DEERSYNC H4 4 Channel Headphone Amplifier User Guide

DEERSYNC H4 4 Channel Headphone Amplifier

Specifications

• Product Name: Deersync H4 4-channel Headphone Amplifier
• Channels: 4
• Application: Professional studio headphone amplifier
• Warranty: 1 year from the date of original purchase

Product Usage Instructions

Protecting Your H4
Ensure safety by following these guidelines:

• Read and retain the safety and operating instructions for future reference.
• Do not attempt to open the unit as there are no user-serviceable parts inside.
• Connect the unit only to the mains power specified on the rear panel.
• Use the provided power cord with a sealed mains plug suitable for your local supply.
• Avoid obstructing ventilation slots to ensure proper airflow.

Getting to Know Your H4:

Functions
The H4 features the following functions:

• Main Volume Control: Adjusts the main output volume.
• Sub Volume Control: Controls specific channel output volume.
• Mute: Toggles mute on/off.
• Aux Level: Adjusts blending depth between main and auxiliary input signals.
• Main Level: Switch to adjust the level of main input volume.
• Headphone Output Channel: Provides headphone outputs for each channel.

FAQ

Q: How do I contact for warranty service?
A: For warranty service, please contact Deersync’s international distributor, Yeahtone Technology Inc. by email at info@yeahtone.com.

Thank you for purchasing Deersync H4 4-channel headphone amplifier. The H4 is a 4-channel professional studio headphone amplifier with rich application scenarios.

Protect your H4

This symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosure. Voltage that may be sufficient to constitute a risk of shock.
This symbol, wherever it appears, alerts you to important operating and maintenance instructions in the accompanying literature. Please read manual.

• Read Instructions:
  Retain these safety and operating instructions for future reference. Heed all warnings printed here and on the equipment. Follow the operating instructions printed in this user guide.

• Do Not Open:
  There are no user serviceable parts inside. Refer any service work to qualified technical personnel only.

• Power Sources:
  Only connect the unit to mains power of the type marked on the rear panel. The power source must provide a good ground connection.

• Power Cord:
  Use the power cord with sealed mains plug appropriate for your local mains supply as provided with the equipment. If the provided plug does not fit into your outlet consult your service agent. Route the power cord so that it is not likely to be walked on, stretched or pinched by items placed upon or against.

• Grounding:
  Do not defeat the grounding and polarization means of the power cord plug. Do not remove or tamper with the ground connection on the power cord.

• Ventilation:
  Do not obstruct the ventilation slots or position the unit where the air required for ventilation is impeded. If the unit is to be operated in a rack, case or other furniture, ensure that it is constructed to allow adequate ventilation.

• Heat:
  Do not locate the unit in a place close to excessive heat or direct sunlight, as this could be a fire hazard. Locate the unit away from any equipment, which produces heat such as: power supplies, power amplifiers and heaters.

• Environment:
  Protect from excessive dirt, dust, heat, and vibration when operating and storing. Avoid tobacco ash, drink spillage and smoke, especially that associated with smoke machines.

• Handling:
  To prevent damage to the controls and cosmetics avoid rough handling and excessive vibration. Protect the controls from damage during transit. Use adequate padding if you need to ship the unit. To avoid injury to yourself or damage to the equipment take care when lifting, moving or carrying the unit.

• Servicing:
  Switch off the equipment and unplug the power cord immediately if it is exposed to moisture, spilled liquid, objects fallen into opening, or the power cord or plug becomes damaged during a lightning storm or if smoke odor or noise is noted. Refer servicing to qualified technical personnel only.

• Installation:
  Install the unit in accordance with the instructions printed in the user guide.

Warranty

Deersync LLC warrants that the product conforms substantially to the specifications contained in the Product’s documentation for a period of 1 year from the date of original purchase. In the case of a valid warranty claim, Deersync’s liability will be, at its option, to repair or replace the product without charge or, if this is not possible, to refund the purchase price to you.
For warranty service, please contact Deersync’s international distributor, Yeahtone Technology
Inc. by email: info@yeahtone.com.

Getting to know your H4:

This multichannel headphone amp has just been launched in 2022. It can be one of the most valuable studio tools. Balanced inputs ensure low noise and distortion, while 1/8” stereo and RCA aux inputs let you flexibly connect different source device. The extra large knob of the master volume control makes the operation more convenient. The aux and main inputs volume can be controlled independently. Mute is setted to save your ears.
Deersync H4 4-channel headphone amplifier is perfect for any studio or desktop workstation. Its compact design is also great for your mobile devices of laptop or smartphone when you are recording on the go.
Clean sound performance, easy-to-use volume control and the portable industrial design make it ideal for small professional recording studios and immersive Hi-fi listening experience.

Functions

1. Main volumn control：
   Control the main output volumn.

2. Sub volumn control:
   Control the specific channel output column.

3. Mute:
   Mute on/off.

4. Aux level:
   The Aux level adjusts the blending depth between the main signal source and the auxiliary input signal.

5. Main level:
   Switch to adjust the level of main input volumn.

6. Headphone output channel
   1/4″ stereo output.

7. Input 1 (AUX 1)
   Stereo RCA input.

8. Input 2
   Stereo 1/4”input.

9. Input 3 (AUX 2)
   1/8″ input.

10. Power in

11. Power Switch
    Power on/off.

Features

• Dedicated 4-channels output volume control
• Easily control volume on each headphone channel and the main channel separately
• Each channel includes a 1/4″ stereo output, volume control, and plenty of gain
• Aux/Main independent input volume control
• Master mute switch lets you easily protect your ears when changing connections
• Multiple connections possibility, including two 1/4” balanced TRS inputs, one stereo RCA input, and one 1/8”Aux input
• Perfect for Pro/Home studio, live, podcasting, and radio applications

Specifications

• Analog input: 2 x 1/4″ (left, right), 2 x RCA (aux 1), 1 x 1/8″ (aux 2)
• Output channel: 4 x 1/4″ TRS
• Output power: 604mW/ Channel, 32Ω
• Noise level: -110dBu
• Max output level: 9dBu, 1% THD+N
• Frequency response: 19Hz-35kHz
• Dimensions: 4.75””W x 4.5”Dx 2.25”H
• Weight: 12.3oz
• Power Requirements: 15V DC

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