| Brand | Fosi Audio |
|---|---|
| Type | Power Amplifier |
| Manufacturer Warranty | 2 Years |
| Color | Black |
| Model | P4 |
| Audio Outputs | RCA |
Check the listing for details. Fosi Audio P4 Mini Preamplifier 3 Inputs Gain Bass&Treble Control (Refurbished). Color: Black, Condition: Open box. Listed at 79.99 USD. 🔥 Like New & Fully Certified! N OTE :This is a preamplifier, not a power amplifier or phono preamp, can't be used for turntables or passive speakers. First, connect P4 to your audio sources via RCA cables, then connect P4 to an amplifier via RCA cables, and lastly, use speaker cables to connect the amplifier to the passive speakers.