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Fosi Audio ZH3 DAC Headphone Amplifier and Preamplifier

BH #FOZH3 • MFR #ZH3
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Fosi Audio ZH3 DAC Headphone Amplifier and Preamplifier
Key Features
  • AKM4493SEQ DAC Chip
  • Up to 32-Bit / 768 kHz PCM and DSD512
  • Bass & Treble Controls with Six Filters
  • Up to 2570mW per Headphone Channel
Equipped with an AKM4493SEQ DAC Chip and support for up to 32-bit / 768 kHz PCM and DSD512, the Fosi Audio ZH3 DAC and Preamp with Headphone Amplifier is designed to be a central part of hi-fi audio systems. Input connections in the form of USB, coaxial, optical, and stereo RCA connectors let you integrate your favorite source devices. Rear panel stereo XLR and RCA output connectors can feed into active speakers, while two separate headphone outputs on the front panel can drive power-demanding headphones and in-ear monitors. Up to 2570mW per headphone channel ensures compatibility with various models.
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Fosi Audio ZH3 Overview

Equipped with an AKM4493SEQ DAC Chip and support for up to 32-bit / 768 kHz PCM and DSD512, the Fosi Audio ZH3 DAC and Preamp with Headphone Amplifier is designed to be a central part of hi-fi audio systems. Input connections in the form of USB, coaxial, optical, and stereo RCA connectors let you integrate your favorite source devices. Rear panel stereo XLR and RCA output connectors can feed into active speakers, while two separate headphone outputs on the front panel can drive power-demanding headphones and in-ear monitors. Up to 2570mW per headphone channel ensures compatibility with various models.

Bass and treble with six different filter types can be adjusted via the multi-function potentiometer. Furthermore, swappable op-amps offer you further sonic exploration. The ZH3 comes with a complete set of accessories, including USB, power, and trigger cables, an IR remote, and a 1/4" adapter.

LCD Display for Controlling Functions
A 1.5" LCD display allows you to change volume, tone, inputs, and more with the multi-function potentiometer on the front panel.
Wide Tuning Coverage
±12dB bass and ±10dB treble adjustments means you can tailor the sound to your liking. Tone controls can also be completely disabled for transparent listening.
Volume Memory
When switching between outputs, the ZH3 adjusts to previous levels for safe transitions between different devices.
One-Click Power Management
Utilizing the 12V trigger input and output, easily turn off your compatible system with one action.
Energy-Saving Protection
An auto off power function engages after 30 minutes when no signal is presented.

Fosi Audio ZH3 Specs

Key Specs
Number of Headphone Channels
Single Channel
Recommended Headphone Impedance
16 to 300 Ohms
Headphone Output Power
Up to 640 mW (1/4")
Up to 2570 mW (4.4 mm)
Audio I/O
1/4" / 4.4 mm Balanced (Headphone)
XLR / RCA (I/O)
Digital Audio I/O
TOSLINK Optical S/PDIF Input
RCA Coaxial S/PDIF Input
USB
USB-C
Wireless
No
Power Requirements
AC/DC Power Adapter (Included)
Form Factor
Tabletop
Number of Headphone Channels
Single Channel
Recommended Headphone Impedance
16 to 300 Ohms
Headphone Output Power
1/4":
640 mW per Side into 32 Ohms

4.4 mm:
2570 mW
Digital Chipset
DAC:
1 x AKM 4493SEQ
1 x XMOS XU316
Analog Circuitry
Preamplifier Op-Amp:
4x OPA1612
EQ
2-Band EQ
Display
1x 1.5" LCD
Connectivity
Analog Audio I/O
1x 1/4" TRS Unbalanced Headphone Output
1x 4.4 mm TRRRS Balanced Headphone Output
1x Stereo 2RCA Unbalanced Phono Input
2x XLR 3-Pin Balanced Line Output (1 Stereo Pair)
1x Stereo 2RCA Unbalanced Line Output
Digital Audio I/O
1x TOSLINK Optical S/PDIF Input
1x RCA Coaxial S/PDIF Input
USB
1x USB-C (Digital Input)
Other I/O
1x 1/8" / 3.5 mm 12 V Trigger Input (Rear Panel)
1x 1/8" / 3.5 mm 12 V Trigger Output (Rear Panel)
Wireless
No
Performance
Frequency Response
20 Hz to 20 kHz ±0.1 dB
Dynamic Range
4.4 mm Headphone:
≥ 119 dB

1/4" Headphone:
≥ 121 dB
Impedance
Headphone :
16 to 300 Ohms
THD+N
4.4 mm Headphone:
≤ 0.00018%

1/4" Headphone:
≤ 0.00024%
SNR
4.4 mm Headphone:
≥ 119 dB

1/4" Headphone:
≥ 121 dB
Noise
4.4 mm Headphone:
≤ 4.9 µV

1/4" Headphone:
≤ 1.9 µV
Digital Audio
Sample Rates
USB-C Input:
Up to 768 kHz (PCM)

TOSLINK Input:
Up to 192 kHz (PCM)

RCA Coaxial S/PDIF Input:
Up to 192 kHz (PCM)
Bit Depths
Up to 32-Bit
Power
Power Requirements
AC/DC Power Adapter (Included)
DC Input Power
12 VDC at 2A
Physical
Dimensions
6.4 x 6.1 x 2" / 16.2 x 15.5 x 5 cm
Packaging Info
Package Weight
3.23 lb
Box Dimensions (LxWxH)
14 x 8.3 x 3.2"

Fosi Audio ZH3 Reviews

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