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Monolith THX AAA Balanced Headphone Amplifier Featuring THX AAA 887 Technology, Balanced and Single-Ended Inputs

4.3 4.3 out of 5 stars 64 ratings

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Compatible Devices Headphone
Specific Uses For Product Amplifier
Connector Type 4-Pin Mini DIN
Color Black
Item Dimensions LxWxH 15.6 x 11.9 x 3.5 inches

About this item

  • The THX Achromatic Audio Amplifier (THX AAA) ensures the ultimate no compromise headphone audio experience by delivering the fidelity audio with infinitesimally low levels of noise, distortion, and power consumption.
  • Three gain settings: The amplifier features three different gain settings for optimal compatibility with all headphones. The lowest gain setting is the most appropriate for sensitive IEMs.
  • Balanced and single-ended inputs: The amplifier features an XLR balanced input, plus 1/4in and 3.5mm single ended inputs to eliminate the need for adapters.
  • High grade CNC-milled aluminum with black anodized finish chassis material.
  • 50 kilohms input impedance.
  • Connector type: 4-Pin Mini DIN
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Product Description

The THX Achromatic Audio Amplifier (THX AAA) ensures the ultimate no compromise headphone audio experience by delivering the world's highest fidelity audio with infinitesimally low levels of noise and distortion. Use three different gain settings for optimal listening with sensitive IEMs and headphones. Capable of powering even the most demanding headphone, the Monolith by Monoprice THX AAA Balanced Headphone Amplifier featuring THX AAA 887 Technology delivers an audio experience like no other.


From the manufacturer

THX AAA Balanced Headphone Amplifier featuring THX AAA 887 Technology low levels of noise distortion
THX Achromatic Audio Amplifier THX AAA ensures the ultimate no compromise headphone audio experience
three gain settings for optimal compatibility with all heaphones balanced and single ended inputs
Balanced: 20Hz ~ 20kHz +0.01dB/-0.03dB Single-Ended: 10Hz ~ 50kHz +0.05dB/-0.15dB Frequency Response

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Monolith

Monolith THX AAA Balanced Headphone Amplifier Featuring THX AAA 887 Technology, Balanced and Single-Ended Inputs


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Customer reviews

4.3 out of 5 stars
4.3 out of 5
64 global ratings

Customers say

Customers like the sound quality, clarity, performance, value, and quality of the electronic adapter. They mention that it makes their headphones SING, it has a noticeable step up in sound and tonal balance, and that it does not grate their ears with sharp treble detail. They also appreciate the build quality, saying that it's very solid and feels high quality.

AI-generated from the text of customer reviews

12 customers mention9 positive3 negative

Customers like the sound quality of the adapter. They say it has a mesmerizing sound, a noticeable step up in sound and tonal balance, crisp mids, tight bass, and detailed sound stages. Customers also say it makes their headphones sing with musical warmth. They mention that there is absolutely zero background hum or noise when there's no signal or sound.

"...This pairing is surprisingly great. You're getting soundstage, punchy dynamics, and warmth from the DAC into an excellent measuring, clean/detailed-..." Read more

"Everything I have thrown at it sounds so much better. Crisp mids and tight bass. Highs are not bad either. Not sure what the THX deal is?..." Read more

"...to Bach's chaconne through my Senn HD 660S's right now, and the sound is mesmerizing...." Read more

"...what sound quality wise it's sweet thank you for this product it does sound great guys if you can get your hands on one so as I'm learning more..." Read more

6 customers mention6 positive0 negative

Customers are impressed with the clarity of the adapter. They say it is stunning, crisp, and clear, with a clean detailed presentation. They also appreciate the tight bass and highs, saying it does not grate their ears with sharp treble detail. Overall, customers are happy with the transparency, neutral, and powerful sound of the product.

"...I liked the 789 for orchestral music especially due to its clean detailed presentation, but it sounded harsh in the highs to my ears, even paired..." Read more

"Everything I have thrown at it sounds so much better. Crisp mids and tight bass. Highs are not bad either. Not sure what the THX deal is?..." Read more

"...on one so as I'm learning more about this headphone amp is very sweet very clear and detailed sound stages good depth of field is good just sounds..." Read more

"This is the least distorted, most transparent, neutral, and powerful sound you can find in a headphone amp..." Read more

5 customers mention5 positive0 negative

Customers are satisfied with the performance of the adapter. They mention it's excellent, has unimpeachable performance, and has worked flawlessly.

"...It has worked flawlessly since I purchased it 3 months ago. I use it around 1 to 2 hours 5 days a week...." Read more

"It simply is awesome!..." Read more

"Superb value, unimpeachable performance..." Read more

"The sound quality of this is actually pretty surprisingly good..." Read more

5 customers mention5 positive0 negative

Customers appreciate the value of the adapter. They mention it's superb, solid, and sounds good for the price.

"...You get what you pay for and this amp is a great value and an upgrade to the 789, which is also a great value in its own right being at a lower cost..." Read more

"...after some time the warmth took a slight back seat, sound real good for the price. However my FiiO M15 sounds better." Read more

"At the current price, this headphone amp is a solid value...." Read more

"...It has no competition. It is the best. It doesn't cost much. It should last a lifetime." Read more

4 customers mention4 positive0 negative

Customers are satisfied with the quality of the adapter. They mention that the build quality is very solid, the knobs feel high quality, and it should last a lifetime.

"...The sound quality is excellent. The build quality seems very solid...." Read more

"...Pleasnt unboxing experience that feels very sturdy, like a smooth light metal alloy." Read more

"...It has no competition. It is the best. It doesn't cost much. It should last a lifetime." Read more

"...I'd recommend this over the drop alternative as the build quality feels better and the warranty is much better from momoprice." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the power of the adapter. They mention that it has plenty of power, incredible sound, and drives all of them pretty good.

"...This amp drives all of them pretty good. I also have Topping D30/A30 Pro combo and Ifi Zen DAC v2 and Zen Can and couple of tube amps...." Read more

"...ESPECIALLY the Arya.Plenty of power, incredible sound.If you are debating on getting an amp, like I was, just get this...." Read more

"Powerful and high quality..." Read more

The sound quality of this is actually pretty surprisingly good
5 Stars
The sound quality of this is actually pretty surprisingly good
This product is surprisingly good the first one came DOA I was very upset and I wrote a bad review but it looked like Amazon ever posted it but I'm very pleased with that the only upgrades that I could say I wish they would have done a better job with the power switch and the switch for the bypass what sound quality wise it's sweet thank you for this product it does sound great guys if you can get your hands on one so as I'm learning more about this headphone amp is very sweet very clear and detailed sound stages good depth of field is good just sounds different I've owned quite a few headphone amps and this one sounds different and I really like it buy one if you can still get one thank you guys for building such a nice Headphone amp
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Reviewed in the United States on October 10, 2023
2 people found this helpful
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Reviewed in the United States on December 15, 2022
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Reviewed in the United States on May 13, 2022
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Reviewed in the United States on August 15, 2021
Customer image
5.0 out of 5 stars The sound quality of this is actually pretty surprisingly good
Reviewed in the United States on August 15, 2021
This product is surprisingly good the first one came DOA I was very upset and I wrote a bad review but it looked like Amazon ever posted it but I'm very pleased with that the only upgrades that I could say I wish they would have done a better job with the power switch and the switch for the bypass what sound quality wise it's sweet thank you for this product it does sound great guys if you can get your hands on one so as I'm learning more about this headphone amp is very sweet very clear and detailed sound stages good depth of field is good just sounds different I've owned quite a few headphone amps and this one sounds different and I really like it buy one if you can still get one thank you guys for building such a nice Headphone amp
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2 people found this helpful
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Reviewed in the United States on December 22, 2022
2 people found this helpful
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Reviewed in the United States on February 4, 2021
3 people found this helpful
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Reviewed in the United States on June 18, 2023
Reviewed in the United States on February 16, 2021
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Dancp
4.0 out of 5 stars Gran sonido pero inestable
Reviewed in Mexico on September 28, 2021
One person found this helpful
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zam78
4.0 out of 5 stars Fait le Job
Reviewed in Canada on March 4, 2021
2 people found this helpful
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