X400 V3.0

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X400 V3.0 DAC+AMP Expansion Board - Front
X400 V3.0 DAC+AMP Expansion Board - Back
X400 V3.0 DAC+AMP Expansion Board
X400 V3.0 Aluminum Metal Enclosure
X400 V3.0 Aluminum Metal Enclosure

Overview

This is a redesigned X400 audio expansion board. We have adopted a lot of customer feedback on the previous version. We have made many improvements based on the previous version. I believe you will like it.

X400 V3.0 DAC+AMP Expansion Board

Features

  • Full-HD audio – up to 24-bit/192kHz playback
  • Audiophile TI Burr Brown 32-bit/384kHz DAC (TI PCM5122)
  • Class leading audio; 112db SNR, and THD of 0.0019%
  • Built in High quality Class-D stereo audio amplifier (TI TPA3118D2)
  • Up to 2×30W Into a 8-Ω BTL Load at 24Vdc
  • Capable of driving 4 Ohm speakers (also works with higher impedance speakers)
  • Built in high quality audio headphone amplifier (TI TPA6133A)
  • Uses the Texas Instruments ultra-low-noise voltage regulator (output noise< 10μVRMS)
  • Uses the Texas Instruments high efficiency step-Down DC converter (up to 95%)
  • 6V~26Vdc converted to 5.1V, 3A to power the Raspberry Pi
  • Uses the genuine ALPS RK163 series potentiometer for smooth volume adjustment
  • Built in high quality IR sensor (Vishay -the world's leading supplier of infrared receivers)
  • Onboard RCA connectors
  • Onboard 3.5mm stereo headphone jack
  • Onboard speaker & power screw terminals
  • Onboard 4pin PH2.0 connector allowing to connect a external lighted power switch to control power
  • Onboard gold-plated high-current DC power jack (5.5x2.5mm)
  • Uses the digital I2S audio signals to reduce CPU load over USB audio solutions
  • Connects directly to the Raspberry Pi - No wiring required
  • Powers the Raspberry Pi - no additional power supply
  • Reserved Raspberry Pi GPIO pin header (2x13Pins)
  • Pop-noise can be improved by enabling GPIO control
  • AMP can be enabled / disabled with jumper link

WARNING:

DO NOT APPLY POWER TO YOUR RASPBERRY PI VIA THE PI's MICRO USB SOCKET.

Specification

  • Power supply: 6-26Vdc,( >=3A is recommend)
  • GPIO used : LRCK - IO19, BCK - IO18, DATA - IO21, IR - IO26, AMP mute - IO22
  • Analog audio output level: 2V RMS
  • Headphone max output power: 142mW at 16Ω
  • Amplifier max output power: 2×30W at 8Ω BTL Load at 24Vdc
  • Resolution/Sampling Rate: upto 24bit / 192KHz (Raspberry Pi I2S)
  • PCB size 87 x 56mm

Power Supply Require

DC 6-26V,( >=3A is recommend)

Please refer to DC 19V 2A Power Supply

Packing List

  • 1 x X400 V3.0 Expansion Board
  • 1 x Installation screw pack

X400 V3.0 Aluminum Metal Enclosure

Note: Please remove the jumper cap on the PWR (on the X400 board beside the 3.5mm jack headphone), or the power switch will not work normally. Please refer to FAQ 3.

Features:

  • Ultra-compact aluminum chassis
  • All ports and slots of the case can match with Raspberry Pi and X400 perfectly
  • Exhaust holes surface can reach perfect heat dissipation
  • Equipped with 19mm metal latching power switch
  • Equipped with high quality solid aluminum potentiometer Knob
  • Raspberry Pi status LEDs still visible after installation
  • Easy to change the Raspberry Pi OS SD card - Not need to open the case

Packing List:

  • 1x X400 v3.0 enclosure
  • 1x Metal power switch
  • 1x Aluminum potentiometer Knob
  • 4x Screw M2.5 *28mm
  • 6x Screw M3 *6mm
  • 1x 1.5mm hex kety

X400-V3.0-Aluminum-Metal-Enclosure-Installation Guide.jpg

User Manual

More detail please refer to web site

For Volumio

DAC Model: Please choose ST400 or IQAUIDO-dac

FAQ

1. Why my headphone left channel has no sound?

Customer Feedback: I am having a problem with the headphone left channel. The sound is out of phase; the voice of the signer is almost missing on the left channel when I am using headphones.

Answer: If you happen to meet this problem, please just contact us by email and attach order number, and we will help you send a headphone cable to solve this problem.

2. Can X400 v3.0 board can be used on Raspberry Pi Zero W or Raspberry Pi Zero?

Answer: Theoretically speaking it will be compatible, but not actually it is tested, so we can not confirm.

3. Why the power switch isn't working? The LED is always green but doesn't function. When I put the power on, the Raspberry Pi is booting regardless of whether the button is on or off.

Answer: There is a jumper cap on the PWR (on the X400 board beside the 3.5mm jack headphone), when using an external power switch to control power on/off, please remove the jumper cap. Please refer to the following picture. X400 board PWR.jpg

4. Which DAC model do I set with piCoreplayer?

Plase choose the iqaudio-DAC .


Add your comment
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Anonymous user #3

7 days ago
Score 0++
Which DAC model do I set with piCoreplayer? Thanks

Admin

7 days ago
Score 0++
Hello, please choose iqaudio-DAC .

Anonymous user #2

12 days ago
Score 0++
Is it normal, that the volume controller doesn't take effect on the cinch connectors?

Admin

11 days ago
Score 0++

Hello,

Please send your order number and item link you order to support@geekworm,com . Please describe the problem details clearly it is better if any pictures can help.

Anonymous user #2

12 days ago
Score 0++

Hello, it seems that the output via headphone can make some noise from other electric components in the electric circuit. But via cinch connector it is not available.

With my X400 V2.0 via headphone there are no unwanted noises.

Admin

11 days ago
Score 0++

Hello,

Please send your order number and item link you order to support@geekworm,com . Please describe the problem details clearly it is better if any pictures can help.

Anonymous user #1

12 days ago
Score 0++
hi, may I use a power supply with paramaters 70W 24V 4A?

Admin

12 days ago
Score 0++

Hello sir,

Yes, it is ok, the power supply requiremnet is DC 6-26V,( >=3A is recommend).