HELM DB12 AAAMP Mobile Headphone Amplifier, THX AAA Technology, Analog Amplifier, THX Certified, Audio

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Sale price$142.99 Regular price$179.99
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  • Condition: New
    This product is brand new with a full manufacturer warranty
  • Warranty: 90 Day Manufacturer Warranty


HELM DB12 AAAMP Mobile Headphone Amplifier, THX AAA Technology, Analog Amplifier, 12 dB Signal Boost, +6 dB Bass Boost, THX Certified, Male 3.5mm to Female 3.5mm Audio


The world’s smallest in-line amplifier for studio quality amplification anywhere you go. Made in collaboration with THX, this feature-loaded amp takes AAA™ to new heights with a host of additional features, including USB charging, onboard volume controls, a clean 12-decibel gain boost for power-hungry headphones like planar magnetic or high-impedance types, plus an independent 6-decibel bass boost. Game changing sound for watching movies, videos, gaming and yes of course your music. Helm DB12 amplify more than music, there is nothing like it


  • Immersive Audio On The Go - Music, Movies & Gaming. Your Wired Headphones Never Sounded So Good
  • Studio Grade Amplifier with Bass Boost Powered by the Award Winning THX® AAA™ Amplifier Technology - Boost the Sound from your Mobile or Gaming Device to Your Headphones
  • Game Changing Sound Anywhere You Go! Your Music, Movies, Youtube Videos, Twitch Streams and Gaming
  • World's First AAA ™ In-Line Audiophile Quality Headphone Amplifier That Fits In The Palm of Your Hand and a Separate Bass Boost Feature
  • Delivers Maximum Volume +12dB with No Distortion, Greatly Improving Sound Quality and an Independently Controlled Bass Boost +6dB
  • Plug & Play - No Additional Components or Connections
  • Award Winning THX AAA Lowest Distortion Amplifier

Studio Amplification & Bass On Any Headphone On Any Device

Winner of an “Innovation Award at CES 2020,” the HELM Audio DB12 AAAMP takes the power it saves with efficient AAA™ technology and uses it to deliver a rich, “unmasked” stereo field with amazing detail. The groundbreaking DB12 is simple, the plug & play in-line amplifier delivers maximum volume, improved sound quality, and bass enhancement to any headphone on any mobile device.

Powered By Thx’s Achromatic Audio Amplifier

THX’s AAA™ amplifier ensures the ultimate no-compromise headphone audio experience by delivering the world's highest fidelity audio with the world’s lowest distortion amp w/ true linear amplification (Linear means as the volume increases you maintain your pristine sound quality at all levels). **THX Certified

Breathe New Life In To Your Favorite Headphones From Any Mobile Device

More than enough power to make your headphones scream from your favorite mobile device. Studio sound anywhere you go with an unmatched portable 12 dB of flawless linear volume gain and independently controlled 6 dB of massive bass boost, your headphones have never sounded so good.


Brand HELM Audio
Feature THX Certified
Amplifier THX’s AAA™ amplifier
Material Aluminum
Input Stereo TRRS 3.5 mm male connector
Output Stereo TRRS 3.5 mm female connector
Frequency response +0.01 / -0.2 dB 20 Hz – 20 kHz with 32 ohm load
Output impedance <0.4 ohms
Output power 109 mW at 16 ohms with <0.1% THD (watts per channel,) 111 mW at 32 ohms with <0.1% THD (watts per channel)
Output impedance < 0.4 ohms
THD -102 dB, 16 ohms, 10 mW: 0.0008%
THD -102 dB, 32 ohms, 5 mW: 0.0008%
THD -109 dB, 10 Kohms, 0.049 mW: 0.00035%
IMD -70 dB, SMPTE 70 Hz + 70 kHz, 16 ohms: 0.03%
IMD -80 dB, SMPTE 70 Hz + 70 kHz, 32 ohms: 0.01%
IMD -80 dB, SMPTE 70 Hz + 70 kHz, 10K ohms: 0.01%
Crosstalk – 91 dB, 10K ohms: 0.0028184 %
Noise (A-wt) 10 uV, potentiometer at nil
SNR 114 dB, 300 ohms, <1% THD
Gain +12 dB (full range), +12 dB and +6 dB on 60–100 Hz frequencies (Bass Boost)
Power supply Internal USB rechargeable battery
Battery life 6+ hours in use
Weight 1.08 oz (30.55 g)
Product Dimensions 2.75 x 0.57 x 0.88 inches
Item Weight 1.1 ounces


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