Enleum HPA-23RM: Reference Headphone Amplifier
In stock
The HPA-23RM is designed for both high-end desktop and mobile usage. Every critical component and circuit of the HPA-23RM work in harmony to provide the utmost headphone listening experience. The HPA-23RM shares the same circuits with the award-winning AMP-23R. Yet the output stage design is new, incorporating ideas from the AMP-23R’s JET2 Bias circuit. It also employs the all new improved current output circuit from our legacy HPA-21.
The HPA-23RM is our reference dedicated headphone amplifier. It is designed for both high-end desktop usage and mobile usage – hence using “R” for reference and “M” for mobile in the product name.
The HPA-23RM contains two amplifiers in one package as it employs both voltage and current outputs. The voltage output circuit is directly inherited from the AMP-23R’s latest MOSFETs output stage with a simplified version of the JET2 Bias circuit. While its unique current output is a descendant of the HPA-21’s bipolar transistor based circuit, its modern design is even more refined with advanced technologies.
The HPA-23RM powers most headphones, but for slightly more demanding headphones, the HPA-23RMH offers 35% more output power.
Depending on which output and model used, the HPA-23RM(H) offers between 2.5 – 5 hours of playing time on the battery – or continuous play when connected to a power source.
VOLTAGE AND CURRENT OUTPUTS
The circuit employs all discrete transistors with zero negative feedback and features an ultra-fast and ultra-wide frequency response. All these advanced technologies are concentrated in the compact Ensence module, which takes an important role in the input stage of the amplifier. This allows our renowned lossless variable gain, so that one can fully enjoy the same performance at any gain or volume level.
ENSENCE MODULE
The HPA-23RM begins with the Ensence module exactly like the AMP-23R. The circuit employs all discrete transistors with zero negative feedback and features an ultra-fast and ultra-wide frequency response.
All these advanced technologies are concentrated in the compact Ensence module, which takes an important role in the input stage of the amplifier. This allows our renowned lossless variable gain, so that one can fully enjoy the same performance at any gain or volume level.
SOLID STATE RELAY ATTENUATOR
The HPA-23RM(H) employs advanced solid state relays in the attenuator circuit and it is proudly our first amplifier to enable more efficient and lower noise switching. The AMP-23R’s ultra precision resistor network is carried over and the same gain adjustment method and control software is applied for a wide range of headphones and IEMs sensitivities.
NO COMPROMISE DESIGN
The Enleum HPA-23RM(H) is a true feat of engineering and design. It offers our most powerful yet smallest high-end headphone amplifier in a uniquely designed casing. It has been created to provide no compromises and to support both desktop and portable listening for the discerning audiophile and design enthusiast. The clean design is enhanced by the minimalist user-interface, and it features Enleum’s renowned quality of design that make this amplifier a true work of art.
POWER Current: 1 W (HPA-23RM) or 1.35 W (HPA-23RMH) / Voltage: 500 mW @ 30ohms (HPA-23RM & HPA-23RMH)
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 (HPA-23RM & HPA-23RMH Voltage) / Up to 3.5 hours (HPA-23RM Current) / Up to 2.5 hours (HPA-23RM Current) / Continuous with USB C charger or battery pack
DIMENSIONS 116mm x 164.5mm x 22mm (w x d x h)
WEIGHT (NET) 750g
Enleum reserves the rights to change the preliminary specification, upon its initial production release.
