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At US$1,820, this Enleum HPA-23RM is a strong bargain, sitting just above the 25th percentile of US$1,790 and well below the median of US$2,010 from recent comparable listings. Given the original US retail price of US$3,000, you’re getting a reference-grade headphone amp for roughly 40% off new, which is an excellent entry point into this highly regarded model.
The HPA-23RM stands out for its dual-output architecture (voltage and current), delivering up to 500 mW and 1 W respectively at 30 Ω, making it versatile across demanding headphones. Its compact, portable form factor with RCA and mini-jack inputs pairs with a clean, resolving sound that avoids musical coloring. With only 250 units produced in 2022, finding one this far below median market value is a rare opportunity—especially if it includes original accessories and shows no signs of battery wear.
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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