Fosi Audio BOX X5 is an innovative compact phono preamplifier designed for vinyl enthusiasts, compatible with both MM and MC cartridges. This device features four adjustable gain levels (38/48/56/66 dB) and incorporates precise RIAA equalization, guaranteeing accurate and clear audio reproduction while maintaining the intricate details of vinyl records.
Premium-grade components are utilized in the assembly, featuring polymer film capacitors with a precision of 2%, resistors with a deviation of 0.1%, the OPA1612 operational amplifier, and gold-plated RCA connectors. This selection of materials ensures the delivery of a rich, warm sound with exceptional detail.
The compact aluminum alloy chassis boasts a minimalist aesthetic that seamlessly fits into any home audio setup. The BOX X5 is user-friendly: switching between MM and MC cartridges is accomplished via a toggle switch, while the power button and gain control are positioned for easy accessibility. Additionally, a grounding port is included to ensure stable performance.
Fosi Audio BOX X5 specifications:
- Cartridge support: MM/MC
- Input: RCA MM/MC
- Output: RCA
- Gain: 38/48/56/66 dB
- Input impedance: MM – 47 kOhm, MC – 100 Ohm
- Output impedance: 10 kOhm
- Noise level: 37 µV with 38 dB gain and 5 mV input
- Frequency range: 20 Hz – 20 kHz (±0.015 dB)
- Input voltage: AC 16V