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Questyle CMA Twelve DAC/Amp (Open Box) [Grade A, Full Warranty]
bluetooth supported
desktop
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✓ 1 year limited Questyle warranty
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Product Details
↓ Details provided by Questyle ↓
(Specifications and appearance of this product are subject to change without notice)
CMA Twelve
New Flagship DAC / Headphone Amp
CMA Twelve, the new flagship DAC / Headphone Amp from Questyle inherits their classic desktop design format and outperforms its peers once again. It marks the anniversary of Questyle’s revolutionary Current Mode Amplification technology, invented 12 years ago.
Design
The elegant lines and laser etched text for status and volume echo the professional “genes” of the Questyle family. Serious thought for every detail is revealed with the amber glow of each LED indicator against the black or gold, sandblasted chassis
Distinctive Questyle Design
Only when you see it will you truly understand the exquisite finish and design detail achieved between Questyle and their manufacturing partner, Foxconn, setting new benchmarks in technological standards. The chassis of the CMA Twelve has very high efficiency for heat dissipation, which ensures it will work with absolute stability in pure Class A, keeping the temperature at 45 degrees.
Resonance Control
Mechanical vibration will affect audio signal processing and the resulting sound. To avoid resonance, the CMA Twelve chassis is formed from 10mm-thick aircraft-grade Aluminum 6063, with high precision machining techniques of ±0.02mm.
Technology
System
Giving Full Performance to Your Headphones
CMA Twelve is designed with four groups of Current Mode amplifiers, exhibiting forceful driving power and an ultra-low distortion level of a mere 0.0005%. Plus the high-performance BIAS Control System, CMA Twelve will give full performance to your headphone or speaker systems and bring you an exceptional listening experience.
Balanced headphones with a 4.4mm connector are a rising trend with many headphone manufactures including Sennheiser, Audio Technica and Sony, launching products with 4.4mm-connections. CMA Twelve is Questyle’s first device to feature the 4.4mm jack and Questyle is committed to support this growing trend.
Serve as A Digital Monitor in Studios
In addition to SPDIF and Optical inputs, the CMA Twelve supports a professional AES input and XLR output. Live recordings can be monitored in real time via the 6.35mm headphone output. Output level matching is user switchable between Studio and Standard mode. In the Studio mode, the power level will increase from 14dBu up to 20dBu instantly, matching it with studio-level professional equipment.
Bringing Out The Sound Quality of Streaming
Digital audio signals from your PC, music server, CD or Blu-ray can be sent to the CMA Twelve via AES, SPDIF, Optical or USB. The core patented technologies of Current Mode Amplification, True DSD and 3x Clock Asynchronous Transmission allow the CMA Twelve to offer outstanding performance from its DAC and pre-amplifier. The specially designed ADJ/FIX switch is used to match with power amplifiers and active speakers.
Specifications
Whole Device
· Chassis Materials: special CNC tooled Aluminum
· Dimension: 12.99”（330mm）[ W ]×7.87”（200mm）[ D ]×1.38”（55mm）[ H ]
· Voltage：100-120V or 220-240V, the voltage is switchable.
· Power Consumption: 17W
DAC+Headphone Amplifier Section
- Outputs:4.4 mm balanced headphone jack
4PIN balanced headphone jack
6.35mm headphone jack
- Max Output Power(Po):
247mW @ 300Ω; 900mW @ 32Ω(6.35mm headphone jack)
825mW @ 300Ω; 2W @ 32Ω (balanced headphone jack)
- THD + N:
0.00070% @Po=100mW, 300Ω
0.00167% @ Po=50mW, 32Ω
- Frequency Response:
DC-20kHz(+0, -0.4dB)@0dBFS, 24Bit, 192kHz
DC-80kHz(+0, -3dB)@0dBFS, 24Bit, 192kHz
- SNR: 112dB, non-weighting
DAC+Pre-Amp Output Section
- USB Type B Input:Support 44.1kHz-384kHz/16Bit-32Bit PCM and DSD Native DSD64, DSD128, DSD256, as well as DSD64, DSD128, DSD256 of DoP format
(Note: support Win XP, Vista, Win7, Win8, Win10 and Mac OS)
- Digital Input & Output:
SPDIF input and output, Optical input, AES/EBU input
Support 44.1kHz-192kHz/16Bit-24Bit PCM
- Pre-Amp & DAC Section:
Balanced XLR x1 pair, unbalanced RCA x1 pair
STANDARD 14dBu: XLR: 5.084V RCA: 2.549V
STUDIO 20dBu: XLR: 8.887V RCA: 4.475V
THD+N@STUDIO 20dBu: XLR: minimum at 0.00085% RCA: minimum at 0.00115%
SNR: XLR:>112dB RCA:> 109dB (non-weighting)
(Note: FIX/ADJ: Fixed Output Mode or Adjustable Output Mode of the pre-amp.)
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