in 21 offers
The lowest price for Fosi Audio P4 Mini Preamplifier right now is $141.19 at AliExpress.com - AliExpress-226247430, compared across 10 retailers.
The all-time low was $85.00 on 6 Sept 2026 — today's price is 66% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 2 Nov 2026.
Fosi Audio P4 Mini Preamplifier
Last updated at 02/11/2026 05:24:41
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 HiFi Preamplifier: 3 RCA Inputs, EQ/Bypass, Swappable Op-Amps, Treble & Bass Tone
Free delivery
Fosi Audio P4 Pre Amplifier -
Free delivery between 3–9 Nov
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 $28.47
Fosi Audio P4 Mini Preamp With 3 Rca Inputs, Home Audio Stereo Pre Amp
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 with 3 RCA Inputs, Home Audio Stereo Pre amp for
Delivery $50.84
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 11–13 Nov
P4 Mini Preamp with 3 RCA Inputs, Home Audio Stereo Pre amp for Amplifier/Active Subwoofer/Speakers, Preamplifier with 3-Level Adjustable Gain 3/6/9 d
Delivery between 8–11 Nov $29
Fosi Audio P4 Mini Preamplifier
Free delivery
P4 Mini Preamp with 3 RCA Inputs, Home Audio Stereo Pre amp for Amplifier/Active Subwoofer/Speakers, Preamplifier with 3-Level Adjustable Gain 3/6/9 d
Free delivery between 11–13 Nov
| 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 HiFi Preamplifier: 3 RCA Inputs, EQ/Bypass, Swappable Op-Amps, Treble & Bass Tone
Free delivery
Fosi Audio P4 Pre Amplifier -
Free delivery between 3–9 Nov
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 $28.47
Fosi Audio P4 Mini Preamp With 3 Rca Inputs, Home Audio Stereo Pre Amp
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!
| Number of Channels | 2.0 |
| Amplifier Class | Class A |
| Bluetooth | 5.0 |
| Connection Type | RCA |
| Headphone Jack | No |
