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Balanced Headphone Amplifier THX AAA-888 MQA
SMSL offers with its SP400 an excellent headphone amplifier, based on a solid internal design. It integrates a THX amplifier chip, known for its incredible performance, as well as balanced and unbalanced inputs and outputs.
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The SP400's amplification circuitry includes a high-performance THX AAA-888 chip. It is capable of developing a high power output to accompany the vast majority of headphones on the market, including the most demanding, while maintaining a very low level of harmonic distortion. This chip is, of course, accompanied by high quality and high precision components to enable the SP400 to unveil its full potential and a rich and accurate reproduction.
In addition, the SP400 supports playback of Master Authenticated Quality (MQA) files, which provides playback as close as possible to the original studio recording.
Versatile, the SP400 has both balanced and unbalanced inputs and outputs. The SP400 is equipped with both balanced and unbalanced inputs and outputs, so both unbalanced RCA and balanced XLR inputs are available. On the output side, the SP400 offers an unbalanced 6.35mm jack headphone output, a balanced XLR 4-pin headphone output and a balanced XLR Pre-Out output.
The SP400's relay volume control allows for extremely precise adjustment of the sound level, while ensuring low noise. The volume control has 256 levels.
The power supply circuit of the SP400 is not to be outdone, SMSL integrating 2 custom designed 24W high efficiency and low noise power supplies. These last ones allow to provide to all the audio circuits a clean electrical signal, essential to ensure a high quality sound reproduction.
All of the SP400's components are integrated into a beautiful CNC machined aluminum housing. The design of the SP400 follows the design of the other devices in the range for visually consistent integration.
The front of the device is also adorned with a beautiful OLED screen, displaying all the useful information and allowing intuitive navigation.
In order to adapt to all types of helmets, the SP400 offers a 3-level gain control. Thus, it is possible to use either a high-sensitivity helmet or a high impedance model.
| Specifications | |
|---|---|
| Product type | Balanced headphone amplifier |
| Amplification chip | THX AAA-888 |
| Înputs | 1x Single-ended stereo RCA 1x Balanced stereo XLR |
| Outputs | 1x Jack 6.35mm single-ended headphone output 1x XLR 4 poles balanced headphone output 1x XLR Balanced output (Pre-Out) |
| Power output | Balanced : 2x 12W @ 16Ω, 2x 6W @ 32Ω, 2x 880mW @ 300Ω, 2x 440mw @ 600Ω Single-ended : 2x 6W @ 16Ω, 2x 3W @ 32Ω, 2x 440mW @ 300Ω, 2x 220mW @ 600Ω |
| SNR | 133dB (A-Weighted) |
| Output noise | 1.9µV (A-Weighted) |
| THD+N | -123dB, 0.00007% (1kHz, 32Ω) -117dB, 0.00013% (20Hz - 20kHz, 32Ω, -3dB) |
| THD | < -125dB, 0.00006% |
| Input impedance | 47kΩ |
| Output impedance | Approx. 0Ω |
| Frequency response | 0.1Hz - 500kHz (-3dB) |
| general | |
|---|---|
| Power supply | AC100-240V, 50-60Hz |
| Consumption | < 40W |
| Standby consumption | < 0.1W |
| Dimensions | 225 x 210 x 43mm |
| Weight | 1330g |
| Color | Black |
| Package | 1x SMSL SP400 1x Remote control 1x Power cable |
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Jean-Louis T.
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