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Little Labs Monotor 2-channel Headphone Amplifier - Limited-edition Black , $580.00 - Add to Cart Skip to Product Information

Little Labs Monotor 2-channel Headphone Amplifier - Limited-edition Black

Headphone Amplifier with Audiophile Circuit Topology, Separately Amplified Dual 1/4" and 1/8" Headphone Jacks, XLR/TRS Combo Jack Inputs, and Stereo Mini Aux Input - Limited-edition Black
Little Labs Monotor 2-channel Headphone Amplifier - Limited-edition Black
Little Labs Monotor 2-channel Headphone Amplifier - Limited-edition Black

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Only 2 left in stock! Order Soon!
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Little Labs Monotor 2-channel Headphone Amplifier - Limited-edition Black
In Stock!

Only 2 left in stock! Order Soon!

Pure Sound for Your Headphones

This article was Written By

Our Product Research Team

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With more and more music consumed via headphones and earbuds, you need a headphone amp that can keep up. Enter the Little Labs Monotor. This handy 2-channel headphone amplifier has garnered many fans here at Sweetwater due to its low-noise circuit design. Its signal path is almost completely passive and minimalistic, with the exception of a single active stage on each channel. The simplified design and high-quality voltage regulation guarantee the Monotor accurately reproduces any audio signal you throw at it. You get two 1/4-inch headphone jacks and a pair of separately amplified 3.5mm headphone jacks, so you never have to find a missing headphone adapter. Adjusting the volume is easy, too, thanks to the stepped volume knob. Finally, this headphone amp includes left-plus-right, left, right, and left-minus-right settings for checking phase and analyzing artifacts. Order yours now and hear every bit of audio through your headphones.

Low-noise, high-headroom circuitry

Put simply, the Monotor’s circuit topology is a stroke of genius. This headphone amplifier uses a minimalistic circuit design to prevent extraneous noise from entering the signal. The circuit uses a single active stage per headphone output. Otherwise, the circuit is entirely passive and clean, thanks to low-noise linear voltage regulation. The Monotor gives you a dramatically improved dynamic range without the hiss supplied by other headphone amplifiers. Choose a Monotor headphone amplifier and enjoy a more accurate sonic presentation of your source material.

No more annoying adapters

There are few things more annoying than needing a headphone adapter and not having one. That’s why the folks at Little Labs outfitted the Monotor with two pairs of headphone outputs. You get two traditional 1/4-inch TRS headphone jacks and two 3.5mm headphone jacks — all mounted to the front panel. The 1/4-inch and 3.5mm jacks are separately amplified for a cleaner signal. You can use any combination of headphones with the Monotor. And the best thing? You’ll never have to go digging for a headphone adapter ever again.

Little Labs Monotor 2-channel Headphone Amplifier Features:

  • 2-channel headphone amplifier for discerning listeners
  • Minimalistic circuit design gives you a precise, reliable, and high-fidelity sound
  • Flexible inputs let you connect the headphone amp to any setup
  • Extensive monitoring options are ideal for checking stereo cohesion, phase issues, or artifacts from digitally compressed files
  • Stereo/mono function switch lets you listen in any way you like
  • Separately amplified 1/4-inch and 3.5mm jacks supply exceptional sound for all headphones
  • Stepped volume attenuator offers repeatable settings
  • Compact chassis saves space in the studio
  • Bypassable volume knob offers easy remote control

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

Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.