in 16 offers
The lowest price for Fosi Audio P4 Mini Preamplifier right now is $143.25 at Opentip.com, compared across 10 retailers.
The all-time low was $85.00 on 6 Sept 2026 — today's price is 69% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 9 Oct 2026.
Fosi Audio P4 Mini Preamplifier
Last updated at 09/10/2026 11:36:32
Fosi Audio P4 Mini Preamp with 3 RCA Inputs, Home Audio Stereo Pre amp for Amplifier/Active Subwoofer/Speakers, Preamplifier with 3-Level Adjustable
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Fosi Audio P4 Mini Preamp W/ Remote Control
Delivery $51.06
Fosi Audio P4 Mini Preamp with 3 RCA Inputs, Home Audio Stereo Pre amp for Amplifier/Active
Free delivery
Fosi Audio P4 Mini Preamplifier W/3 Inputs Gain Adjustable Bass &
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Fosi Audio P4 Pre Amplifier -
Free delivery between Sat – Thu
Fosi Audio P4 Mini Preamp With 3 RCA Inputs, Home Audio Stereo Pre Amp For Amplifier/Active Subwoofer/Speakers, Preamplifier With 3-Level Adjustable
Delivery $28.64
Fosi Audio P4 Mini Preamp with 3 RCA Inputs, Home Audio Stereo Pre amp for Amplifier/Active Subwoofer/Speakers, Preamplifier with 3-Level Adjustable G
Free delivery between 20–23 Oct
Fosi Audio P4 Mini Preamp with 3 RCA Inputs, Home Audio Stereo Pre amp for
Delivery $49.20
Fosi Audio P4 Mini Preamp with 3 RCA Inputs, Home Audio Stereo Pre amp for Amplifier/Active Subwoofer/Speakers, Preamplifier with 3-Level Adjustable G
Delivery between 15–18 Oct $29
Fosi Audio P4 Mini Preamplifier
Free delivery
| Number of Channels | 2.0 |
| Amplifier Class | Class A |
| Bluetooth | 5.0 |
| Connection Type | RCA |
| Headphone Jack | No |
Fosi Audio P4 Mini Preamp with 3 RCA Inputs, Home Audio Stereo Pre amp for Amplifier/Active Subwoofer/Speakers, Preamplifier with 3-Level Adjustable
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Fosi Audio P4 Mini Preamp W/ Remote Control
Delivery $51.06
Fosi Audio P4 Mini Preamp with 3 RCA Inputs, Home Audio Stereo Pre amp for Amplifier/Active
Free delivery
Fosi Audio P4 Mini Preamplifier W/3 Inputs Gain Adjustable Bass &
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Fosi Audio P4 Pre Amplifier -
Free delivery between Sat – Thu
| Number of Channels | 2.0 |
| Amplifier Class | Class A |
| Bluetooth | 5.0 |
| Connection Type | RCA |
| Headphone Jack | No |
