in 15 offers
The lowest price for Stax SRM-400S Semiconductor Driver Unit right now is $1,747.63 at eBay.com.au, compared across 11 retailers.
The all-time low was $1,390.00 on 3 July 2026 — today's price is 26% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 26 Oct 2026.
Stax SRM-400S Semiconductor Driver Unit
Last updated at 26/10/2026 08:32:40
Stax Srm-400s Original Electrostatic Premium Driver Amplifier Solid
Free delivery
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STAX SRM-400S Semiconductor Electrostatic Driver
STAX SRM-400S Headphone Amplifier
Free delivery between 30 Oct – 2 Nov
Stax SRM-400s Solid State Headphone Driver Amplifier with RCA and XLR Inputs
Free delivery between Thu – Fri
STAX - SRM-400S - Drive Unit
Free delivery
STAX SRM-400S Solid-State Output Driver Unit Earspeakers Headphone Amp
Free delivery
Stax SRM-400S Electrostatic Headphone Amplifier – Crisp Electrostatic Energy
Free delivery between Wed – Thu
STAX SRM-400S Solid State Driver
Free delivery
Stax SRM-400s Solid State Driver
Free delivery between 29 Oct – 6 Nov
SRM-400S
Free delivery
| Connection Type | XLR, RCA |
| Audio Outputs | RCA parallel output terminal |
| Output Types | RCA parallel output terminal |
| Depth | 376 mm (maximum protruding portion included) |
| Height | 102 mm |
Stax Srm-400s Original Electrostatic Premium Driver Amplifier Solid
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!
STAX SRM-400S Semiconductor Electrostatic Driver
STAX SRM-400S Headphone Amplifier
Free delivery between 30 Oct – 2 Nov
Stax SRM-400s Solid State Headphone Driver Amplifier with RCA and XLR Inputs
Free delivery between Thu – Fri
STAX - SRM-400S - Drive Unit
Free delivery
| Connection Type | XLR, RCA |
| Audio Outputs | RCA parallel output terminal |
| Output Types | RCA parallel output terminal |
| Depth | 376 mm (maximum protruding portion included) |
| Height | 102 mm |
