IMSA S9 Helmet Kit — Built & Tested | Straight Cord, Speakers + Jack
Pickup available at 1756 EASTMAN AVE, STE #111
Usually ready in 24 hours
Delivery and Shipping
Delivery and Shipping
Free ground shipping on orders over $200. Orders under $200 ship ground for a flat $14 — we choose the best ground carrier.
Cutoff is 2PM PCT for same-day shipping.
Need it faster? Choose Next Day Air ($85), 2 Day Air ($45) or 3 Day Select ($25) at checkout — FedEx or USPS. Call (805) 650-7223 if you need UPS.
International orders: contact us at (805) 650-7223 or sales@sampsonracing.com for a shipping quote including duties and taxes.
Description
Description
The fully loaded IMSA S9 helmet kit — speakers and an ear bud jack. Cobalt speakers in the helmet plus a 3.5 mm ear bud jack, so you can run either one and switch depending on the event or the driver. Built and tested by SRC.
What comes in your order
- DIGITAL S9 microphone — built for clarity in high noise, optimized for SRC digital radio packages and works on analog systems too
- Flex boom — set the mic in the best position
- Cobalt helmet speakers
- 3.5 mm (1/8") ear bud jack — plug in ear buds when you want them
- Straight cord with standard IMSA four-circuit connection
- Ear buds — only if you choose them below
Choose your ear buds
The kit is $169 on its own. Add ear buds already wired in and the price is added:
- No ear buds — run the kit as-is, or add buds later
- Pro Challenger II (Made in the USA) — add $97
- Semi Custom (Made in the USA) — add $159
- Custom Ear Buds (Made in the USA) — add $224
All SRC ear buds are Made in the USA.
Fitment
IMSA is a four-circuit system, typically used for road racing and intercom systems. If your car harness is NASCAR (three circuit), order a NASCAR helmet kit instead.
Specifications
- Microphone: DIGITAL S9 noise-canceling mic on a flex boom
- Audio: Cobalt helmet speakers plus 3.5 mm (1/8") ear bud jack
- Cord: straight cord
- Connection: standard IMSA four-circuit
- Radios: optimized for digital, also works on analog systems
Other versions of this kit
- Speakers only: Straight Cord, Helmet Speakers
- Bud jack only: Straight Cord, Ear Bud Jack
- Coil cord: Coil Cord, Ear Bud Jack
Watch it in action
- How to install a racing helmet mic & speakers — step-by-step install in a helmet
- S9 Digital mic vs M101 — side-by-side comparison — hear the difference in a loud car
- S9 Digital vs M101 size comparison — see how small the S9 is
More install and how-to videos on our SRC YouTube channel.
Why racers buy from SRC
- Trusted by racers for over 35 years
- U.S.-based technical support from people who actually race
- Manufacturer warranty backed by SRC support
- Fast shipping throughout the U.S. and Canada
Questions? Call (805) 650-7223 or email sales@sampsonracing.com and we will make sure it fits your helmet, car harness and radio before it ships.
Rather build it yourself? The same S9 mic and full flex boom in a plug-together kit, from $95. Choose speakers or an ear bud jack rather than both. No soldering, instructions included.
→ DIY Plug-Together Helmet Kit
Payment & Security
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