{"title":"Questyle","description":"\u003cp\u003eShop Questyle Audio's Amps, DACs, DAPs and other digital audio products at Audio46. \u003cstrong\u003e\u003ca href=\"javascript:;\" onclick=\"tidioChatApi.display(true);tidioChatApi.open()\"\u003eLive chat\u003c\/a\u003e\u003c\/strong\u003e, \u003cstrong\u003e\u003ca href=\"mailto:info@audio46.mom\"\u003eemail us\u003c\/a\u003e\u003c\/strong\u003e, or call \u003cstrong\u003e\u003ca href=\"tel:1-212-354-6424\"\u003e(212) 354-6424\u003c\/a\u003e\u003c\/strong\u003e during store hours should you need help.\u003c\/p\u003e","products":[{"product_id":"questyle-cma-fifteen-dac-amp","title":"Questyle CMA Fifteen DAC\/Amp","description":"\u003ch2\u003eCMA Fifteen​ Flagship DAC \/ Headphone Amplifier (Standard 110V)\u003c\/h2\u003e\n\u003ch3\u003eConcept\u003c\/h3\u003e\n\u003cp\u003eEvolution never stops. We as humans have never stopped questing, and neither should a true flagship device.\u003c\/p\u003e\n\u003cp\u003eWith an outstanding performance level, and all the ingredients for a new groundbreaking device, we present you our new Flagship DAC\/Headphone Amp:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe CMA Fifteen\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCommemorating the 15\u003csup\u003eth\u003c\/sup\u003e anniversary of Questyle’s revolutionary Current Mode Amplification Technology.\u003c\/p\u003e\n\u003cp\u003eAt its core, Current Mode Amplification uses current, instead of voltage, to amplify audio signals. It is a state-of-the-art technology in audio amplification, leading to tremendous performance differences when compared to traditional audio amplifiers. As the “engine” of the audio system, Current Mode Amplification features a fully discrete and topological structure, and can achieve ultra-high sound performance that reproduces music so faithfully, it feels like you are in the original recording room. Using Current Mode Amplification technology, listeners can attain a much better listening experience, even when using consumer-grade headphones and speaker systems.\u003c\/p\u003e\n\u003ch2\u003eCurrent Mode Amplification Meets Current mode DAC=Current Mode²\u003c\/h2\u003e\n\u003cp\u003eTo chase extreme performance, almost all high-end DAC chips from world-renowned manufacturers feature current-type output, which in most traditional amplifiers, is then coupled with an IV converter and classical amplifier architecture. But we at Questyle wondered: if the DAC’s output is already current-type, why don’t we also amplify that signal in current-mode? And that’s exactly what we did in the CMA Fifteen: we use the ES9038PRO current-mode DAC, and couple that to four Current Mode Amplifiers, which together operate in fully balanced mode to achieve “system-level lossless” purity.\u003c\/p\u003e\n\u003ch2\u003eCMA Fifteen supports MQA full decoding\u003c\/h2\u003e\n\u003cp\u003eMQA is an award-winning British technology that delivers the sound of\u003cbr\u003ethe original master recording. The master MQA file is fully authenticated and is yet small enough to stream or download.\u003c\/p\u003e\n\u003cp\u003eThe CMA Fifteen includes MQA technology, which enables you to play back MQA audio files and streams, delivering the sound of the original master recording.\u003c\/p\u003e\n\u003ch2\u003eCMA Fifteen supports LDAC Bluetooth\u003c\/h2\u003e\n\u003cp\u003eAs a global member of Sony, we equipped the CMA Fifteen with LDAC Bluetooth. LDAC™ is a new audio technology from Sony that allows you to enjoy high quality wireless audio via Bluetooth. With 3x data transmission rates as compared to traditional Bluetooth, LDAC provides an enhanced wireless listening experience for all your music.\u003c\/p\u003e\n\u003ch2\u003eBring Apple music lossless work to your high-end audio system\u003c\/h2\u003e\n\u003cp\u003eThe CMA Fifteen supports Apple Music Lossless. In addition to the classic USB Type-B input, the CMA Fifteen now also features a USB Type-C input to solve the wire conversion loss through cables. You can finally enjoy the new experience of high resolution lossless audio online, anytime, anywhere.\u003c\/p\u003e\n\u003cp\u003e*USB Type-C input has priority. When USB Type-C and Type-B are connected at the same time, the system will process the Type-C audio source by default.\u003c\/p\u003e\n\u003ch2\u003eCMA Fifteen as a Preamp for your record player\u003c\/h2\u003e\n\u003cp\u003eCMA Fifteen now comes with analog inputs on the back of the unit. Connect CMA Fifteen to your record player as a preamp, you can enjoy the best possible sound quality. If you ever get tired of your digital music, the CMA Fifteen can now also take you back to the golden age of records.\u003c\/p\u003e\n\u003ch2\u003eContinuity and Inheritance\u003c\/h2\u003e\n\u003cp\u003eQuestyle believes that the greatest products are born from the smallest details. The CMA Fifteen continues the classic design concept and perfect manufacturing technology of its previous lines of products, while further improving on all the details. Resonance, for example, is always a detail that could easily be ignored in the design process. However, mechanical vibration does indeed affect audio signal processing and the resulting sound. To avoid this resonance, the CMA Fifteen chassis is formed from 10mm-thick aircraft-grade Aluminum 6063, with precise machining tolerances of ±0.02mm.\u003c\/p\u003e\n\u003cp\u003eIn designing the CMA Fifteen, we’ve also analyzed the layout balance before and after the machine is connected to cables, to ensure that any inherent resonance is minimized. The CMA Fifteen also has a complete output protection function: if the device fails for any reason or detects other abnormalities, it will automatically cut off the output to protect your headphones and stereo system.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e10mm aircraft-grade Aluminum 6063\u003c\/li\u003e\n\u003cli\u003eCNC foot with high density rubber\u003c\/li\u003e\n\u003cli\u003eLaser etched text for status and volume knob\u003c\/li\u003e\n\u003cli\u003eLED status indicator\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhere to use\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBest partner of headphones\u003c\/li\u003e\n\u003cli\u003ePreamp for active speaker\u003c\/li\u003e\n\u003cli\u003ePreamp for Classic HiFi system\u003c\/li\u003e\n\u003cli\u003eAS Studio monitor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eNote: \u003c\/strong\u003eAudio specs are based on the test result from Audio Precision AP2722 in Questyle lab, not the theoretical values or the theoretical values of DAC chip.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAC Input: 100-120V \/ 220-230V (switchable)\u003c\/li\u003e\n\u003cli\u003ePower Consuming: \u0026lt;30W\u003c\/li\u003e\n\u003cli\u003eSize: 330*200*55mm (Jacks are not included.)\u003c\/li\u003e\n\u003cli\u003eDigital Input:\u003c\/li\u003e\n\u003cli\u003eUSB x 2 (Including a high-priority USB Type-C interface and a USB Type-B interface.)\u003c\/li\u003e\n\u003cli\u003ePCM: 44.1khz-768kHz\/32bit\u003c\/li\u003e\n\u003cli\u003eDSD: Native DSD 512; DOP DSD 256\u003c\/li\u003e\n\u003cli\u003eMQA: Full \/ Core decoder\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUSB input supports UAC 2.0. It supports Win XP, Vista, Win7, Win8, Win10, Linux, MAC OS and other operating systems. It also can be connected to smartphones supporting OTG audio output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote: \u003c\/strong\u003eWindows system under Win10 will need to install the ASIO driver developed by Questyle. Win10 system supports DOP DSD 256 without installing the driver, and supports Native DSD 512 with the driver installed.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOptical Input x 1: PCM: 44.1kHz~192kHz\/24bit\u003c\/li\u003e\n\u003cli\u003eCoaxial Input x 1: PCM: 44.1kHz~192kHz\/24bit\u003c\/li\u003e\n\u003cli\u003eBluetooth Input x 1: SBC, AAC, LDAC (At the highest level of 96kHz\/24bit, 990kps\/909kps)\u003c\/li\u003e\n\u003cli\u003eAnalog Input: RCA x 1, 2Vrms standard level\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHeadphone Amplifier Output Interface:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e6.35mm standard headphone jack x1\u003c\/li\u003e\n\u003cli\u003e4-PIN balanced headphone jack x1\u003c\/li\u003e\n\u003cli\u003e4.4mm balanced headphone jack x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e You can set High\/Standard bias through the BIAS switch on the front panel of the headphone amplifier, and set Standard\/Low gain through the four Gain switches on the bottom of the headphone amplifier.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePre-Amp Output Interface:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eXLR x 1\u003c\/li\u003e\n\u003cli\u003eRCA x 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote: \u003c\/strong\u003eThe output level can be set by Standard\/Studio switch and volume can be controlled by ADJ\/FIX switch on the rear panel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePre-Amp Output Specs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMax Analog Output Amplitude:\u003c\/li\u003e\n\u003cli\u003eRCA: 2V (Standard), Studio mode output up to14dBu\u003c\/li\u003e\n\u003cli\u003eXLR: 4V (Standard), Studio mode output up to 20dBu\u003c\/li\u003e\n\u003cli\u003eTHD+N:\u003c\/li\u003e\n\u003cli\u003eRCA: 0.0004%\u003c\/li\u003e\n\u003cli\u003eXLR: 0.0003%\u003c\/li\u003e\n\u003cli\u003eFrequency Response: ±0.2dB (DC-22kHz)@48kHz\/24bit)\u003c\/li\u003e\n\u003cli\u003eSNR:\u003c\/li\u003e\n\u003cli\u003eRCA: \u0026gt;116dB\u003c\/li\u003e\n\u003cli\u003eXLR: \u0026gt;119dB\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHeadphone Amplifier Output Specs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMax Output Power：\u003c\/li\u003e\n\u003cli\u003e6.35mm: 188mW @ 300Ω 1.5W @ 32Ω\u003c\/li\u003e\n\u003cli\u003e4.4mm balanced \/ XLR 4-PIN balanced: 765mW @ 300Ω 2W @ 32Ω\u003c\/li\u003e\n\u003cli\u003eTHD+N：\u003c\/li\u003e\n\u003cli\u003e\u0026lt;0.0003% @300Ω\u003c\/li\u003e\n\u003cli\u003e\u0026lt;0.001%@32Ω\u003c\/li\u003e\n\u003cli\u003eFrequency Response: ±0.2dB (DC-22kHz)@44.1kHz\/24bit\u003c\/li\u003e\n\u003cli\u003eSNR：\u003c\/li\u003e\n\u003cli\u003e6.35mm: \u0026gt;117dB\u003c\/li\u003e\n\u003cli\u003e4.4mm balanced \/ XLR 4-PIN balanced: \u0026gt;120dB\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Questyle","offers":[{"title":"Default Title","offer_id":40921599410366,"sku":"CMA Fifteen","price":2495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0065\/4432\/6771\/products\/DSC07371_1-2048x1365.jpg?v=1762458595"}],"url":"https:\/\/audio46.mom\/collections\/questyle.oembed","provider":"Audio46 Headphone Store","version":"1.0","type":"link"}