Enleum HPA-23rm Headphone Amplifier
Best portable amplifier for audiophiles seeking uncompromising reference-grade sound quality.
Experience reference-quality audio with the Enleum HPA-23rm Headphone Amplifier, designed for both desktop and portable use. It features Enleum's cutting-edge technologies, combining dual amplifier circuits for voltage and current outputs to accommodate a wide range of headphones and IEMs. The innovative Ensence module, a discrete transistor circuit with zero negative feedback, ensures lossless variable gain and an ultra-wide, ultra-fast frequency response. Its hybrid amplifier design uniquely employs MOSFETs for voltage output and bipolar transistors for current output, delivering rich, detailed sound. Advanced battery power and thermal management provide extended playback times.
$2999.00
Owner Satisfaction
4.5
/ 5
Category Rank
410
/ 807
#410 in Headphone Amplifiers
Price vs Category Average
+115%
Above average
Power
150030
/ Watt (Current Output) / mWatts (Voltage Output) @ ohms
Who it's for
- Audiophiles seeking absolute transparency and natural musical detail
- Collectors owning diverse headphones from sensitive IEMs to planar magnetics
- Design-conscious listeners who value premium, minimalist build quality
Who should skip it
- Budget-focused buyers looking for entry-level or mid-range audio solutions
- Shoppers preferring widely available brands with accessible local support
- Listeners wanting a simple, plug-and-play setup without complex component matching
Performance breakdown
Sonic Transparency
Zero negative feedback design delivers an exceptionally pure and uncolored signal.
Drive Versatility
Hybrid output stages effortlessly handle both sensitive IEMs and demanding headphones.
Build Integrity
Precision-engineered aluminum chassis offers professional-grade durability and thermal efficiency.
Gain Precision
Lossless variable gain control ensures perfect channel balance at any volume.
Portable Endurance
Battery life is sufficient for sessions but requires frequent recharging.
Connectivity Scope
Analog-only inputs limit integration with modern digital-first desktop setups.
Key Specs
Power
1 Watt (Current Output) / 500 mWatts (Voltage Output) @ 30ohms
Plug Compatibility
US/Canada/Japan
Input
RCA and 1/8" Mini Jack (Analog)
Output
1/4" (Current Output) and 1/8" (Voltage Output) Headphone Jacks
Operation Time
Up to 5 hours (Voltage Output) / Up to 3 hours (Current Output) / Continuous with USB-C charger or battery pack
Dimensions
116 mm x 164.5 mm x 2 mm (W x D x H)
Weight (Net)
730g
Amplifier Type
Solid-state
Features
- Reference-level audio performance for audiophile-grade sound.
- Innovative Ensence module for lossless gain control and zero negative feedback.
- Hybrid amplifier design with dual MOSFET and bipolar transistor output circuits.
- Advanced battery power supply and thermal management for extended use.
- Precision-engineered minimalist aluminum chassis with integrated heatsinks.
- Solid-state relay attenuator for optimal channel balance and clarity.
- Versatile compatibility with high-impedance and low-impedance headphones.
What customers say
Customers consistently praise the Enleum HPA 23rm Headphone Amplifier for its exceptional sound quality and sophisticated, minimalist design. Reviewers frequently highlight the amplifier's ability to deliver a remarkably clear, detailed, and engaging audio experience, elevating their listening sessions. Its elegant aesthetic and premium build materials also receive significant appreciation, contributing to a sense of luxury and refined craftsmanship. While a premium investment, the consensus points to a product that delivers an unparalleled sonic performance and a visually appealing presence, making it a standout choice for discerning audiophiles.
Know before you buy
Yes. The amplifier features dual output circuits—a voltage output for standard headphones and a current output for more demanding loads—ensuring it performs optimally across a wide range of impedance levels.
By eliminating negative feedback, the Ensence module prevents the phase distortion and timing errors often found in traditional designs. This results in a more natural, transparent, and immediate sound signature.
It is designed for both. While it features a battery for portable use, its robust aluminum chassis and reference-level performance make it equally suitable as the centerpiece of a high-end desktop system.
Yes. You can power the unit continuously using a USB-C charger or an external battery pack, allowing for extended listening sessions beyond the internal battery's capacity.
The 1/4" jack is connected to the current output circuit, which is ideal for driving high-performance headphones, while the 1/8" jack utilizes the voltage output circuit, which is better suited for standard headphones and sensitive IEMs.
Unlike traditional potentiometers that can degrade over time or cause channel imbalance at low volumes, the solid-state relay attenuator ensures perfect channel matching and signal purity across the entire volume range.
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