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Monolith Desktop Headphone Amplifier and DAC with THX AAA Technology (Dual AKM 4493 DACs & Dual AAA-788 Modules)

4.6 out of 5 stars 191 ratings

  • The worlds most linear amp technology: the THX achromatic audio amplifire (THX AAA) ensures the ultimate no-compromise Headphone audio experience
  • True balanced operation: Each THX stereo amp module operates in a bridged configuration to maximize output power for each channel, each DAC operates in mono mode
  • Dual AKM 4493 DACs: new flagship 32-bit stereo premium DAC. It supports PCM inputs up to 768kHz and a direct stream digital input of 2. 8/5. 6/11. 2 MHz
  • Balanced & single ended Headphone output: Compatible with all headphones and items
  • Tailor your sound: Use the powerful digital tools to tailor the sound to your personal preference. Does your headphone have a little sibilance? Set a peq to tame that frequency peak

From the manufacturer

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Customer Rating 4.6 out of 5 stars (191) 4.4 out of 5 stars (59) 4.5 out of 5 stars (19) 4.2 out of 5 stars (8) 4.6 out of 5 stars (1502)
Price From $1,099.99 $297.32 $249.00 $200.00 $149.99
Sold By Available from these sellers Schiit Audio All About Office
Item Dimensions 7.8 x 2 x 8.7 inches 15.6 x 11.9 x 3.5 inches 9 x 6 x 1.5 inches 8.1 x 8.1 x 1.5 inches 4.72 x 1.97 x 5.12 inches

Product Description

The Monolith THX desktop headphone amplifier and DAC features cutting edge technology to bring out the best in your headphones, playback device, and music library. Featuring dual THX AAA 788 amplifier modules for best in class amplification, an AKM 4493 DAC for an exceptionally musical experience, and dirac sensaround II decoding for an out-of-your-heard, larger than life soundstage, The Monolith amplifier is engineered for the finest in music reproduction. A host of inputs and outputs, including balanced, unbalanced, and digital, ensures that you have plenty of ways to connect your audio devices. RCA Input Impedance: 10 kilohms.

Product information


Monolith Desktop Headphone Amplifier and DAC with THX AAA Technology (Dual AKM 4493 DACs & Dual AAA-788 Modules)

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Customer reviews

4.6 out of 5 stars
4.6 out of 5
191 global ratings

Top reviews from the United States

Reviewed in the United States 🇺🇸 on September 27, 2019
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5.0 out of 5 stars Amazing amp, amazing dac, not perfect but who cares.
Reviewed in the United States 🇺🇸 on September 27, 2019
This isn't a perfect unit, it has flaws, namely the analog inputs are converted to digital then back to analog, so there really isn't a passthrough for just the amp (due to the EQ and DIRAC options). If you're a purist, then this is a pretty big red flag, but for the rest of us, it's really not that big of a deal, not even sure they've found change in the output after feeding analog into the device, so it's really only theory that the sound is altered by these 2 extra conversions, but if you have no plans to bypass the DAC, and instead are using it as both a dac and an amp, then there is no extra conversion happening, plus, the balanced dac in the unit is a very good dac, so just use it. The amp...well, it's basically a revolutionary technology developed by THX, and has the audiophile community losing their collective minds over these THX AAA amps. They truly are a wire with gain, the noise floor and THD are so ridiculously low, the power output so high, that you really shouldn't need another solid state amp after this. This may be the 788, inferior to the 789 in power output (not by much, I'm listening to it right now on 300 ohm sennheisers, and it gets loud enough to hurt, and still has a ton of headroom in the volume , like upwards of 40-50%, no chance I'm testing how high it goes, I'll blow the drivers for sure, I'm wincing at -17db, and I think it goes all the way to +16. No gain settings, which is a bit annoying, but whatever, however the biggest flaw of this unit by a long long ways, is the volume control. It is painfully slow, I'm really hoping they fix it in a firmware update, but I'm not holding my breath. Basically you have to spin the knob like 20 times to go down a significant amount, like from high listening volume, to hearing those around you when they're trying to get your attention. It's not really a big deal 90% of the time, once you are at a comfortable volume, minor changes are completely fine, you don't even notice it's slow, only when you need to change it more than like 10-15+ db at once, does it become an annoyance, overall though who cares, the flaws have no effect on the sound (unless you're trying to bypass the dac, in which case it might due to taking the analog signal from your exterior dac, converting it back to digital, and then back to analog, that is the only way you might hear any change in the audio caused by this amp. If you're using digital inputs, then you're golden, nothing but pure unadulterated source material is what you'll hear.

Buy this amp, new 887, 888, and 889 units aren't coming until late november/early december at the earliest, unless you want to pay $3,000 for the Benchmark that has a THX AAA 888 amp already. This amp though a few revisions old already, is still state of the art, industry changing, and the measured improvements are so small they aren't even audible to us, as the "inferior" amp is already producing audio that is 99.9999% to the source, at least. It simply doesn't get any cleaner.

Oh, and the value is insane, a balanced dac ($200 at least) and a THX AAA balanced amp ($400) for $500. It's a steal
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Reviewed in the United States 🇺🇸 on April 6, 2022
Reviewed in the United States 🇺🇸 on October 24, 2019
6 people found this helpful
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