Why is there excessive noise coming from my Cayin HA-3A Amplifier?
Excessive noise from your Cayin Amplifier can stem from a few sources. Check that the input source is properly connected and that the interconnects are correctly installed. Also, an interconnect grounding disconnection could be the cause, so try replacing the interconnect.
How to fix unfocused soundstage and imaging on my Cayin Amplifier?
An unfocused soundstage and imaging on your Cayin Amplifier may be due to reversed left and right channels from your source equipment. Reinstall the related cables correctly. Also check the polarity of the headphone and speaker cables.
What to do if my Cayin HA-3A has no sound after powering on?
If your Cayin Amplifier produces no sound after being powered on, several factors could be the cause. First, ensure the power cord is securely connected and that the main power supply is functioning. Check if the main fuse is out and replace it with one of the same specification if needed. Verify that your input source is working and correctly selected. Also, make sure the volume isn't at the minimum position; if it is, turn it up. Confirm that all interconnects and headphone cables are securely connected, and that the headphone output is correctly specified. Finally, check that you've selected the correct output (headphone or speaker) and that the umbilical power cable is properly connected, ensuring the alignment groove is correctly positioned before tightening the screw-threaded connect...
Connect signal cables first, then insert the power cord.
Button to turn the amplifier on and off.
Selects between standard, 4.4mm, and 4-pin XLR headphone outputs.
Selects impedance matched output for headphones (L, M, H).
Used to control the audio volume level.
Connect a balanced audio source via XLR connectors.
Connect a single-ended audio source via RCA connectors.
Contains the external fuse for high voltage circuits.
Connects the amplifier to the AC power supply.
Identifies the RCA 22DE4 vacuum tube location (V5).
Identifies the JJ 12AU7/ECC82 vacuum tube locations (V1, V2).
Identifies the JJ 6V6 vacuum tube locations (V3, V4).
How to connect single-ended headphones using 6.35mm jack.
How to connect 4.4mm balanced headphones.
How to connect 4-pin XLR balanced headphones.
Explanation of impedance output settings for various headphones.
Instructions for installing 9-pin vacuum tubes.
Instructions for installing 8-pin vacuum tubes.
Instructions for installing 4-pin vacuum tubes.
Instructions for installing big 4-pin vacuum tubes.
General| Input Impedance | 100kΩ |
|---|---|
| Model | HA-3A |
| Power Consumption | 60W |
| Inputs | RCA, XLR |
| Type | Tube Headphone Amplifier |
| Power Output | 2W |
| Frequency Response | 10Hz - 50kHz |
| Total Harmonic Distortion | <0.1% |
| Output Impedance | 8-600Ω |
| Tubes | 2 x 12AU7 |
| Vacuum Tubes | 2 x 12AU7 |
| Headphone Impedance | 8-600Ω |
| THD | <0.1% |
| Outputs | 6.35mm headphone jack |
| Power Supply | AC 220-240V, 50/60Hz |
| S/N | 92dB |
| Signal-to-Noise Ratio | 92dB |
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