Monolith™ by Monoprice™
THX® AAA Balanced Headphone Amplifier
Featuring THX AAA 887 technology
The THX® Achromatic Audio Amplifier (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.
THX®
The World's Most Linear Amplifier Technology.
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, 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 1/4" and 3.5mm single ended inputs to eliminate the need for adapters.
| Model | 39359 |
| Analog Inputs | 1x Gold plated stereo 3‑pin XLR, 1x Gold plated stereo RCA |
| Outputs | 1x Gold plated 1/4" (6.35mm) TRS, 1x Gold plated 3.5mm TRS, 1x Gold plated 4‑pin balanced XLR, 1x Gold plater stereo RCA pass‑through |
| Frequency Responses | Balanced: 20Hz ~ 20kHz +0.01dB/‑0.03dB Single‑Ended: 10Hz ~ 50kHz +0.05dB/‑0.15dB |
| Input Impedance | 50 kilohms |
| Chassis Material | High grade CNC‑milled aluminum with black anodized finish |
| Input Power | 24 VDC |
| AC Adapter Input Power | 100 ~ 240 VAC, 50/60 Hz |
| Dimensions | 8.7" x 7.8" x 2.0" (221 x 198 x 51 mm) |
| BALANCED OUTPUT | |
| Output Power (per channel) | 16 ohms: 8800mW <1% THD 32 ohms: 6000mW <1% THD 300 ohms: 700mW <1% THD 600 ohms: 350mW <1% THD |
| Total Harmonic Distortion | 16 ohms: 0.000022% ‑133dB @ 1mW 16 ohms: 0.000032% ‑130dB @ 100mW 32 ohms: 0.000010% ‑140dB @ 1mW 32 ohms: 0.000018% ‑135dB @ 100mW 300 ohms: 0.000007% ‑143dB @ 1mW 300 ohms: 0.000010% ‑140dB @ 100mW |
| Intermodular Distortion | 300 ohms: 0.000045% SMPTE ‑127dB 70Hz ~ 7kHz 300 ohms: 0.000045% DFD ‑127dB 18kHz ~ 19kHz |
| Crosstalk | 300 ohms: 0.000045% 127dB |
| Noise (A weighted) | 1.6µV, potentiometer at nil |
| Signal‑to‑Noise Ratio | 300 ohms: dB <1% THD |
| Gain | 0.66x , 2.0x, 6.6x (‑4, +6, +16 dB), selectable using switch on front panel |
| Output Impedance | <0.1 ohms |
| SINGLE‑ENDED OUTPUT | |
| Output Power (per channel) | 16 ohms: 3200mW <1% THD 32 ohms: 1600mW <1% THD 300 ohms: 185mW <1% THD 600 ohms: 100mW <1% THD |
| Total Harmonic Distortion | 16 ohms: 0.000032% ‑130dB @ 1mW 16 ohms: 0.000035% ‑129dB @ 100mW 32 ohms: 0.000018% ‑135dB @ 1mW 32 ohms: 0.000020% ‑134dB @ 100mW 300 ohms: 0.000007% ‑143dB @ 1mW 300 ohms 0.000014% ‑137dB @ 100mW |
| Intermodular Distortion | 300 ohms: 0.000045% SMPTE ‑127dB 70Hz ~ 7kHz 300 ohms: 0.000045% DFD ‑127dB 18kHz ~ 19kHz |
| Crosstalk | 300 ohms: 0.003162% ‑90dB |
| Noise (A weighted) | 0.9µV, potentiometer at nil |
| Signal‑to‑Noise Ratio | 300 ohms: 138dB @ <1% THD |
| Gain | 0.33x, 1.0x, 3.3x (‑10, 0, +10 dB) selectable with switch on front panel |
| Output Impedance | <0.05 ohms |