Introducing the Questyle – CMA18 Portable DAC & Amp

Embrace Every Possibility,
Compromise None.

Compact in size, powerful in output. The flagship mobile DAC/amp, the Questyle CMA18 Portable, has a distinctive, faultless, and original design that comes in a portable package. Performance compromises are no longer associated with portability.

The main goal of the CMA18 Portable’s design was to produce a portable Hi-Fi system for laptops and smartphones that would perform on par with the best desktop configurations.

Design and Craftsmanship

The CMA18 Portable has a distinctive look that highlights its extreme performance. Its sandblasted aviation-grade aluminium surfaces have silver high-gloss buttons and side panels, special Corning glass on the front and back with a gradient dot pattern, and an RF signal suppressing coating. We just pay attention to pure audio performance. The internal amber-colored LEDs emphasise the unmatched design when they are in operation, blending in flawlessly with the glass cover.

Performance

The powerful driving power of the CMA18 Portable is provided by four sets of patented PCT-class current-mode SiP chips, each of which has a peak power of up to 5W and a peak current of 2A. High-energy current-mode amplifier technology combined with gain adjustments provides strong and adaptable performance.

The latest XMOS XU316 platform combined with the AK4493 DAC chip
supports HD D/A converting up to PCM768/DSD512. Four sets of self- developed current-mode PCT patented SiP chips, CC630/CA630, ensure
the best thrust and lowest power consumption in the industry, coupled with
4.4mm headphone output and high/low gain mode switching, unlocking the
full potential of all IEMs and top-tier over-ear headphones. Optional 3.5mm/4.4mm headphone jacks and gain switching ensure
precise matching with any headphones. PCM768 | 32Bit
Exceptional D/A converting capabilities
AK4493
AKM DAC chip
XU316
Latest XMOS USB platform
CC630/CA630
Four sets of self-developed current-mode
patented SiP chips
Bluetooth mode supports both aptX HD and LDAC, ensuring optimal
wireless sound quality with a stable wireless connection.

Clean from the Sourc

The CMA18 Portable’s 4300mAh lithium battery power management system ensures the purest sound
quality and isolates top-tier performance from the power supply dependence of smartphones and PCs

lithium battery power management system: 4300mAh

Battery life: >10h

CMA18 Portable is MFi certified, joining the mobile true-lossless
era with Apple. CMA18 Portable is compatible with USB-A, USB-C, and
Lightning interfaces, available for all smartphones and P

Analog Input Recording Functio

The CMA18 Portable has two stereo line-in inputs – 3.5mm (AUX IN) and
4.4mm (BAL IN). They can be connected to any audio equipment that
has line-out analog outputs, including turntable systems, pre-amps, mixing consoles, and more. Once connected, the CMA18 Portable is
capable of functioning as an external, lossless, high-performance
analog-to-digital (ADC) recording device for either of these inputs. It also
allows the user to simultaneously monitor the input during the recording
process via the 3.5mm or 4.4mm outputs. How to use the recording function: When the CMA18 Portable is set to
either AUX IN or BAL IN mode and connected via USB to a host device
(any phone, tablet, or computer, etc that ensures the recording over USB
sound cards), both the USB connection and REC indicator lights will
appear, signaling that the recording function is enabled. There are no
special requirements for recording software as long as it supports
recording via external USB sound

Expandability

Given that high-resolution lossless streaming is accessible on
smartphones and PCs, we have also considered the needs of
audiophiles, as well as those interested in recording and
musical production. The user-friendly interface and powerful performance of
CMA18 Portable – combined with Questyle’s released 3.5mm- RCA and 4.4mm-XLR cables – enable the CMA18 Portable to
connect to 2-channel Hi-Fi devices, bringing wonderful
lossless music to your home. It also allows recording and
musical production professionals to connect to monitor
speakers and mixing consoles on-site

Specifications

USB Playback: Maximum support PCM768kHz/32bit, DSD Native: DSD64, DSD128, DSD256, DSD512, DSD Dop: DSD64, DSD128, DSD256
Supports UAC 2.0
Supports: Win XP / Vista / Win7 / Win8 / Win10 / Win11
/ Linux / Android / HarmonyOS / macOS and iOS

USB Recording: Fixed 48kHz/32bit stereo recording
Supports: Win XP / Vista / Win7 / Win8 / Win10 / Win11
/ Linux / Android / HarmonyOS / macOS and iOS

OPTICAL: Supports 44.1kHz, 48kHz, 88.2kHz, 96kHz, 192kHz/24bi

BLUETOOTH: Supports SBC/AAC/aptX/aptX-HD/LDAC D/A Convert

Maximum headphone output power: BAL:1000mW@32Ω

THD+N: <0.0003%@20mW，300Ω

SNR: >120dB

Playback battery life: >10hours

Maximum charging current: 2A

Charging time: ~3.5 ho