into this area as well. Here, the oven-controlled oscillator in particular gets its ultra-low noise supply voltage completely isolated from the rest of the circuitry. In addition, sub-Hz optimized, lowest noise voltage sources supply each single part of the circuitry individually in order to avoid any mutual interferences. The extremely low noise clock distribution and amplification circuitries ensure that the OCXO's reference clock signal reaches the four outputs of the REF10 NANO with virtually no loss. For performance tuning the internal power supply can be bypassed with an externally applied 16 volt power supply. The dedicated DC input on the back of the compact 10 MHz reference master clock provides a convenient and safe way to optimize in this regard.\u003c\/p\u003e\n\u003cp\u003eBased on our knowledge of the importance of a clock signals rise time (steepness of the edge) for the audio performance, we chose a very high slew-rate, lowest ripple square wave signal for the REF10 NANO. In contrast to the low slew-rate sine wave signals used by competing brands, this leads to superior lock precision and therefor minimized jitter at the receiving end. As a result, all devices connected to the REF10 NANO will sound even better.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTargeted Design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eIn order to remove jitter and phase noise from clock signals to the maximum extent possible, further manifold steps were taken. The REF10 NANO has an enclosure made of steel to protect the electronics from high frequency interferences. Compared to commonly used aluminum cases, the insulation against external interferences is considerably better. To avoid hum caused by ground loops, all output stages of the REF10 NANO are galvanically isolated. Each of the four clock outputs can be switched on and off individually so that only the required outputs are active. This helps to minimize mutual interferences in the high frequency range as best as possible. There are two pairs of outputs, each with a different termination of 50 ohms and 75 ohms. This ensures successful interaction of the REF10 NANO with a wide range of devices of other manufacturers. Operation couldn't be simpler: all you have to do is select the desired output and the NANO immediately works it`s magic.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eClear Sound Improvement\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUsing a reference master clock such as the affordable REF10 NANO can significantly improve the sound of a digital audio setup. This applies to the audiophile listener at home as well as to the mastering\/recording engineer in a professional A\/V studio environment. In every use case, there is a clear increase in audio quality. Including the REF10 NANO in your system results in higher transparency, more clearly defined bass, darker background, better instrument staging and extended imaging. The MUTEC REF10 NANO certainly takes the audio quality of compatible D\/A converters, network switches, servers, streamers, CD players, clock generators and re-clockers to a new level. It is likewise the perfect upgrade for owners of an MC3+\/MC3+ USB interface. In every context, the REF10 NANO 10 MHz reference master clock makes a significant contribution to fulfilling the central MUTEC promise: Perfecting Digital Audio.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eInterfaces\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2 x 10 MHz reference clock BNC output, 50  terminated, unbalanced\u003c\/li\u003e\n\u003cli\u003e2 x 10 MHz reference clock BNC output, 75  terminated, unbalanced\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSignal Format of all Clock Outputs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eSquare wave, 10.000 MHz, 2 Vpp, 50:50 duty cycle\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eClock Generation\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eType: 10.000 MHz low noise oven-controlled crystal oscillator\u003c\/li\u003e\n\u003cli\u003eFQ stability when shipped: \u0026lt; +\/-0.01 ppm\u003c\/li\u003e\n\u003cli\u003eFQ stability vs. temperature range: \u0026lt; +\/-0.03 ppm within -20 °C to +70 °C (-4 °F to +158 °F)\u003c\/li\u003e\n\u003cli\u003eShort term stability (Allan deviation) at Tau = 1 s: 2 x 10-12 (typically)\u003c\/li\u003e\n\u003cli\u003eAging after 10 days operation: \u003cbr\u003e\u0026lt; +\/-0.0002 ppm (per day), \u003cbr\u003e\u0026lt; +\/-0.03 ppm (1st year), \u003cbr\u003e\u0026lt; +\/-0.2 ppm (10 years)\u003c\/li\u003e\n\u003cli\u003eWarm-up time at +25 °C (+77 °F) : \u0026lt;5 min\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePhase Noise, Measured at REF10 NANOs Outputs\u003c\/h3\u003e\n\u003cp\u003e\u003ca\u003e\u003cimg\u003e\u003c\/a\u003e\u003cbr\u003e\u003csmall\u003ePhase noise, measured at REF10 NANOs outputs\u003c\/small\u003e\u003c\/p\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhase noise\u003c\/td\u003e\n\u003ctd\u003edBc\/Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 Hz:\u003c\/td\u003e\n\u003ctd\u003e -112\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 Hz:\u003c\/td\u003e\n\u003ctd\u003e -142\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e100 Hz:\u003c\/td\u003e\n\u003ctd\u003e -158\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1000 Hz:\u003c\/td\u003e\n\u003ctd\u003e -164\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise floor:\u003c\/td\u003e\n\u003ctd\u003e -167\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eJitter Performance, Measured at REF10s Outputs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e1-100 Hz:  30 fs\u003c\/p\u003e\n\u003cp\u003e\u003ca\u003e\u003cimg\u003e\u003c\/a\u003e\u003cbr\u003e\u003csmall\u003eJitter performance, measured at REF10 NANOs outputs\u003c\/small\u003e\u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003eDisclaimer: All measurement figures represent average values. Minor production related deviations will be expected.\u003c\/small\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eVoltage Supply\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003ePower Supply\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: internal self-switching power supply\u003c\/li\u003e\n\u003cli\u003eInput Voltage: 85-305 V, 50-60 Hz\u003c\/li\u003e\n\u003cli\u003ePower Consumption: 7 W during oscillator warm-up (\u0026lt;10 min), 4 W nominal operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDC Supply\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInput Voltage: 15 V\u003c\/li\u003e\n\u003cli\u003ePower Consumption: max. 7 W\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eMechanical Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCase size\/material\/color: 196 x 44 x 300 mm (WxHxD, without connectors and case feet), 1,5 mm steel, black powder-coated\u003c\/li\u003e\n\u003cli\u003eFront panel size\/material\/surface\/color: 198 x 44 x 6 mm (WxHxD), aluminium, anodized incl. anodic printing or silk screening, silver or black\u003c\/li\u003e\n\u003cli\u003eWeight: 2070 g without packaging\u003c\/li\u003e\n\u003c\/ul\u003e\n\n","brand":"MUTEC","offers":[{"title":"Silver","offer_id":52739906109706,"sku":"MUTEC-2365","price":1690.0,"currency_code":"GBP","in_stock":true},{"title":"Black","offer_id":52739906142474,"sku":"MUTEC-2366","price":1690.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/3283\/6618\/files\/mutec-ref10-nano-master-48825-p.jpg?v=1773933679","url":"https:\/\/audioemotion.co.uk\/products\/mutec-ref10nano-b","provider":"Audio Emotion Limited","version":"1.0","type":"link"}