Questyle CMA18 Master – Flagship Desktop DAC & Headphone Amplifier

The Questyle CMA18 Master is a flagship desktop DAC and headphone amplifier designed for audiophiles, professional listeners, and high-end stereo systems seeking reference-level sound quality. Featuring Questyle’s patented Current Mode Amplification (CMA) technology and a flagship ESS Sabre ES9039PRO DAC, the CMA18 Master delivers exceptional clarity, dynamic range, and lifelike sound whether driving sensitive in-ear monitors or full-size headphones.

As a versatile desktop centerpiece, the CMA18 Master functions as a standalone DAC, headphone amplifier, or preamplifier for active speakers and power amplifiers. Its fully balanced architecture, robust power output, and ultra-low distortion make it ideal for high-resolution audio sources, offering a true high-end listening experience.

Key Features

• Flagship ESS Sabre ES9039PRO DAC
  Supports 32-bit / 768 kHz PCM and Native DSD512 decoding for ultimate audio fidelity and detail.
• Patented Current Mode Amplification (CMA)
  Processes audio in the current domain for ultra-low distortion, precise transient response, and a pitch-black noise floor.
• Fully Balanced Headphone Amplifier
  Balanced and single-ended outputs drive a wide range of headphones with authority and accuracy.
• Multiple Input Options
  USB-C and USB-B digital inputs, optical and coaxial S/PDIF, Bluetooth with high-resolution codecs, and analog RCA input for diverse system integration.
• Preamp Outputs with Adjustable Levels
  Balanced XLR and unbalanced RCA preamp outputs with selectable output modes and level control, perfect for integration with active speakers or power amplifiers.
• High-Resolution Bluetooth Support
  Built-in Bluetooth supports aptX HD and LDAC for high-quality wireless streaming.
• Premium Construction & Design
  CNC aluminum chassis with sandblasted matte finish, precision mechanical switches, and amber indicator lights for a refined, durable design.

Technical Specifications

Digital Audio Performance

• DAC Chipset: ESS Sabre ES9039PRO
• PCM Support: 44.1 kHz – 768 kHz / 32-bit
• Native DSD Support: DSD64, DSD128, DSD256, DSD512
• DSD over PCM (DoP): DSD64, DSD128, DSD256

Connectivity

• Digital Inputs: USB-C, USB-B, Optical S/PDIF, Coaxial S/PDIF
• Bluetooth: SBC, AAC, aptX, aptX HD, LDAC (96 kHz / 24-bit)
• Analog Input: RCA standard level

Headphone Outputs

• 6.35 mm single-ended
• 4.4 mm balanced
• 4-pin XLR balanced
• Selectable bias and gain settings

Headphone Output Power

• 6.35 mm: 188 mW @ 300Ω; 1.5 W @ 32Ω
• 4.4 mm / 4-pin XLR: 765 mW @ 300Ω; 2 W @ 32Ω

Headphone Amplifier Performance

• Total Harmonic Distortion + Noise: <0.0003%
• Frequency Response: ±0.2 dB (DC – 22 kHz)
• Signal-to-Noise Ratio: 6.35 mm: >117 dB; Balanced outputs: >120 dB

Preamp Output Levels

• RCA: 2 V (Standard), up to 14 dBu (Studio mode)
• XLR: 4 V (Standard), up to 20 dBu (Studio mode)

General

• Construction: Sandblasted CNC aluminum chassis
• Controls: Mechanical input and mode switches, analog volume control
• Desktop format with premium industrial design

Why Choose the Questyle CMA18 Master?

The CMA18 Master combines state-of-the-art digital decoding, current-mode amplification, powerful balanced outputs, and versatile connectivity into one flagship unit. It excels as a reference DAC, high-power headphone amplifier, or central preamp for high-end stereo systems, delivering immersive detail, dynamic impact, and expansive soundstage. This makes it a top choice for serious audiophiles and professional listeners seeking the ultimate desktop listening experience.