Questyle CMA Fifteen
DAC & Headphone Amplifier
Questyle CMA Fifteen
DAC & Headphone Amplifier
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After 3 years of pre-research with ESS, Questyle selected the flagship DAC ES9038PRO, a decoding chip with the most powerful performance of any DAC invented to date, and jointly launched CMA Fifteen with ESS, supporting 32bit/768K and DSD 512 master band formats.
Questyle 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.
In designing the CMA Fifteen, Questyle 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.
- AC Input: 100-120V / 220-230V (switchable)
- Power Consuming: <30W
- Size: 330*200*55mm (Jacks are not included.)
- Digital Input:
- USB x 2 (Including a high-priority USB Type-C interface and a USB Type-B interface.)
- PCM: 44.1khz-768kHz/32bit
- DSD: Native DSD 512; DOP DSD 256
- MQA: Full / Core decoder USB 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.
- Note: Windows 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.
- Optical Input x 1:
- PCM: 44.1kHz~192kHz/24bit
- Coaxial Input x 1:
- PCM: 44.1kHz~192kHz/24bit
- Bluetooth Input x 1: SBC, AAC, LDAC (At the highest level of 96kHz/24bit, 990kps/909kps)
- Analog Input: RCA x 1, 2Vrms standard level
- Headphone Amplifier Output Interface:
- 6.35mm standard headphone jack x1
- 4-PIN balanced headphone jack x1
- 4.4mm balanced headphone jack x1
- Note: 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.
- Pre-Amp Output Interface:
- XLR x 1
- RCA x 1
- Note: The output level can be set by Standard/Studio switch and volume can be controlled by ADJ/FIX switch on the rear panel.
Pre-Amp Output Specs
- Max Analog Output Amplitude:
- RCA: 2V (Standard), Studio mode output up to14dBu
- XLR: 4V (Standard), Studio mode output up to 20dBu
- THD+N:
- RCA: 0.0004%
- XLR: 0.0003%
- Frequency Response: ±0.2dB (DC-22kHz)@48kHz/24bit)
- SNR:
- RCA: >116dB
- XLR: >119dB
Headphone Amplifier Output Specs
- Max Output Power:
- 6.35mm: 188mW @ 300Ω 1.5W @ 32Ω
- 4.4mm balanced / XLR 4-PIN balanced: 765mW @ 300Ω 2W @ 32Ω
- THD+N:
- <0.0003% @300Ω
- <0.001%@32Ω
- Frequency Response: ±0.2dB (DC-22kHz)@44.1kHz/24bit
- SNR:
- 6.35mm: >117dB
- 4.4mm balanced / XLR 4-PIN balanced: >120dB
UPC | 193838111335 |
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