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QULOOS MUB5 R2R Portable DAC & Headphone Amplifier (ship around late Dec)

Pre-order
Original price $ 1,300.00 - Original price $ 1,300.00
Original price
$ 1,300.00
$ 1,300.00 - $ 1,300.00
Current price $ 1,300.00
Color: Titanium

Features

  • High-End Portable DAC/AMP.
  • 19+5 Segmented R2R DAC Architecture.
  • Precisely matched Resistors Array with 0.01% Tolerance.
  • Custom Oversampling(OS) and Non-Oversampling(NOS/M1) Modes.
  • Discrete Headphone Amplifier Section with FZT Power Transistors.
  • OPA627 Buffer Stage.
  • Up to 2.5W Per Channel Output.
  • Versatile Functionality With Multiple Input Options(Coaxial, Optical, Bluetooth, and USB Type-C).
  • 3.5mm+4.4mm Headphone Outputs.
  • Line-Out Function Support.
  • 120-Level Precise Volume Adjustment.
  • Touch-Sensitive Display Panel, Physical Volume Knob.
  • Professionally Designed Shielded Power Supply.
  • Up to 8 Hours Battery Backup.
  • QC Fast Charging Support.
  • DC-IN With Battery Bypass Technology.

QULOOS MUB5 is a reference-grade portable DAC and Headphone Amplifier designed with a segmented R2R ladder DAC architecture. Quloos has professionally designed a high-precision 19+5 segmented R2R DAC architecture. They have matched resistors with 0.01% tolerance. The MUB5 has a total of 178 resistors that form this full R2R network array and provide high-resolution audio signal processing. It’s designed to bring life to your music with its ultra-clean and rich R2R DAC arrangement, a high-power discrete amplification section, and a clean, NDCS shielded power supply with 20 independent power circuits, LTC6655 voltage reference, and QA661 low-jitter crystal oscillators. Upgrade your portable arsenal with the all-new Quloos MUB5 and unlock pure high-fidelity sonic excellence for yourself!!

Pure R2R DAC Architecture

QULOOS MUB5 features a 19+5 segmented R2R DAC arrangement. It features 178 precision-matched resistors, which are matched with 0.01% tolerance. This R2R DAC arrangement provides crisp, high-resolution audio signal processing and delivers a rich, musical sound profile with high accuracy and pure high-resolution audio excellence.

Customize Your Sound With Two Filter Options

QULOOS MUB5 has two filter options, custom Oversampling(OS) and No-Oversampling(NOS/M1). The NOS mode packs an accurate, expansive, and precise sound response, while the NOS mode delivers a relaxed sound response. The NOS mode provides pure sound as it is recorded and shows no colouration from the MUB5.

Fully Discrete High-Power Amplification

QULOOS MUB5 features a fully discrete headphone amplification section with FZT power transistors and OPA627 chips in the buffer stage. It produces an impressive output thrust reaching up to 1.5W in battery mode and up to 2.5W per channel in 12V DC-in mode. With such a strong output, MUB5 drives most IEMs and Headphones with ease. Even for demanding Headphones, MUB5 works like a charm.

Multiple Input, Output Options

QULOOS MUB5 is a high-end portable DAC/AMP. It has multiple input and output options, which make the MUB5 a highly versatile device that fits into every scenario. It supports USB, Coaxial, Optical, and Bluetooth connections for input. With 3.5mm and 4.4mm headphone outputs and line-out functionality, the MUB5 can work as a headphone amplifier as well as an adjustable preamp.

Clean Power Delivery with Properly Shielded Power Supply Design

QULOOS MUB5 gets clean power to each component on the circuitry. The DAC/AMP features a specially designed NDCS shielded power supply with 20 independent power circuits, an LTC6655 voltage reference chip, and QA661 crystal oscillators. With such a clean and efficient power supply design, the MUB5 offers ultra-clean performance with no noticeable interference from the power supply. It has a rated battery life of about 7 to 8 hours and supports the QC fast charging protocol as well.

Product Specifications

Basic Specifications

  • ≈ 138 × 80.5 × 23 mm

  • ≈ 360 g

  • USB Type-C, RCA Coaxial, Optical, 3.5 mm Line-In, Bluetooth

  • 3.5 mm Single-ended / 4.4 mm Balanced (switchable PO/LO)

  • In-house developed discrete R2R DAC

  • OPA627

  • FZT power transistor fully discrete headphone amp

Digital Output

  • Bluetooth 5.0, LDAC, APTX, APTX-HD, AAC, SBC

  • Unidirectional, MUB5 as Bluetooth receiving terminal

  • UAC1.0 / UAC2.0, supports Windows, Mac, Android, iOS

  • Up to PCM 32-bit 384 kHz, DSD512

  • Up to PCM 24-bit 192 kHz, DSD64 (DoP)

Technical Specs

  • ≤ 2.6 V rms

  • BAL 4 V & SE 2 V
    BAL 2.8 V & SE 1.4 V
    BAL 2 V & SE 1 V
    Output ADJ (adjustable)

  • 20 Hz – 20 kHz (±0.5 dB)

  • 0.003% (Balanced & Single-ended)

  • 116 dB (Balanced & Single-ended)

  • 112 dB (Balanced & Single-ended)

  • 104 dB (Balanced & Single-ended)

  • 93 dB (Balanced), 64 dB (Single-ended)

  • <1Ω (Balanced), <2Ω (Single-ended)

  • 8Ω – 600Ω

Output Levels (Vrms)

  • 5.5 V rms (BAL) / 2.5 V rms (SE)

  • 2.7 V rms (BAL) / 1.1 V rms (SE)

  • 7.0 V rms (BAL) / 4.0 V rms (SE)

Output Power (mW)

  • 1500 mW + 1500 mW @ 32Ω (BAL, instantaneous)
    500 mW + 500 mW @ 32Ω (SE, instantaneous)
    320 mW + 320 mW @ 300Ω (BAL, sustained)
    80 mW + 80 mW @ 300Ω (SE, sustained)

  • 2500 mW + 2500 mW @ 32Ω (BAL, instantaneous)
    900 mW + 900 mW @ 32Ω (SE, instantaneous)
    530 mW + 530 mW @ 300Ω (BAL, sustained)
    120 mW + 120 mW @ 300Ω (SE, sustained)

Battery

  • ≈ 8 hours (HPA=PSV≠6V, 16-bit/44.1 kHz playback, DM7Ti earphones, auto screen off)

  • ≈ 4–5h (Type-C slow), ≈ 3h (Type-C fast), ≈ 3h (DC 12V ≥2A)

  • Type-C (supports fast charge): 5V ≥ 2A, 12V ≥ 1A (QC2.0)
    DC 12V Input (recommended): 12V ≥ 2A (fast charge, compatible with 5–21V stable supplies, fixed polarity)

  • Type-C charger (phone charger), DC12V ≥2A power adapter / cable

 

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