HSCLPM HA400 4-Channel Metal Stereo Headphone Amplifier (HA400d1)
Quick take
The HSCLPM HA400 is a compact 4-channel headphone amplifier designed to power up to four headphone pairs at once, with independent volume control for shared monitoring. It is a practical pick for home studios, recording sessions, and small stage setups where multiple people need headphones without passing around a single amp. The biggest buying caveat is that the headphone outputs use 1/4-inch (6.35 mm) jacks, so many 3.5 mm users will need adapters.
Pros and cons
Pros
- 4 independent stereo channels for multi-person monitoring
- Compact, metal enclosure that buyers describe as solid
- Low-noise performance reported by users, including “no hiss” feedback
- Independent volume control makes it easier to dial in each listener’s level
Cons
- Headphone outputs are 1/4-inch (6.35 mm), which may require 3.5 mm adapter cables
- Some buyers wish there were a dedicated power button
- Review feedback is limited overall, so real-world performance themes are based on a small number of reports
What buyers think
Buyer-review evidence for the HSCLPM HA400 is relatively limited, but the recurring themes are clear. Multiple users describe it as working as expected and easy to set up, with a straightforward plug-and-play experience. Several reports call out clean output, specifically mentioning no noticeable hiss, and they also praise strong volume for headphone listening and monitoring. Build quality comes up often, with comments that the knobs and overall unit feel more substantial than you might expect at its price point. The main “watch this” theme is the connection type, since the headphone outputs use 6.35 mm (1/4-inch) jacks rather than 3.5 mm, and shoppers may need additional adapters depending on their headphones.
Who this headphone amplifier is for
This is best when you want to distribute one monitoring mix to multiple people and let each listener set their own volume. The 4-channel layout is especially useful for:
- Recording and mixing sessions where you have more than one set of headphones in use.
- Stage and rehearsal setups that need quick, compact monitoring for band members.
- Home studios where you want a dedicated headphone distribution box instead of swapping cables.
What it does well (practical performance expectations)
Independent volume control for up to four headphone pairs
The HA400’s core value is that each channel includes its own level adjustment.
Low-noise monitoring feedback
Several buyers specifically mention low noise, including “no hiss.” While real results vary by source and headphones, these reports suggest the HA400 is built to be suitable for monitoring without adding an obvious background noise floor.
Compact and portable for studio and stage use
At roughly 4.07 x 1.18 x 2.24 inches and built with a metal enclosure, it is designed to be easy to move between a home setup and a rehearsal space or gig bag. Users also describe the unit as solid and reliable in day-to-day use.
Where buyers may get tripped up
Headphone connections are 1/4-inch (6.35 mm)
The headphone jack type is 6.35 mm (1/4-inch). If your headphones use 3.5 mm plugs, you will likely need a few 3.5 mm to 1/4-inch adapters (or adapter cables) to connect everything comfortably.
No dedicated power button (small but real convenience factor)
Some buyers mention they wish it had a dedicated power button. If you are the type who prefers to power-cycle devices with a front-panel switch, this is worth keeping in mind.
Key specifications that affect compatibility
- Channels: 4 stereo channels (up to four headphone outputs at once)
- Output connector: 6.35 mm (1/4-inch) headphone jack
- Frequency range: 20 Hz to 20,000 Hz
- Impedance listed: 100 ohms
- Power: includes a DC 12V power adapter
- Construction: metal enclosure
If you are choosing headphones for monitoring, make sure your headphone connectors match the 6.35 mm outputs, and consider impedance needs based on your headphone model.
Simple buying checklist
- Do you need 4 headphone outputs? If you often monitor with multiple people, the 4-channel design is the point.
- What plug type do your headphones use? Confirm 1/4-inch compatibility, or plan adapters if you have 3.5 mm headphones.
- Do you want independent levels? If you have different listener preferences, independent volume control is a big convenience.
- Will this be used on stage or moved often? The compact metal design is aligned with portable setups.
Alternatives to consider
If you do not specifically need four separate headphone outs, you may save money or simplify cabling with other types of headphone amplification or distribution solutions. Consider:
- Single or dual headphone amps if only one or two listeners typically need monitoring, and you want fewer cables to manage.
- Different connection-type headphone splitters if your headphones are mostly 3.5 mm and you want to avoid adapters.
- Audio interfaces with multiple headphone outs if you want monitoring built into your recording setup (but only if your interface already supports the output count and independent volume needs you require).
Verdict
The HSCLPM HA400 is a strong budget-friendly option for shared headphone monitoring, especially in home studios and small stage environments. Buyers tend to like the clean, low-noise behavior, the solid feel, and the convenience of independent volume control across four channels. Just make sure your headphone plugs fit the 1/4-inch outputs, and decide whether you can live without a dedicated power button for day-to-day operation.
FAQ
Frequently asked questions
Yes. It is designed as a 4-channel headphone amplifier/distribution unit, with separate outputs intended to power multiple headphone pairs simultaneously.
The headphone outputs use 6.35 mm (1/4-inch) jacks. If your headphones are 3.5 mm, you will likely need 3.5 mm to 1/4-inch adapters or adapter cables.
Buyer reports commonly mention low noise and include “no hiss” feedback. Actual results can vary depending on your source and headphone setup, but the available review themes are positive on noise.
Reviewers describe it as plug-and-play and straightforward to use, which makes it suitable for both beginners and people who want a simple monitoring solution.
Yes, it comes with a DC 12V power adapter.
If you only need one or two listeners, you may find simpler options elsewhere. The HA400 is most compelling when you regularly need four separate headphone outputs with independent volume control.
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Specifications
| Product Title | Headphone Amplifier, HA400 4-Channel Metal Stereo Audio Amplifier, Mini Earphone Splitter with DC 12V Power Adapter, HA400d1 for Sound Mixer PC Guitar Studio Stage |
|---|---|
| Category | Electronics > Headphones, Earbuds & Accessories > Amplifiers |
| Brand | HSCLPM |
| Manufacturer | HSCLPM |
| Model Name | HA-4000 Headphone Amplifier |
| Model Number | HA-4000 |
| Form Factor | In Ear, On Ear, Over Ear |
| Connectivity Technology | Wired |
| Noise Control | Hybrid Noise Cancellation |
| Color | Classic Black |
| Brand Name | HSCLPM |
| Built-In Media | DC 12V Power Adapter |
| Age Range Description | Adult |
| Warranty Description | 1-Year Warranty |
| Customer Package Type | color box |
| Number of Items | 1 |
| Style Name | HA400 |
| Theme | TV Series |
| Unit Count | 1.0 Count |
| Impedance | 100 Ohms |
| Frequency Range | 20 Hz - 20,000 Hz |
| Enclosure Material | Metal |
| Specific Uses For Product | Studio |
| Compatible Devices | Music Production Equipment |
| Additional Features | Noise Reduction, High Power Amplifier |
| Headphone Jack | 6.35 mm Jack |
| Headphones Ear Placement | On Ear |
Available variants
Style
- HA400 PRO
- HA400
- HA400 + TRS
- HA400 Gray
- HA400 White
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