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Union Audio lisann HD Amplifier Headphone Amp Certified Open Box

Portable Headphone Amplifier with Class AB Power Amp, USB-Audio Subsystem, 96kHz/24-bit DAC, USB Recording, 2 x Headphone Out (3.5mm, 1/4"), Optical Digital Audio In, 3-pin XLR Stereo Input Pair, USB-C, Universal Voltage Adapter, and Rechargeable Battery
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Item ID: LisannHDAmpd1
Union Audio lisann HD Amplifier Headphone Amp
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Certified Open Box Savings!

Save $89.85 What is Certified Open Box?

The price below reflects your savings.

Price:$509 and 15 cents
Savings: $89.85

New for $599.00

Condition Notes:

This item is in good condition and perfect working order. Product includes all original accessories. This item ships in its original factory packaging.

This item was thoroughly inspected by our factory-authorized service team and is backed by Sweetwater's exclusive 2-year warranty. The images shown do not necessarily represent the condition of this particular item.

! 1 person has this Certified Open Box item in their cart. Order now before it's gone!

Special Financing - Ends Aug 2, 2026. $15/month with 36 month financing*

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Elevated, Audiophile-grade Listening — Anywhere

Union Audio’s dedication to uncompromising aural fidelity is integral to its design philosophy, imbuing listening experiences with unrivaled performance and clarity. The company’s lisann HD Amplifier brings this multifaceted technical prowess to the world of headphone amps, blending portability, power, and premier playback. Its robust chassis houses a formidable, semi-discrete AB power amplifier that drives its dyad of 3.5-millimeter and 1/4-inch headphone outputs, capable of levels up to 750mW RMS into 33 ohms, as well as +20dBu for high-impedance headphones, courtesy of the onboard, 30-volt internal power rails. Accommodating connectivity comprises a stereo pair of 3-pin XLR analog inputs alongside a digital optical input and USB-C port. Union Audio crafted the lisann with blazing 96kHz/24-bit D/A converters from AKM, allowing you to stream digital audio at immense speeds while preserving every detail and nuance of your favorite tracks. Sweetwater’s audio experts are exceptionally impressed by the headphone amp’s USB audio subsystem, seamlessly facilitating hi-fi recording from digital or analogue input sources to USB devices. Furthermore, a carefully selected nickel metal hydride (NiMH) rechargeable battery provides up to 12 hours of unwavering power and clarity on a single charge, painlessly refueled by the Union Audio-provided universal voltage adapter.

Union Audio lisann HD Amplifier Features:

  • Versatile headphone amplifier provides potent portability with unwavering hi-fi playback
  • AKM-provided D/A converters support digital audio streaming up to 96kHz/24-bit for crystal-clear listening that preserves nuances and dynamics with ease
  • 3-pin XLR stereo input pair means comprehensive analog audio enjoyment across a 15Hz–60kHz analog frequency response range, guaranteeing complete sonic preservation
  • Dual headphone outputs (3.5mm and 1/4-inch) accommodate multitudes of listening environments at levels up to 750mW RMS into 33 ohms and +20dBu with high-impedance headphones
  • Optical digital audio input and USB-C port expand listening and streaming options without sacrificing sonic preservation during audio conversion
  • Dedicated USB subsystem supports USB audio playback and recording from virtually any source
  • Rechargeable NiMH batteries provide up to 12 hours of compromising performance
  • Included universal voltage adapter means peace of mind for listening and recharging anywhere
What is Certified Open Box Gear?

At Sweetwater, we're so picky that what we call "Certified Open Box" is actually better than what most music retailers sell as "new" gear! Our gear hasn't endured hundreds of people a week plunking away at all the keyboards, fumbling through Stairway to Heaven on every guitar or playing with every fader and knob on a mixer or control surface.

Certified Open Box (also known as a demo) means we’ve had it out of the box for our YouTube channel, displayed at events, tested in our studio, or maybe it was in a customer’s hands for a few days and isn’t ‘factory fresh’ as a result. Every Certified Open Box item we sell has Sweetwater’s 2-year Total Confidence Coverage™ warranty and has been tested and verified up to ‘new’ specs by our factory-authorized technicians to make sure it’s in perfect working order before we ship it to you.

When you buy a Certified Open Box item at Sweetwater, you get:
  • 2-year Total Confidence Coverage Warranty™!
  • Products inspected and tested by our factory-authorized techs, guaranteed to function like new (or better)!
  • FREE shipping on most items
  • Equipment that will MEET or EXCEED your expectations!

Click HERE to browse our current inventory of Certified Open Box equipment. Purchasing Certified Open Box gear from Sweetwater is a smart and safe way to save!

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

Extra peace of mind at no extra cost.

  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
  • Fix it the first time with our award-winning, factory-certified Service Department
Learn More about Total Confidence Coverage
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Tech Specs

  • Type: Headphone Amp
  • Analog Inputs: 2 x XLR
  • Headphones: 1 x 1/4", 1 x 1/8"
  • Form Factor: Desktop
  • Power Supply: Rechargeable NiMh battery
  • Manufacturer Part Number: UA-LHA-BK-UNI

What Makes Our Sales Engineers Great?

Sweetwater Sales Engineers are a world-class team of experts dedicated to you. Hand selected from across the globe, each brings a wealth of experience and expertise in the world of music gear to provide you with unparalleled service completely free of charge. Friendly relationships, real trust, and the right gear are only a call or a click away!

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