Portable headphone amplifier promising clearer, louder playback for mid-to-high-impedance headphones. eSynic Portable Headphone Amplifier helps listeners enjoy balanced treble, natural mids and richer bass on the move. Is the compact amp the practical upgrade for commuting listeners and casual studio work?
⚡ At a Glance
- • Sound Signature: Balanced treble, natural mids and rich bass
- • Best for: Audiophiles and musicians who need portable, low-noise amplification
- • Not ideal for: Users who require wireless or integrated hands-free features
Compact rechargeable amplifier with two-stage gain, 3.5mm input and output and a 1200mAh battery. Designed to drive headphones in the 16–150Ω range with high SNR and very low THD for clean reproduction.
Greater Headphone Drive - with two-stage gain switch
Two-stage gain enhances the incoming signal into the amplifier circuit, with selectable gain levels for sensitive in-ear monitors or harder-to-drive over-ear headphones. The specification notes suitability for headphones rated between 16 and 150 ohms.
Higher usable volume without distortion for a wide range of headphones, making louder playback achievable on phones and portable players.
Cleaner, More Detailed Playback - with high SNR and very low THD
A signal-to-noise ratio above 100 dB and THD+N of 0.0003% indicate a very low noise floor and minimal harmonic distortion during amplification. Those measurements reduce background hiss and maintain tonal accuracy.
Quieter backgrounds and sharper stereo imaging help reveal subtle details during critical listening and casual enjoyment alike.
Portable, Uninterrupted Use - with 1200mAh rechargeable battery
A built-in 1200mAh lithium battery supports more than five hours of operation and charges by USB. User feedback confirms operation while charging, allowing continuous playback during long sessions.
Take the amplifier on commutes or sessions and keep listening for extended periods, with the option to charge and play at the same time.
✨ The 4 Key Reasons for eSynic Portable Headphone Amplifier
- Two-stage gain switch - Drive a wide impedance range with controlled volume boost
- High SNR and low THD - Deliver clear, low-noise playback revealing musical detail across volume levels
- Rechargeable 1200mAh battery - More than five hours portable listening with USB charging
- Aluminium matte casing - Reduce interference and resist wear for reliable performance
📋 Technical Details at a Glance
- Category: Wireless
- Connectivity: 3.5mm jack input and output, USB charging
- Compatible Impedance: 16–150Ω
- Battery: Rechargeable lithium battery
- Battery Capacity: 1200mAh
❓ Frequently Asked Questions
Q: Can the amplifier drive over-ear headphones?
A: Yes, it is designed for headphones rated between 16 and 150 ohms, with a two-stage gain switch to help drive higher-impedance pairs.
Q: How long does the battery last and how is it charged?
A: A built-in 1200mAh rechargeable lithium battery provides more than five hours of use and recharges via the supplied USB cable.
Q: Can the amplifier be used while charging?
A: User feedback indicates the amplifier operates while charging, allowing uninterrupted portable use.
🏆 Our Verdict
Well suited to audiophiles, commuters and session musicians who need compact, low-noise amplification for mid-to-high-impedance headphones. Strong signal handling, a two-stage gain switch and very low distortion deliver cleaner, louder playback without audible artefacts. Offers practical long-term value for listeners wanting a portable, rechargeable amp for phones and digital players.
