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iBasso tube USB dongle DAC amp product image for used open-box reference listing
  • iBasso tube USB dongle DAC amp product image for used open-box reference listing
  • iBasso tube USB dongle DAC amp alternate product view with compact chassis
Used / Open-Box iBasso Nunchaku Tube Dongle DAC/Amp

Used / Open-Box iBasso Nunchaku Tube Dongle DAC/Amp

Reference price $179.00

Reference price is for price anchoring only. Final quote depends on condition, accessories, version, stock, and destination.

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  • Unit details confirmed before offer
  • Lab-inspected before dispatch
  • DOA support and repair path available

Product overview

The iBasso Nunchaku is a USB dongle DAC/amp built around dual miniature vacuum tubes, dual Cirrus Logic DAC chips, and both balanced and single-ended outputs. It is suited to listeners who want a compact USB-C source with a tube-flavored mode for IEMs and efficient headphones. HiFiLoop presents this page as a used / open-box private quote reference page for model research and case-by-case sourcing.

Key features

  • Dual Raytheon JAN6418 tube stage with a 22.5V anode power supply.
  • Selectable Tube and Class AB output modes for different listening preferences.
  • Dual CS43198 DAC chipset with in-house FPGA processing and a KDS femtosecond oscillator.
  • TI dual OPAmp and BUF634A output stage, with published 525mW + 525mW output power at 32Ω.
  • 0.96-inch OLED display, multi-function knob, and JRC hardware volume control.
  • 4.4mm balanced and 3.5mm single-ended outputs, with support for PCM 32-bit/768kHz and Native DSD512.

Key specifications

Product type USB dongle DAC and headphone amplifier
DAC chipset Dual Cirrus Logic CS43198
Tube stage Dual Raytheon JAN6418 tubes
Tube power supply 22.5V anode power supply
Output modes Tube mode and Class AB mode
Amplifier stage TI dual OPAmp x4 + BUF634A x4
Output power 525mW + 525mW at 32Ω
Power consumption 120mA / 5V
Display 0.96-inch OLED
Outputs 4.4mm balanced, 3.5mm single-ended
High-resolution support PCM up to 32-bit/768kHz, Native DSD512

A-Class confirmation guide

What is reviewed before a reference page moves forward.

These notes explain how lab checks, condition records, shipping boundaries, and sourcing requests are handled before manual confirmation.

01 / Lab check

Pre-Listing Lab Check

Function and condition are checked before confirmation.

02 / Condition and kit

Condition & Kit Recorded Separately

Condition is not a shortcut for every detail.

03 / Request details

Details to Share

Send the details needed for review.

04 / Sourcing path

Manual Confirmation & Sourcing Path

Start the request before confirmation.

What this listing means

This is a used / open-box reference page for this model. The exact unit, included kit, timing, and support terms are confirmed before payment.

Before you make an offer

  • Check the exact unit photos and condition notes
  • Confirm included accessories and version details
  • Use the final quote as the decision point

Inspection & condition

Function, cosmetics, accessories, and known limitations are reviewed for the exact unit before dispatch.

Shipping & support

Processing is normally 3-5 business days after confirmation. International delivery is commonly 7-15 days; DOA and repair support are confirmed by destination.

What does Reference price mean?

It is a price anchor for comparison. It is not the final quote.

Is this exact unit ready to ship?

Not from this page alone. HiFiLoop confirms the exact unit and timing before payment.

Can HiFiLoop help me find another unit?

Yes. Share the target model, preferred condition, budget range, and destination so HiFiLoop can look for a suitable unit.

Need confirmation

Confirm the exact unit before the final decision.

Send an offer, sourcing request, or availability check when you want exact-unit photos, accessories, condition notes, and quote details.

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