J.C ACOUSTICS UDP-6PRO DAC Headphones Amplifier

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The J.C Acoustics UDP-6PRO is a DAC headphones amplifier based on audiophile components. It features an ES9039SPRO DAC chip and an XU216 XMOS USB interface for support of high-resolution sampling rates up to PCM 32bit 768kHz and DSD512. It also boasts a balanced Class AB headphone amplifier circuit with four TPA6120A2 chips for output power of up to 7500mW under 32 ohm on its balanced headphone output.

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Reference : 20505
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1 099,00 €tax incl.

915,83 € tax excl.
Including 0,05 € for green tax

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Shipping date: 20-02-2025.

Orders placed before 12h (GMT+1) will generally be shipped the same day (working day).

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2 Years warranty

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J.C Acoustics UDP-6PRO DAC Balanced Headphones Amplifier ES9039SPRO 32bit 768kHz DSD512

J.C. Acoustics UDP-6P DAC picture

The J.C Acoustics UDP-6PRO is a DAC and headphones amplifier based on audiophile components. It features an ES9039SPRO DAC chip and an XU216 XMOS USB interface for support of high-resolution sampling rates up to PCM 32bit 768kHz and DSD512. It also boasts a balanced Class AB headphone amplifier circuit with four TPA6120A2 chips for output power of up to 7500mW under 32 ohm on its balanced headphone output.

The device is completed by a high-performance power supply consisting of a 60VA transformer and no less than 6 filter capacitors. Each component is independently powered for low noise. The front panel features an attractive 3” color IPS display with a practical, modern interface. As for connectivity, the UDP-6PRO has plenty to offer, with numerous digital inputs, two headphone outputs (6.35mm jack/4.4mm jack) and two analog outputs (RCA/XLR).

The circuit of the J.C. Acoustics UDP-6P

J.C Acoustics UDP-6PRO: Audiophile architecture

The UDP-6PRO benefits exclusively from high-quality components and an audiophile architecture to get the best out of your audio sources.

The components of the J.C. Acoustics UDP-6P

J.C Acoustics UDP-6PRO: ES9039SPRO DAC and XMOS XU216 interface

The UDP-6PRO's digital-to-analog conversion is based on an ESS ES9039SPRO DAC chip and an XMOS XU216 USB interface. This enables it to support high-resolution sampling rates up to PCM 32bit 768kHz and DSD512. In addition, an SC8422 chip supports optical/coaxial SPDIF signal processing up to 24bit 192kHz.

ES9039SPRO DAC and XMOS XU216 interface

J.C Acoustics UDP-6PRO: A balanced headphones amplifier circuit

The headphones amplifier stage features a balanced architecture with 4 OPA1642 and 4 TPA6120A2 amplifier chips for detailed, powerful sound reproduction. This configuration offers excellent dynamics and resolution across all frequencies. As a result, the UDP-6PRO's headphone outputs deliver substantial power, making it a headphone amplifier capable of driving high-end, high-impedance headphones.

Balanced 4.4mm jack headphones output power

  • 7500mW @ 32 ohm
  • 900mW @ 300 ohm
  • 450mW @ 600 ohm

6.35mm jack headphones output power

  • 1850mW @ 32 ohm
  • 225mW @ 300 ohm
  • 112mW @ 600 ohm
The amplification circuit of the J.C. Acoustics UDP-6P
J.C. Acoustics UDP-6P screen

J.C Acoustics UDP-6PRO: Color IPS display

The front panel of the UDP-6PRO headphones amplifier DAC features a beautiful 3” color IPS display. This is accompanied by a modern, practical interface. In fact, it provides access to the various information concerning the current playback, as well as navigation between the device's different parameters.

J.C Acoustics UDP-6PRO: A low-noise power supply

The UDP-6PRO's power supply circuit is based on an optimised 60VA custom-made OFC copper transformer, six filter capacitors totalling almost 30,000µF and a regulated five-line power supply, allowing a stable and clean current to be delivered independently to each component of the unit. This enables the UDP-6PRO to achieve exceptional audio performance.

The J.C. Acoustics UDP-6P power supply

J.C Acoustics UDP-6PRO overview

J.C. Acoustics UDP-6P overview
1Color IPS display
2Balanced 4.4mm headphones output
3Single-ended 6.35mm headphones output
4Multifunction button
5Balanced XLR output
6Single-ended RCA output
7Coaxial input
8Toslink optical input
9I2S LVDS input via HDMI
10USB-B input
11Power supply

Technical characteristics

Specifications
Product typeDAC / Headphones amplifier
DAC chipES9039SPRO
Amplification chips4x TPA6120A2
OPAOPA1642
Inputs1x USB-B
1x Coaxial
1x Optical Toslink
1x I2S LVDS via HDMI
Outputs1x Single-ended RCA output
1x Balanced XLR output

1x Balanced 4.4mm jack headphones output
1x Single-ended 6.35mm jack headphones output
Supported sample ratesUSB: PCM 32bit 768kHz, DSD512 (DoP & Native)
Coaxial / Optical toslink: 24bit 192kHz
I2S LVDS via HDMI: PCM 32bit 768kHz, DSD512 (DoP & Native)
DAC specifications (balanced XLR output)
Frequency response20Hz-40kHz (+/-0.2dB)
THD+N0.00015% (-6dB @ 1kHz, A-WT)
SNR120dB
Channel separation-133dB @ 1kHz
Line output powerRCA: 2.3Vrms
XLR: 4.6Vrms
Headphones amplifier specifications (balanced 4.4mm jack output)
THD+N0.00025% (4Vrms @ 1kHz, A-WT)
Frequency response133dB
Channel separation-133dB
Output power4.4mm balanced jack: 7500mW @ 32 ohm / 900mW @ 300 ohm / 450mW @ 600 ohm
6.35mm unbalanced jack: 1850mW @ 32 ohm / 225mW @ 300 ohm / 112mW @ 600 ohm
General
Power supply230V AC (Fusible 1.6A)
Power consumption< 25W
Standby: 3W
ColorSilver
Dimensions239 x 50 x 208mm
Weight3kg
Package1x J.C Acoustics UDP-6PRO
1x USB-A to USB-B cable
1x Power cable
 
Data sheet
InputSPDIF
InputI2S via HDMI
InputUSB
InputOptical
OutputXLR
OutputJack 4.4mm
OutputRCA
OutputJack 6.35mm
DAC / ADC ChipES9039MPro / ES9039MSPro
Max sampling rate768kHz
Max sampling rateDSD512
ColorSilver
ClassClass A / AB
NetworkingNo
Remote ControlNo
 
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J.C ACOUSTICS UDP-6PRO DAC Balanced Headphones Amplifier ES9039SPRO 32bit 768kHz DSD512
The J.C Acoustics UDP-6PRO is a DAC headphones amplifier based on audiophile components. It features an ES9039SPRO DAC chip and an XU216 XMOS USB...

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