AHDH0033D

Behind-the-Head Dual Muff Headset for Motorsports Pit Crews – 23dB Noise Isolation

$130.00 USD

SKU: AHDH0033D-BU

Color:Blue

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The AHDH0033D is a professional-grade behind-the-head headset designed specifically for motorsports pit crews and high-noise team environments. Based on the proven AHDH0032 platform, this upgraded model features soft gel ear pads for improved comfort, a dynamic microphone for high-clarity voice transmission, and a tuned ergonomic fit for extended use under pressure.
Whether you're trackside in a loud pit lane or coordinating crew tasks in real time, the AHDH0033D delivers clear, noise-isolated communication when it matters most.

23dB Noise Reduction for Hearing Protection

Certified to ANSI S3.19-1974 standards, this headset provides passive noise isolation ideal for loud motorsport environments.

Enhanced Noise Reduction

Premium Gel-Foam Ear Pads (cooling gel + memory foam) ensure superior comfort and a tight acoustic seal, delivering effective noise isolation and reduced fatigue during extended use. Keeps your team focused and protected in high-noise pit environments.

Dynamic Noise-Cancelling Microphone (AHMC0003D)

Optimized for high-noise conditions, the included dynamic mic offers superior voice pickup and background noise rejection for accurate team communication.

Behind-the-Head Design (Pit Crew Helmet Compatible)

Low-profile band wraps around the neck, keeping the top of the head clear. Compatible with most pit crew helmets, bump caps, or soft caps—providing a secure, comfortable fit without interference.

5-Pin Cable Compatibility

Works with standard 5-pin communication cables such as CABLE-AHDH00, CABLE-AHDH01PTT, and CABLE-AHDH02PTT. (Cables sold separately.)

Summary
	AHDH0033D$130.00 (0) View details	AHDH0032$110.00 (0) View details	AHDH0042$120.00 (0) View details	ASH1042$120.00 (0) View details
Color	BlueRed	YellowRedBlack	RedYellowBlack	—
NRR	23 dB (ANSI S3.19-1974)	23 dB (ANSI S3.19-1974)	24 dB (ANSI S3.19-1974)	23 dB (ANSI S3.19-1974)
Noise Reduction Method	PNR	PNR	PNR	PNR
Noise Cancelling MIC Type	Dynamic	Condenser	Condenser	Condenser
Style	Behind the Head	Behind the Head	Over the Head	Clip on Hardhat
Boom	Hybrid (Universal Flexible and Hinged Wire)	Hybrid (Universal Flexible and Hinged Wire)	Hybrid (Universal Flexible and Hinged Wire)	Hybrid (Universal Flexible and Hinged Wire)
PTT Switch Reliability	1,000,000	1,000,000	1,000,000	1,000,000
Speakers
Size	50	50	50	50
Impedance	32 Ω at 1 kHz	32 Ω at 1 kHz	32 Ω at 1 kHz	32 Ω at 1 kHz
Power Rating	Normal 30 mW (0.98 V RMS), Max 100 mW (1.79 V)	Normal 30 mW (0.98 V RMS), Max 100 mW (1.79 V)	Normal 30 mW (0.98 V RMS), Max 100 mW (1.79 V)	Normal 30 mW (0.98 V RMS), Max 100 mW (1.79 V)
Output Sound Pressure Level	116.0 - 119.0 dB SPL with IEC-318 at 1 mW (0.178 V), 1 kHz	116.0 - 119.0 dB SPL with IEC-318 at 1 mW (0.178 V), 1 kHz	116.0 - 119.0 dB SPL with IEC-318 at 1 mW (0.178 V), 1 kHz	116.0 - 119.0 dB SPL with IEC-318 at 1 mW (0.178 V), 1 kHz
Frequency Response	210 Hz - 5000 Hz	210 Hz - 5000 Hz	210 Hz - 5000 Hz	210 Hz - 5000 Hz
Microphone
Type	Noise Cancelling Dynamic	Noise Cancelling Condenser	Noise Cancelling Condenser	Noise Cancelling Condenser
Sensitivity	-71 ± 3 dB (at L = 50 mm)	-47 ± 3 dB (at L = 50 mm)	-47 ± 3 dB (at L = 50 mm)	-47 ± 3 dB (at L = 50 mm)
Sensitivity Reduction	-71 ± 3 dB (0 dB = 1.0 V/Pa, 1 kHz)	-47 ± 3 dB (0 dB = 1.0 V/Pa, 1 kHz)	-47 ± 3 dB (0 dB = 1.0 V/Pa, 1 kHz)	-47 ± 3 dB (0 dB = 1.0 V/Pa, 1 kHz)
Impedance	150 Ω (Low Impedance)	680 Ω (Low impedance)	680 Ω (Low Impedance)	680 Ω (Low Impedance)
Frequency Range	400 Hz - 6000 Hz	100 Hz - 16 kHz	100 Hz - 16 kHz	100Hz - 16KHz
Operation Voltage	1.0 V	1.0 V	1.0 V	1.0V
Signal-to-Noise Ratio	> 60 dB	> 60 dB	> 60 dB	> 60 dB
Connectivity
Plug	5-Pin Mini Chassis XLR Connector (Male)	5-Pin Mini Chassis XLR Connector (Male)	5-Pin Mini Chassis XLR Connector (Male)	5-Pin Mini Chassis XLR Connector (Male)
Jack	3.5mm input Jack for Scanner or other Device	3.5mm input Jack for Scanner or other Device	3.5mm input Jack for Scanner or other Device	3.5mm input Jack for Scanner or other Device

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