Questyle CMA Eighteen Master DAC/Amp Crafted with Passion Since the debut of the first CMA800 in 2012, every flagship in Questyle's CMA series has shared a common soul: Current Mode Amplification Technology. The CMA Fifteen, launched in 2020, used the flagship ESS Current Mode DAC ES8038PRO for the first time, and coupled it with the Current Mode Amplifier, which established the entire current path of the device, bringing the CMA series into a new era of full-current processing and achieving the design philosophy of "lossless throughout the chain". Since the flagship DAC/amplifier CMA Fifteen was almost perfect three years ago, the question arose: how to improve it further? The answer lies in continuous refinement. Over the last three years Questyle has been on a quest to find even better designs, the good news is that the latest flagship, the CMA Eighteen Master, succeeds in this. Current Mode Amplification Global PCT Patent No.: US 9,614,483 B2 Current Mode Amplification, which refers to a Current Mode Audio Amplifier, is a patented technology from Questyle Audio. It is a state-of-the-art audio amplification technology that differs from conventional audio amplifiers. As the "engine" of the audio system, Current Mode Amplification, which has a completely discrete and topological structure, achieves ultra-high sound performance close to the recording scene that really moves the audience. Thanks to Current Mode Amplification technology, users can achieve a more realistic listening experience than with conventional devices, even with their own headphones or speakers. To dissipate the considerable heat generated when processing lossless ultra-high definition audio with the ES9039PRO, Questyle decided to switch the circuit board to Rogers ceramic. This material, originally developed for military equipment, missiles and specialised instruments, is about 20 times more expensive than conventional materials. Synchronised performance improvement The performance of the headphone amplifier and the independent preamplifier is improved simultaneously. The latest optimised current-mode amplifier, combined with a Rogers board whose dielectric constant is only 1/10 that of conventional boards, shows a 30% increase in performance compared to the previous generation in laboratory distortion tests. There is also a noticeable improvement in dynamic range and background quietness, focussing on the subjective listening experience. The headphone amplifier features a fully balanced architecture with APLS quad analogue potentiometers and a peak current output of up to 3A, allowing the CMA Eighteen Master's headphone amplifier to exploit the full potential of all high-end headphones.The CMA Eighteen Master's digital power supply and amplifier/DAC power supply are completely independent of each other, ensuring the purest signal processing. An independent NORATEL toroidal transformer and Schottky rectifier provide the purest power supply to the analogue side of the DAC. The new flagship Questyle CMA Eighteen Master The CMA Eighteen Master is an upgrade to the XMOS X316 USB platform and supports D/A conversion up to PCM768/DSD512. It also supports both USB-B and USB-C interfaces, avoiding audio quality degradation and unstable high-definition data transfers caused by the need for conversion adapters associated with the recent move to USB-C ports on PCs. Exceptional D/A converter capabilities PCM768 | 32Bit Latest XMOS USB platform XU316 The CMA Eighteen Master's Bluetooth mode has been upgraded to support both aptX HD and LDAC, ensuring optimal wireless sound quality with a stable wireless connection. Half reverence, half self-praise The CMA Eighteen Master embodies Questyle's clean design language with a sandblasted matte CNC panel complemented by laser-engraved dark characters, mechanical toggle switches and amber-coloured indicator lights, paying homage to the previous generation, the CMA Fifteen. Input/output interface specifications Digital input: USB Includes one high-priority USB Type-C interface and one USB Type-B interface PCM： 44.1kHz-768kHz/32Bit Native DSD：DSD64,DSD128,DSD256, DSD512 DoP DSD：DSD64, DSD128, DSD256 USB input supports UAC 2. 0 Supports Win XP/Vista/Win7/Win8/Win10/Win11/Linux/Android/HarmonyOS/macOS and iOS Note: For Windows systems under Win10, the ASIO driver developed by Questyle must be installed. The Win10 system supports DOP DSD 256 without installing the driver and supports Native DSD 512 with driver installed Optical input: Supports PCM: 44. 1kHz~192kHz/24Bit Coaxial input: Supports PCM: 44.1kHz~192kHz/24Bit Bluetooth input: Supports SBC, AAC, aptX, aptx-HD, LDAC (up to 96kHz/24Bit, 990kps/909kps) Analogue input RCA: Standard level 2Vrms Headphone amplifier output interface: 4.4mm balanced headphone jack 4-PIN balanced headphone jack, 6.35mm standard headphone jack Note: Use the BIAS switch on the front of the headphone amplifier to set the bias to High/Standard and the four gain switches on the bottom of the headphone amplifier to Standard/Low Preamplifier output interface: XLR x 1, RCA x 1 (Note: The output level can be adjusted with the standard/studio switch and the volume can be adjusted with the ADJ/FIX switch on the rear panel) Technical data of the headphone amplifier Maximum output power (PO)： 6.35mm: 188mW@300Ω; 1.5W@32Ω 4.4mm balanced / XLR 4-PIN balanced: 765mW@300Ω; 2W@32Ω THD+N： <0. 0003% Frequency response: ±0.2dB (DC-22kHz)@48kHz/24Bit Signal-to-noise ratio (SNR): 6.35mm: >117dB; 4.4mm balanced/ XLR 4-pin balanced: >120dB Technical data of the preamplifier Maximum analogue output level: RCA: 2 V (STANDARD), output increased to 14 dBu in studio mode XLR: 4 V (STANDARD), output increased to 20 dBu in studio modeTHD+N： <0.0003% Frequency response: ±0. 2dB(DC-22kHz)@48kHz/24Bit Signal-to-noise ratio (SNR): RCA: >116dB; XLR: >119dB

Questyle CMA FifteenDie Evolution hört nie auf. Wir Menschen haben nie aufgehört zu suchen, und das sollte auch ein echtes Flaggschiff-Gerät nicht. Mit einem herausragenden Leistungsniveau und allen Zutaten für ein neues, bahnbrechendes Gerät präsentieren wir Ihnen unser neues Flaggschiff, den DAC/Headphone Amp: Der Questyle CMA Fifteen Zur Feier des 15. Jahrestages der revolutionären Current Mode Amplification Technologie von Questyle. Im Kern verwendet die Current Mode Amplification Strom anstelle von Spannung, um Audiosignale zu verstärken. Es handelt sich um eine hochmoderne Technologie zur Audioverstärkung, die im Vergleich zu herkömmlichen Audioverstärkern enorme Leistungsunterschiede aufweist. Als "Motor" des Audiosystems verfügt die Current Mode Amplification über eine vollständig diskrete und topologische Struktur und kann eine extrem hohe Klangleistung erzielen, die die Musik so originalgetreu wiedergibt, dass man das Gefühl hat, sich im Aufnahmeraum zu befinden. Mit der Current-Mode-Verstärkungstechnologie kann der Hörer ein viel besseres Hörerlebnis erreichen.Strommodus-Verstärkung trifft auf Strommodus-DAC = Current Mode² Nach drei Jahren Vorforschung mit ESS hat Questyle den Flaggschiff-DAC ES9038PRO ausgewählt, einen Dekodier-Chip mit der höchsten Leistung aller bisher entwickelten DACs, und gemeinsam mit ESS den CMA Fifteen auf den Markt gebracht, der die Formate 32bit/768K und DSD 512 Masterband unterstützt. CMA Fifteen unterstützt die vollständige MQA-Dekodierung MQA ist eine preisgekrönte britische Technologie, die den Klang der der ursprünglichen Master-Aufnahme wiedergibt. Die MQA-Masterdatei ist vollständig authentifiziert und dennoch klein genug, um gestreamt oder heruntergeladen zu werden. Der CMA Fifteen ist mit der MQA-Technologie ausgestattet, die die Wiedergabe von MQA-Audiodateien und -Streams wiedergeben können, die den Klang der ursprünglichen Master-Aufnahme. Bringen Sie die verlustfreie Apple Music-Wiedergabe auf Ihr High-End-Audiosystem Der CMA Fifteen unterstützt Apple Music Lossless. Zusätzlich zum klassischen USB-Typ-B-Eingang verfügt der CMA Fifteen jetzt auch über einen USB-Typ-C-Eingang, um den Umwandlungsverlust durch Kabel zu lösen. Sie können endlich die neue Erfahrung von hochauflösendem, verlustfreiem Audio online genießen, jederzeit und überall. *Der USB-Typ-C-Eingang hat Vorrang. Wenn USB Typ-C und Typ-B gleichzeitig angeschlossen sind, wird das System standardmäßig die Typ-C-Audioquelle verarbeiten. Kontinuität und Vererbung Questyle glaubt, dass die besten Produkte aus den kleinsten Details entstehen. Der CMA Fifteen führt das klassische Designkonzept und die perfekte Fertigungstechnologie seiner früheren Produktlinien fort, während er alle Details weiter verbessert. Resonanz zum Beispiel ist immer ein Detail, das im Designprozess leicht übersehen werden kann. Mechanische Schwingungen beeinflussen jedoch tatsächlich die Audiosignalverarbeitung und den resultierenden Klang. Um diese Resonanzen zu vermeiden, besteht das Gehäuse des CMA Fifteen aus 10 mm dickem Flugzeugaluminium 6063 mit einer präzisen Bearbeitungstoleranz von ±0,02 mm. Bei der Entwicklung des CMA Fifteen haben wir auch die Balance des Layouts vor und nach dem Anschluss des Geräts an die Kabel analysiert, um sicherzustellen, dass jegliche Eigenresonanz minimiert wird. Der CMA Fifteen verfügt außerdem über eine vollständige Ausgangsschutzfunktion: Wenn das Gerät aus irgendeinem Grund ausfällt oder andere Anomalien feststellt, schaltet es den Ausgang automatisch ab, um Ihre Kopfhörer und Ihre Stereoanlage zu schützen.

Questyle CMA Twelve Master Kopfhörerverstärker / DAC / Vorstufe

Questyle CMA18 Portable     The flagship mobile DAC/amplifier     AK4493 DAC chip supports up to PCM768/DSD512     Integrated analogue/digital converter for digitising analogue signals Utilise all possibilities - no compromisesCompact in size, powerful in performance. The flagship mobile DAC/amplifier, the Questyle CMA18 Portable, features a distinctive, flawless and original design housed in a portable enclosure. Compromising on performance no longer means compromising on portability.The main goal in developing the QuestyleCMA18 Portable was to create a portable hi-fi system for laptops and smartphones that rivals the best desktop configurations. Design and craftsmanshipThe CMA18 Portable has a distinctive look that emphasises its extreme performance. The sandblasted aircraft aluminium surfaces are finished with high-gloss silver buttons and side panels, while the front and back are made of special glass with a gradient pattern and a coating to suppress RF signals. The internal amber-coloured LEDs emphasise the unrivalled design when in operation and blend seamlessly into the look of the glass cover.PowerThe Questyle CMA18 Portable's powerful drive performance is provided by four sets of patented PCT-class current-mode SiP chips, each with a peak power of up to 5W and a peak current of 2A. The high-energy current-mode amplifier technology combined with gain customisation ensures powerful and adaptable performance. The latest XMOS XU316 platform in combination with the AK4493 DAC chip supports HD D/A conversion up to PCM768/DSD512 Four sets of in-house developed PCT patented current-mode SiP chips, CC630/CA630, ensure the best thrust and lowest power consumption in the industry Coupled with 4.4 mm headphone output and high/low gain mode switching, delivering the full potential of all IEMs and premium over-ear headphones Optional 3.5mm/4.4mm headphone jacks and gain switching ensure precise matching to any headphone PCM768 / 32Bit - Exceptional D/A converter capabilities AK4493 AKM DAC chip / XU316 N / Latest XMOS USB platform / CC630/CA630 Bluetooth mode supports both aptX HD and LDAC, providing optimal wireless sound quality and a stable wireless connectionClean from the start - lithium battery power management systemThe CMA18 Portable's 4300mAh lithium battery power management system ensures the purest sound quality audio and isolates peak performance from the power dependency of smartphones and PCs.The CMA18 Portable is MFi certified, entering the mobile, lossless era with Apple.CMA18 Portable is compatible with USB-A, USB-C and Lightning interfaces.Analogue inputs with recording function - The Questyle CMA18 Portable has two stereo line-in inputs3.5 mm (AUX IN) and 4.4 mm (BAL IN). They can be connected to any audio device that has analogue line-out outputs, such as turntable systems, preamps, mixers and more.Once connected, the Questyle CMA18 Portable can be used as an external, lossless and powerful analogue-to-digital converter (ADC).How to use the recording function: When the Questyle CMA18 Portable is set to AUX IN or BAL IN mode and connected via USB to a host device (any phone, tablet, computer, etc. that supports USB sound card recording), both the USB connection and REC indicator lights will illuminate, signalling that the recording function is enabled.There are no special requirements for the recording software as long as it supports recording via external USB sound.SpecificationsUSB playbackMaximum support PCM768kHz/32bit, DSD Native: DSD64, DSD128, DSD256, DSD512, DSD Dop: DSD64, DSD128, DSD256Supports UAC 2.0Supports: Win XP / Vista / Win7 / Win8 / Win10 / Win11 / Linux / Android / HarmonyOS / macOS and iOSUSB recordingFixed 48kHz/32bit stereo recordingSupports: Win XP / Vista / Win7 / Win8 / Win10 / Win11 / Linux / Android / HarmonyOS / macOS and iOSOPTICAL: Supports 44.1kHz, 48kHz, 88.2kHz, 96kHz, 192kHz/24biBLUETOOTH: Supports SBC/AAC/aptX/aptX-HD/LDAC D/A ConvertMaximum headphone output power: BAL:1000mW@32ΩTHD+N: <0.0003%@20mW，300ΩMaximum charging current: 2A (no Quick Charge protocols supported)Charging time: ~3.5 hours

*Hinweis zur Nutzung: Der M12 schaltet sich erst ein, nachdem er mit dem Kophörer verbunden wurde * Questyle M12 – Kleiner Klangriese Die Highlights des Questyle M12 im Überblick: Ultra-Mobiler Hi-Fi Kopfhörerverstärker mit DAC Klein, leicht und stark – Extrem kompaktes Gehäuse – aber großartige Leistung! Formatvielfalt – Kompatibel mit DSD, PCM und sogar MQA Wie ein Großer – bewährte Technik der großen Questyle Boliden Questyle M12 – Perfekt für mobiles Hi-Fi Um unterwegs verlustfreie Musik zu genießen, bietet Questyle mit dem M12 einen mobilen Hi-Fi-Kopfhörerverstärker mit DAC – selbstverständlich inklusive Questyles Kerntechnologie. Der M12 ermöglicht es, die limitierenden Fähigkeiten von integrierten Audiolösungen in Smartphones zu umgehen und auch mobil verlustfreie Musik jederzeit und an jedem Ort zu genießen. Unabhängiger SiP Current Mode-Verstärker Ein leistungsstarker Kopfhörerverstärker Die patentierte „Current Mode Amplification“-Technologie macht den grundlegenden Unterschied zwischen der Hardware von Questyle und anderen Endgeräten aus. Der Verstärker hat einen entscheidenden Einfluss auf die Klangqualität. Dank Questyles selbst entwickeltem SiP Current Mode Amplifier-Moduls ist der M12 frei von der Leistungsbegrenzung von Operationsverstärker-Chips. Dazu bietet er eine völlig andere Klanglperformance mit einem ultra-niedrigen Verzerrungsgrad von 0,0003%. Das Resultat ist eine hohe Stromausgangsleistung und eine hervorragende Klangkontrolle. Automatische Impedanz-Erkennung – Intelligente Anpassung an den Kopfhörer Wenn der M12 an einen Kopfhörer angeschlossen wird, startet das eingebaute intelligente Erkennungssystem automatisch, um die Impedanz des Kopfhörers zu ermitteln. Damit ist die Leistungsstufe (Gain) perfekt an den Kopfhörer angepasst. Bei hochohmigen Kopfhörern leuchtet die Gain-Anzeige rot. Beim Betrieb von niederohmigen und hochempfindlichen Kopfhörern reduziert der M12 den Ausgangspegel und passt sich exakt an deren Impedanz an. Bei niedriger Impedanz leuchtet die Gain LED grün. Flaggschiff DAC im Miniformat Der im M12 verbaute ESS DAC ES9281AC verfügt über Dekodierfähigkeiten bis zu PCM 384kHz/32bit und DSD256. Darüberhinaus beherrscht der Chip die MQA Renderer-Technologie. Die LED des M12 leuchtet magentafarben, wenn das Gerät einen MQA-Stream oder eine Datei rendert. Perfekte Kompatibilität Der M12 ist Plug and Play im wahrsten Wortsinne. Der kleine Stick ist vollständig kompatibel mit Android 5.1 und höheren Systemen auf gängigen Smartphones und Tablets, PCs und Apple Systemen.

Questyle M12i Mobile headphone amplifier with DAC At CES 2024, Questyle presented the second generation of the M12i mobile headphone amplifier with DAC. Following the success of the first generation M12, the Questyle M12i also offers powerful audio signal processing. It breaks the boundaries of integrated audio circuits in phones in terms of technology, cost, size and sound quality. With Questyle's unique Current Mode Amplification paired with the ESS flagship DAC chip, audio content can be enjoyed losslessly from streaming platforms with conventional hi-fi headphones. The "i" in M12i means that the Questyle M12i has been certified by Apple MFi. MFi certification guarantees perfect support for iPhone/iPad and seamless integration into the Apple ecosystem. It fulfils Apple's strict requirements for external devices in terms of power consumption. compatibility and avoids the risk of damage to phones and systems from arbitrary USB device combinations. During development, Questyle Labs conducted extensive testing and targeted optimisations for the compatibility of the M12i with mainstream smartphones and tablets. It succeeded in creating high compatibility with iOS, HarmonyOS and Android versions 5.1 and higher. As for PC applications, the M12i supports Windows 10 version 18.3 and higher (driver-free) and Mac OS. Full compatibility for true lossless enjoyment The Questyle and ESS research and development teams in the United States, China and Canada have a fruitful and long-term collaboration. The M12i features the updated ESS flagship USB DAC chip ES9281AC, which supports PCM768 and DSD512 D/A conversion (M12 supports maximum PCM384 and DSD256). The audio distortion performance and output power have been further improved compared to the previous generation. Patented SIP current mode amplification Current mode amplification technology is the fundamental hardware that sets Questyle apart from other devices. As the engine of the headphone system, the amplifier has a decisive influence on the sound quality. Thanks to the independently developed current mode amplifier module, the Questyle M12i is not restricted by the power limitations of op-amp chips, unlike similar products that use op-amp chips for amplification. It has an extremely low distortion of 0.0003% and extremely high current output power. Thanks to the patented current mode amplification and the use of TOREX System's efficient power management system, it is characterised by high performance and low power consumption. This avoids the risk of overheating or interruptions during prolonged use. Intelligent impedance matching When headphones are connected to the Questyle M12i, the built-in intelligent impedance detection automatically recognises the impedance of the headphones and adjusts accordingly. When headphones are plugged in, the M12i immediately activates the operating mode, recognises and configures the appropriate gain for the connected headphones. When the gain indicator lights up, a single indicator stands for low gain, which is suitable for low-impedance headphones. This prevents acoustic clipping. Two red indicators indicate a high gain, which ensures sufficient amplification for high-impedance headphones. When the M12i is connected as a mobile DAC to hi-fi systems, active loudspeakers etc., it automatically switches to high-level output. This ensures sufficient support for Hi-Fi audio systems. Data status indicator A single red indicator is lit and the sampling rate is not higher than 48kHz. When two red indicators are lit, the sampling rate is higher than 48kHz. Gain indicator light H high gain (two lights）) L low gain (single light) Compatible operating systems Android phones and tablets: Supports devices with Android 5.0 and above PC system: Supports devices with Windows 10 version 18.03 and above Apple phones: Supports iOS system (A separate cable must be purchased to connect to devices with Lightning interface). Apple computer: Supports Mac OS system D/A conversion capability: PCM：44.1kHz - 768kHz (16/24/32Bit) DSD：DSD64(1Bit 2.8MHz) , DSD128(1Bit 5.6MHz), DSD256(1Bit 11.2MHz) DSD512(1Bit 22.4MHz) Output power: Built-in intelligent impedance detection circuit RL=16Ω，Po=19mW; RL=32Ω，Po=21mW; RL=300Ω，Po=12.26mW; When the M12i detects an impedance of less than 70Ω, it automatically switches to low-gain When it detects an impedance of more than 70Ω, it automatically switches to a high-gain output, and at 600Ω and above, it automatically switches to 2Vrms line output. Frequency response:±0.1dB(20Hz - 20kHz)；±2dB(20Hz - 80kHz) THD + N：0.0003% DAC: ESS flagship USB DAC ES9281AC Outer material: CNC anodised black aluminium alloy Dimensions: 56.9[L] X 20.2[W] X 9.5[D] (mm)

Questyle M15 Case (only available in red)