Fosi Audio BOX X5 HIFI Phono Preamp, Mini Preamplifier Home Audio for MM/MC Cartridge Turntable RIAA Preamplifier Compact with V

For Brazilian customers:

All BOX X5's shipped from our Brazilian warehouse are equipped with a 110V power adapter! Please check if the power adapter is suitable for your region before purchasing!

Audio BOX X5 HIFI Phono Preamp, Mini Preamplifie Home Audio for MM/MC Cartridge Turntable RIAA Preamplifier compact with V3

Description：

·High Performance: The BOX X5 phono preamp is compatible with both MM and MC cartridges, featuring 4 gain settings and an excellent precise RIAA equalization to provide a clean, direct pass-through of a signal when paired with your turntable

·Audiophile-Grade Components: This preamp utilizes a variety of materials such as 2% Precision Polyester Film Capacitors, Green Sleeve Copper Lead Audio Capacitors, 0.1% High-Precision Film Resistors, OPA1612 Op-Amp, Gold-Plated RCA Jacks, and more. It picks up subtle and finite detail produced from it and delivers a truly warm and inviting sound

·Multiple Gain Settings: With 4-Level gain adjustment settings of 38/48/56/66dB, the preamplifier accommodates both MM & MC cartridge types, meeting a variety of needs. This enhances your phono stage and helps in rebuilding the vintage stereo sound

·Mini and Exquisite: It's built around a minimalist yet functional design featuring an all-aluminum alloy chassis. When paired with the V3 stereo amplifier, the BOX X5 can bring out the best in your vinyl playback, enhancing its frequency response and dynamic performance

·User Friendly Design: It has an easy-to-use one-touch power button, gain control, and a convenient toggle switch to switch between MC and MM cartridges. In addition, the grounding port ensures that the connection is secur

Highlight:

·Surpported Cartridges：MM/MC

·Input：MM/MC RCA

·Output：RCA

·Gain：38/48/56/66dB

·Input Impedance：MM: 47KΩ/MC: 100Ω

·Output Impedance:10KΩ

·SNR:92dB(38dB gain, 5mV input)

·THD:0.009%(38dB gain, 5mV input)

·Noise Floor:37μV(38dB gain, 5mV input)

·Frequency Response:20Hz-20kHz(±0.015dB)

·Input Voltage:AC 16V

Package Include:

*BOX X5 Phono Preamp

*AC 16V Power Adapter

*User Manual

QA

Q1: Can the BOX X5 be used as a standard preamplifier?

NO. The BOX X5 is a phono preamp with a higher amplification gain than a regular preamp, thus it is not suitable for use as a standard preamp.

Q2: How do I adjust the gain and resistance settings on the BOX X5 based on the cartridge?

We recommend the following combinations (of course, adjustments can be made based on the actual setup):

MM -- 47KΩ: > 2mV
MM Low / MC High -- 47KΩ: ≤ 2mV
MC -- 100Ω: ≤ 0.5mV
MC Low -- 100Ω: ≤ 0.25mV

Q3: What should I do if the voltage of the power adapter I received is incompatible?

We recommend specifying your required power plug type in the purchase notes to avoid such situations. If you receive an incorrect power adapter, please contact us. We will reship a new one free of charge.