Fosi Audio Phono Preamp for Turntable Phonograph Preamplifier With Vacuum Tube Amplifier HiFi BOX X4

Fosi Audio Phono Preamp for Turntable Phonograph Preamplifier With Vacuum Tube Amplifier HiFi BOX X4 Notice: 1. The BOX X4 is currently equipped with a 6J1 vacuum tube. 2.BOX X4 is only a preamplifier, not amplifier, can not be connected with passive speakers directly, If you need connect BOX X3 with passive speakers, you need to connect it with an amplifier then connect the amplifier with your passive speakers. Features: 1. Tube MM Phono Preamplifier: The BOX X4 phono preamp supports 3.5MM AUX and MM turntable input, converting phono signals to Line Level with low-frequency noise removal using high-quality components and low-noise integrated circuits. Protect your turntable with the grounding post feature 2.Tube Headphone Amplifier & Preamplifier: The Fosi Audio BOX X4's versatile design includes a 3.5MM AUX headphone and RCA output, offering a range of usability beyond expectations 3.Applicable Vacuum Tube Model: 6K4/6J1/6J4/GE5654/6AK5/66*In vacuum tubes, etc. Achieve a customized stereo system by replacing vacuum tubes. With different tubes producing unique sounds, it's a DIY opportunity worth exploring Highlight: Model: BOX X4 Power Adapter Output: 12V Product Adapter Input Voltage Range: AC 100V - 240V Output Voltage Level: 1kHz and 650mV SNR ≥ 70dB THD ≤ 0.1% Frequency Response: Standard RIAA Product Weight: 0.71 lb/320g Product Dimensions: 3.97x4.72x1.37 inch (10.09*12*3.5 cm) Input Mode: MM turntable input +3.5mm AUX Output Mode: RCA output + 3.5mm headphone output Applicable headphone types: 16 Ω - 300 Ω Package Include: *Box X4 Phono Preamp x1 * 6J1 Vacuum Tubes x2 *12V Power Adaptor x1 *User Manual x1 QA Q1:Can the headphone and RCA outputs be used simultaneously? Yes. When both the 3.5mm headphone output and RCA output are connected, sound will be output through both the headphones and RCA connectors. Q2:Can the BOX X4 be used with an MC cartridge? NO.The BOX X4 is designed specifically for use with MM cartridges. However, our upcoming model, the BOX X5 is compatible with MC cartridges.

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