AMP-54R Integrated Amplifier and MC Phono Preamp by Enleum (Open Box)

Purchase Date: Dec 2025
Condition: As-new, with no marks, scuffs, or visible signs of wear.
Shipping/Insurance: Included
Warranty: Full Manufacturer’s Warranty
Note: This was a review unit for Steve Huff… used for approximately 120 hours.

AMP-54R : NEXT GENERATION FLAGSHIP AMPLIFEIER

The AMP-54R is Enleum’s new statement product and flagship amplifier. Building upon the latest achievements and advancements made with the AMP-23R and HPA-23RM, we have employed our absolute best technologies and uncompromising designs in the AMP-54R, making it a statement product.

The AMP-54R is the direct successor to our legacy Bakoon AMP-51R, introduced in 2016 as a 100-watt amplifier featuring various novel ideas and engineering efforts. Since then, we have made significant technological advancements, including the development of the JET Bias, our proprietary software-controlled bias system.

This breakthrough has enabled us to design the AMP-54R with next-level performance, stability, efficiency, and most importantly, sound quality. Along with the latest circuits, we have also achieved significant breakthroughs in industrial design, improving aesthetics, precision, rigidity and overall build quality.

With these engineering efforts, the overall volume of the AMP-54R has been reduced to nearly half that of the previous flagship AMP-51R while maintaining the same output power. Additionally, the transformer power has increased by 25%, and the power supply capacitance has been doubled, now in a dual-mono configuration.

Thanks to the new JET3 Bias (which has evolved from the AMP-23R’s JET2 Bias), the new software algorithm now tracks and optimizes the output stage bias with more accuracy; resulting in improved performance and efficiency in any given condition. Furthermore, the increase in the output bias circuit’s stability translates directly to driving power, allowing the AMP-54R to drive a wider range of loudspeakers with ease.

The AMP-54R also incorporates a more advanced 32-bit CPU to run the latest, more sophisticated software architecture, enabling more accurate control of all circuits.

Enleum is proud to offer two optional modules for the first time in our amplifiers. The first module is our proprietary current input phono preamplifier stage, which maximizes the performance of MC cartridges by using current signals. The second module is a streaming DAC module with coaxial and optical inputs. These modules make the AMP-54R a complete all-in-one amplifier solution for the no-compromise minimalist high-end audio system.

The AMP-54R is meticulously assembled and tested by Enleum’s chief engineers either in Korea or California depending on the final delivery destination. The preliminary MSRP for the base AMP-54R, excluding the optional modules, is approximately $20,000, €25,000 (including EU VAT), and £25,000 (including UK VAT). Please note that the MSRP is subject to change upon the production release in Q3/Q4 2023.

The AMP-54R is Enleum’s most ambitious project to date, representing the pinnacle of our engineering and design expertise. Its unique and advanced technologies, combined with its award-winning “design perfection”, as recognized by design experts and juries, make the AMP-54R a true statement in the audio industry

Twittering Machines
“performance that is as transparent as I’ve heard in Barn while retaining music’s rich life blood down to the tiniest details”

https://twitteringmachines.com/review-enleum-amp-54r-integrated-amplifier

6 Moons
“Here’s what even I know. Enleum’s new best deserves to become a success. The lengthy genesis since first word of this slightly mad project circulated made the wait anticlimactic but worth it in the end. It’s a very special amp that looks for equally special admirers.”

https://6moons.com/audioreview_articles/enleum-54r

Part Time Audiophile
“Bakoon and Enleum for as long as designer and CEO Soo In Chae has been making these amazing little boxes. Yesterday’s announcement of the new flagship amp is exciting. We have no idea how they squeeze so much performance out of such an elegantly compact package, but we’re here for it.”

https://parttimeaudiophile.com/2023/05/17/enleum-amp-54r-munich-2023/

POWER (High Voltage Mode)  |  115 watts (8 Ω, 1 kHz) | 200 watts (4 Ω, 1 kHz)

POWER (High Current Mode)  |  50 watts (8 Ω, 1 kHz) | 100 watts (4 Ω, 1 kHz)

FREQUENCY RESPONSE  |  10 Hz ~ 100 kHz

INPUT IMPEDANCE  |  100 kΩ (Voltage) | 10 Ω (ENLINK) | 10 Ω (MC)

INPUT  |  2 Voltage (RCA) | 1 ENLINK (BNC) | 1 MC Current (RCA)

POWER CONSUMPTION  |  65 watts (Idle) | 800 watts (Max)

DIMENSIONS  |  400 mm (W) x 400 mm (D) x 70 mm (H)

WEIGHT  |  16.5 kg (net) | 24 kg (shipping)