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US$2,199 is a fair price for this Enleum HPA-23RM, sitting just above the median of US$2,010 from recent used listings. It is comfortably below the 75th percentile of US$2,810, so you aren’t paying an ambitious premium, and it’s well above the 25th percentile of US$1,790, meaning it’s not a bargain but a solid, market-aligned deal.
This battery-powered reference amp is beloved for delivering mains-powered, full-sized amp performance in a portable form, with dual voltage and current outputs (500 mW and 1 W @ 30 Ω) that excel with dynamic and planar headphones. Its clean, resolving sound and limited 250-unit production run add rarity value, and if this listing includes the original charger and accessories, it’s a timely buying opportunity for a well-regarded, hard-to-find unit at a fair price.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Enleum: A Korean High-End Audio Innovator
Enleum traces its roots to 2009, when Korean enthusiast Soo-In Chae began collaborating with Akira Nagai's firm to develop premium audio products for both domestic and global markets. The brand was formally launched under the Enleum name in 2021, marking a strategic rebranding of their legacy operations. The company name itself merges "Enlightenment" with "eum," the Korean word for sound—a philosophy that underpins their design ethos. Enleum Inc. now operates with a California headquarters overseeing global design and product strategy, establishing the brand as a distinctly Korean-Japanese venture with international reach.
The company specializes in high-end amplification, with their flagship AMP-23R solid-state amplifier serving as the cornerstone of their portfolio. They also manufacture the HPA-23RM headphone amplifier, positioning themselves as specialists in amplification rather than broad-spectrum audio manufacturers. Their products are characterized by meticulous attention to both sonic performance and industrial design, employing traditional Korean craftsmanship elements like hand-finished lacquer controls alongside modern engineering.
Enleum occupies a prestigious niche within the boutique high-end segment, distinguished by an unusual achievement: winning numerous design awards alongside accolades from audiophile publications worldwide. Their amplifiers have earned particular praise for delivering tube-like musicality from solid-state architecture—a hallmark of their design philosophy. The brand appeals to discerning audiophiles seeking compact, efficient amplification with refined aesthetics and proven sonic credentials, positioning them as a serious contender in the upper-tier audio market despite their relatively modest product lineup.
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