Fosi Audio Box X4 MM Turntable Phono Preamplifier
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2021 NEW MODEL: The updated version for BOX X2. Next-generation phono preamp for unrivaled sound quality.
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MM Phono Preamplifier: The BOX X4 phono preamp supports 3.5MM AUX and MM turntable input, converting phono signals to Line Level signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality. Designed with a grounding post to protect your turntable.
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Tube Headphone Amplifier & Preamplifier: The BOX X4 is designed with a 3.5MM AUX headphone and RCA output, highly useful beyond imagination.
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Applicable Vacuum Tube Model: 5654W/6K4/6J1/6J4/GE5654/6AK5/66*In vacuum tubes, etc. You can replace the vacuum tubes to DIY your stereo system. Different tubes with different sounds.
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What You Get: BOX X4 phono preamp, DC 12V power supply, user manual, our worry-free 24-month warranty, and friendly customer service.
Specifications
| Specifications | Details |
|---|---|
| Model | BOX X4 |
| Applicable headphone types | 16 Ω |
| Input Mode | MM turntable + 3.5mm AUX |
| Output Mode | RCA + 3.5mm headphone output |
| Output | Active(powered) speakers, Amplifier, Headphones |
| Frequency Response | Standard RIAA |
| THD | ≤ 0.1% |
| SNR | ≥ 70dB |
| Device Dimension | 4.72 x 3.97 x 1.37 inches |
| DC Input Range | 12V |
| Input Voltage Range | AC 110V - 240V |
| Output Voltage Level | 1kHz and 650mV |
| Power Supply | 12V 1.5A |
What‘s in the box？
| Item | Quantity |
|---|---|
| BOX X4 phono preamp | x 1 |
| Vacuum Tubes | x 2 |
| DC 12V power supply | x 1 |
| User's Manual | x 1 |
BOX X4 User Manual
Original: $89.99
-65%$89.99
$31.50
Description
-
2021 NEW MODEL: The updated version for BOX X2. Next-generation phono preamp for unrivaled sound quality.
-
MM Phono Preamplifier: The BOX X4 phono preamp supports 3.5MM AUX and MM turntable input, converting phono signals to Line Level signals with low-noise integrated circuits and high-quality components to remove low-frequency noise ensure clear sound quality. Designed with a grounding post to protect your turntable.
-
Tube Headphone Amplifier & Preamplifier: The BOX X4 is designed with a 3.5MM AUX headphone and RCA output, highly useful beyond imagination.
-
Applicable Vacuum Tube Model: 5654W/6K4/6J1/6J4/GE5654/6AK5/66*In vacuum tubes, etc. You can replace the vacuum tubes to DIY your stereo system. Different tubes with different sounds.
-
What You Get: BOX X4 phono preamp, DC 12V power supply, user manual, our worry-free 24-month warranty, and friendly customer service.
Specifications
| Specifications | Details |
|---|---|
| Model | BOX X4 |
| Applicable headphone types | 16 Ω |
| Input Mode | MM turntable + 3.5mm AUX |
| Output Mode | RCA + 3.5mm headphone output |
| Output | Active(powered) speakers, Amplifier, Headphones |
| Frequency Response | Standard RIAA |
| THD | ≤ 0.1% |
| SNR | ≥ 70dB |
| Device Dimension | 4.72 x 3.97 x 1.37 inches |
| DC Input Range | 12V |
| Input Voltage Range | AC 110V - 240V |
| Output Voltage Level | 1kHz and 650mV |
| Power Supply | 12V 1.5A |
What‘s in the box？
| Item | Quantity |
|---|---|
| BOX X4 phono preamp | x 1 |
| Vacuum Tubes | x 2 |
| DC 12V power supply | x 1 |
| User's Manual | x 1 |
BOX X4 User Manual
