TECHNOLOGY

CMA400i can drive headphones in full-balanced mode as it features four groups of pure Class A Current Mode amplification circuits, and supports a 4PIN balanced XLR output, a 2.5mm balanced headphone jack and a 6.35mm standard headphone jack.

In addition, the new design of Gain Control switch at the bottom of the chassis benefits CMA400i with perfect driving power for different headphones.

CMA400i is designed with Questyle patented True DSD technology and AKM AK4490 DAC chip. It processes DSD signals without any PCM converting and provides True DSD.

Built with four groups of pure Class A Current Mode amplifiers and all discrete circuit, which achieves the ultra-low distortion level of 0.0006% and ultra-wide bandwidth up to DC-600kHz (+0, -3dB).

The impressive technical performance together with warm and powerful sound makes CMA400i comparable with a high-end headphone amplifier.

High-end components ensures ultra-high fidelity sound. Power supply plays a vital role. Customized Noratel toroidal transformer. Over 10 groups independent power supply system.

CMA400i supports pre-amp unbalanced (RCA) and balanced (XLR) outputs. RCA pre-amp output level is up to 4Vrms, and XLR up to 8Vrms, which can meet the requirements of most power amplifiers for output level. Volume control works in analog mode only. It is user-friendly for users of high-end active speakers. CMA400i supports 4PIN balanced output. Four groups of pure Class A current mode amplification circuits drive headphones in full balanced mode, doubling the output voltage, quadrupling the output power against that of single-ended mode. It can easily drive headphones with high impedance and low sensitivity rating and is able to reveal the full performance of your headphones.

1) Support USB, SPDIF, and Optical digital inputs.
2) USB port supports 44.1k-384k/16-32Bit PCM files, as well as Native DSD64, DSD128, DSD256, and DoP64, DoP128 decoding.
3) AK4490 DAC chip; DAC power supply voltage is up to +/-7V, producing huge dynamics.
4) Four groups of amplifiers working in current mode and Class A state only support 4PIN full balanced output and 6.35mm standard headphone output.
5) Black version sells abroad.
6) The new feature of Gain Control allows CMA400i to well match with different types of earphones or headphones.