MONOLITH THX AAA-78 Portable Headphone Amplifier DAC AK4493 24bit 192kHz DSD128

MONOLITH THX AAA-78 Portable Headphone Amplifier DAC AK4493 24bit 192kHz DSD128
The Monolith THX AAA-78 is a portable headphone and DAC amplifier that incorporates high-performance technologies to give you exceptional headphone listening and allow you to make the most of your music library. Featuring a THX AAA-78 module for high-level amplification and extended battery life, an AKM AK4493 DAC for rich, accurate playback, and Dirac Sensaround II audio processing technology for enhanced sound quality.

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290,83 €tax excl.

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Shipping date: 25-01-2022.

Orders placed before 11AM (GMT+1) will generally be shipped the same day (working day).

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Monolith THX AAA-78

Portable Headphone Amplifier DAC AK4493 24bit 192kHz DSD128

Monolith THX AAA-78 Amplificateur Casque Portable DAC AK4493 32bit 384kHz

The Monolith THX AAA-78 is a portable headphone and DAC amplifier that incorporates high-performance technologies to give you exceptional headphone listening and allow you to make the most of your music library. Featuring a THX AAA-78 module for high-level amplification and extended battery life, an AKM AK4493 DAC for rich, accurate playback, and Dirac Sensaround II audio processing technology for enhanced sound quality, the Monolith THX AAA-78 is the perfect companion for the best audio playback from a smartphone or DAP.

Monolith THX AAA-78 Amplificateur Casque Portable DAC AK4493 32bit 384kHz

THX Amplifier

The THX Achromatic Audio Amplifier (THX AAA) technology provides uncompromising headphone amplification for an exceptional audio experience with extremely low noise and distortion, while maintaining very low power consumption.

AKM AK4493 DAC

The Monolith THX AAA-78 is equipped with an AKM AK4493 32bit digital/analog conversion chip. This DAC chip supports PCM streams up to 32bit 768kHz and up to DSD256. The internal circuitry also incorporates a 32bit digital filter to further improve the sound quality and musicality of the device.

The other components of the THX AAA-78 only support sample rates up to PCM 24bit 192kHz and DSD128 (via Micro USB).

Monolith THX AAA-78 Amplificateur Casque Portable DAC AK4493 32bit 384kHz
Monolith THX AAA-78 Amplificateur Casque Portable DAC AK4493 32bit 384kHz

Dirac Sensaround II

Music is often mixed for speakers, not headphones. The result is a headphone listening experience where the sound image seems distorted, as instruments and voices are not precisely placed and may appear muffled. Dirac Sensaround II technology creates a wide sound stage, offering clarity and immersive realism. Whether you're listening to music, watching a movie or playing a game, Dirac Sensaround II puts you at the heart of the sound experience.

Monolith THX AAA-78 Amplificateur Casque Portable DAC AK4493 32bit 384kHz

Connectivity

The Monolith THX AAA-78 benefits from a complete connection system with a Micro USB input and a 3.5mm Line / Optical Jack combo. The output is also on a 3.5mm jack connector, and the charge is on an independent Micro USB port.

Monolith THX AAA-78 Amplificateur Casque Portable DAC AK4493 32bit 384kHz
Monolith THX AAA-78 Amplificateur Casque Portable DAC AK4493 32bit 384kHz

Filters

The device also allows the use of filters to adapt the sound reproduction to your listening and your equipment. For example, if your headphones tend to emphasize some sibilance, the use of the PEQ filter allows you to attenuate the corresponding frequency peak. The Shelf EQ filter allows it to boost or cut off part of the high frequencies (HF) or low frequencies (LF).

The DAC's filter also allows you to change the low-pass filter (LPF) or adjust the slope of the high-frequency (HF) filter.

Dynamic range control

The DRC function allows the installation of Shelving Filters. The DRC starts with the high-pass and low-pass filters to separate the high and low frequencies (24dB/oct @ 140Hz), then two independent stereo compressors and a mixer to combine the high and low frequencies. The compression is not Soft Knee, but starts exactly above the threshold level, with no compression below the threshold. The LF offset simply adjusts the threshold level of the LF compressor, in accordance with the HF compressor (the threshold level of the LF compressor corresponds to the threshold level setting + the LF offset setting). The DRC block is located before the volume control. Therefore, the DRC threshold level refers to the level of the incoming signal. The attack time of the compressors is about 100ms.

Monolith THX AAA-78 Amplificateur Casque Portable DAC AK4493 32bit 384kHz

Technical characteristics

Specifications
Product typePortable headphone amplifier
DAC
Amplification chipTHX AAA-78
DAC chipAKM AK4493
Inputs1x Single-ended TRS Jack 3.5mm
1x Optical Jack 3.5mm
1x Micro USB
Outputs1x Jack 3.5mm
Frequency response1Hz - 20kHz ±0.5dB
SNR (A-Weighted)> 117dB
Dynamic range> 117dB
THD< 0.001%
Crosstalk< 100dB
Output power220mW @ 16Ω
340mW @ 32Ω
91mW @ 150Ω
46mW @ 300Ω
23mW @ 600Ω
Max output voltage3.7Vrms
Max Jack 3.5mm analog input voltage2Vrms
Jack 3.5mm analog input impedance10kΩ
Supported sampling ratesOptical: PCM up to 24bit 96kHz
USB : PCM up to 24bit 192kHz / DSD up to DSD128
Battery capacity4000mAh
General
Charge voltage5VDC 2A
Included power adapter voltage100-240VAC 50/60Hz
Dimensions137.2 x 71.1 x 15.2mm
Weight227g
Housing materialAluminium
ColorBlack
 
Data sheet
InputJack 3.5mm
OutputJack 3.5mm
DAC / ADC ChipAK4493EQ
Max sampling rateDSD128
Max sampling rate192kHz
ColorBlack
NetworkingNo
Remote ControlNo
 
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MONOLITH THX AAA-78 Portable Headphone Amplifier DAC AK4493 24bit 192kHz DSD128
The Monolith THX AAA-78 is a portable headphone and DAC amplifier that incorporates high-performance technologies to give you exceptional headphone...

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