Fosi Audio Box X5
Phono Preamplifier MM/MC OPA1612
The Fosi Audio Box X5 phono preamplifier is a small, high-quality device that accepts MM and MC cells. Based on the use of OPA1612 in DIP8 and high-fidelity RIAA equalization, it delivers highly qualitative sound reproduction of your favorite vinyl records. It also features 4 levels of gain adjustment, enabling it to adapt to a variety of sources. Gain can be set at 66dB, 56dB, 48dB and 38dB. The Fosi Audio Box X5 is powered by 16V AC.
Fosi Audio Box X5: MM/MC compatibility and 4 gain levels
The Fosi Audio Box X5's four gain levels ensure compatibility with different sources. In addition, a switch lets you set the input impedance to 47kOhm for MM cells or 100kOhm for MC cells.
Gain can be set to the following values via a rotary switch on the rear of the unit: 66dB, 56dB, 48dB or 38dB.
Fosi Audio Box X5: high-fidelity RIAA equalization
The equalization of the Box X5 ensures a level of detail and clarity in the final sound reproduction for a rich listening experience. This equalization significantly reduces noise levels and delivers a wide dynamic range.
Fosi Audio Box X5: Dual OPA1612
The DIP8-mounted OPA1612s on the Box X5's circuit offer a high-quality audio experience, and are also easily replaceable for any user wishing to customize their listening experience.
Fosi Audio Box X5 overview
| 1 | Power indicator |
| 2 | Power button |
| 3 | MM/MC-compatible RCA input |
| 4 | Gain selector |
| 5 | RCA output |
| 6 | Ground terminal |
| 7 | 16V AC power input |
Fosi Audio Box X5 test by Audio Science Review
Fosi innovates by bringing best in class performance while packaging the unit in an attractive enclosure while keeping the cost very reasonable. There is nothing more to ask! I am happy to recommend Fosi Box X5 phono stage.
| Specifications | |
|---|---|
| Product type | Phono preamplifier |
| OPA | OPA1612 DIP8 format |
| Input | 1x RCA phono input (MM/MC) |
| Output | 1x RCA output |
| THD | ≤ 0.009% |
| SNR | ≥ 92dB |
| Frequency response | 20Hz-20kHz (±0.015dB) |
| Gain adjustment | 66dB / 56dB / 48dB / 38dB |
| General | |
|---|---|
| Power supply | 16V 1A |
| Dimensions | 104 x 165 x 356mm |
| Package | 1x Fosi Audio Box X5 phono preamplifier 1x Mains adapter |
