SMH-H4X2 - Headphones Senal - Free user manual and instructions

Product Type	Over-ear headphones
Brand	Senal
Model	SMH-H4X2
Design	Closed-back, circumaural
Driver Size	50 mm
Impedance	32 ohms
Sensitivity	100 dB SPL/mW
Frequency Response	20 Hz - 20 kHz
Maximum Input Power	500 mW
Connector Type	3.5 mm stereo jack (1/8")
Included Adapter	1/4" (6.35 mm) screw-on adapter
Cable Length	3 m (straight, single-sided)
Weight	Approx. 250 g (without cable)
Foldable	Yes, for portability
Earpad Replacement	Replaceable velour or leatherette pads
Headband Adjustment	Self-adjusting suspension headband
Application	Studio monitoring, home audio, gaming
Cleaning Instructions	Wipe with a soft, dry cloth; do not use solvents
Safety Warnings	Do not use at high volume for extended periods to avoid hearing damage
Repairability	Spare parts available through Senal support; driver and cable replaceable
Warranty	2-year limited warranty

Frequently Asked Questions - SMH-H4X2 Senal

What is the impedance of the Senal SMH-H4X2 headphones?

The SMH-H4X2 has an impedance of 32 ohms, making them easy to drive with most devices like smartphones, laptops, and audio interfaces.

Can I use these headphones with a smartphone?

Yes, the 32-ohm impedance and standard 3.5mm plug allow direct connection to smartphones, tablets, and laptops. An included 1/4" adapter is provided for professional equipment.

Are the ear pads replaceable?

Yes, the ear pads are designed to be user-replaceable. You can purchase replacement pads from Senal or authorized dealers.

How do I clean the headphones?

Use a soft, dry cloth to gently wipe the headband and ear pads. For stubborn dirt, slightly dampen the cloth with water. Avoid using alcohol or harsh chemicals.

What is the frequency response?

The frequency response is 20 Hz to 20 kHz, covering the full range of human hearing and suitable for critical listening.

Is there a warranty?

Senal offers a 2-year limited warranty against manufacturing defects. Check your local retailer for terms.

Can I use these headphones for gaming?

Absolutely. The closed-back design provides good isolation, and the accurate sound reproduction is ideal for gaming. However, they do not include a built-in microphone.

Are the headphones foldable for travel?

Yes, the SMH-H4X2 features a folding design for compact storage and portability.

What type of cable is included?

The headphones come with a 3-meter straight cable with a 3.5mm connector on both ends. A 1/4" screw-on adapter is also included.

How do I adjust the headband?

The SMH-H4X2 uses a self-adjusting suspension headband that automatically fits your head shape. No manual adjustment is needed.

USER MANUAL SMH-H4X2 Senal

SMH-1 01 02/120CH2

PROFESSIONAL COMMUNICATION HEADSET

Thank you for choosing Senal.

The Senal communication headsets are ideal for use with wired and wireless communications systems. The cardioid dynamic microphone is optimized for clear and intelligible voice communication, and the around-the-ear, closed-back design assures isolation even in noisy environments.

The SMH-series headphones feature Senal's twist-locking jack allowing compatible cables and accessories to be attached. Senal offers a wide range of accessories to expand the compatibility of your headset.

To attach the cable: ① Fully insert the plug. ② A quarter-turn clockwise locks the plug into place.

To detach the cable: Turn the plug counterclockwise a quarter-turn and remove it from the jack.

Muting the Microphone

Swivel the gooseneck to the upright position to mute the microphone. Returning the mic back down to the speaking position will unmute it.

Available Accessories

SMH-H5X2: TRRS to 5-Pin XLR/M

For Telex Systems

SMH-HM3X2: TRRS to M 3.5 mm with 1/4 in. & 3-Pin XLR/M

For connection to mixer or broadcast console

SMH-HMM2: TRRS to M 3.5 mm & Stereo M 3.5 mm for PC

Ideal for gaming on a PC or laptop

SMH-PIGTAIL: TRRS to Unterminated Wire

Attach the connectors you need for your communications system

SMH-H4X2: TRRS to 4-Pin XLR/F

For Portacom/Clear-Com Systems

Specifications

Microphone

Element Moving coil dynamic
Polar Pattern Cardioid
Frequency Range 50 Hz	to 18 kHz
Sensitivity -79 dB ±3 dB	(0 dB = 1 V/microbar,1 kHz indicated by open circuit)
Impedance 200	Ω ±30% @1 kHz

Headphone

Speaker Dimension 40 mm
Magnet Type Neodymium
Frequency Range 20 Hz to 20 kHz
Sensitivity 87 dB (SMH-1010CH2)84 dB (SMH-1020CH2)
Nominal input power 20 mW
Max. Input Power 40 mW
Impedance 400	Ω (SMH-1010CH2)200 Ω parallel (SMH-1020CH2)
Distortion	≤ 5%

Warning

Protect your hearing!

Exposure to high sound pressure levels may cause permanent hearing loss. Avoid listening at high volumes for extended periods.

Symptoms of noise-induced hearing loss may include persistent ringing, pain, itching, or inflammation of the ears, and difficulty understanding speech.

For more information, visit http://www.osha.gov/SLTC/noisehearingconservation/ http://www.cdc.gov/niosh/topics/noise/

Please note: Government URLs are subject to change. If these links don't connect you to the right information, visit www.cdc.gov and www.osha.gov or do an Internet search for the phrase “hearing loss.”

Three-Year Limited Warranty

This SENAL product is warranted to the original purchaser to be free from defects in materials and workmanship under normal consumer use for a period of three (3) years from the original purchase date or thirty (30) days after replacement, whichever occurs later. The warranty provider's responsibility with respect to this limited warranty shall be limited solely to repair or replacement, at the provider's discretion, of any product that fails during normal use of this product in its intended manner and in its intended environment. Inoperability of the product or part(s) shall be determined by the warranty provider. If the product has been discontinued, the warranty provider reserves the right to replace it with a model of equivalent quality and function.

This warranty does not cover damage or defect caused by misuse, neglect, accident, alteration, abuse, improper installation or maintenance. EXCEPT AS PROVIDED HEREIN, THE WARRANTY PROVIDER MAKES NEITHER ANY EXPRESS WARRANTIES NOR ANY IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. This warranty provides you with specific legal rights, and you may also have additional rights that vary from state to state.

To obtain warranty coverage, contact the Senal Customer Service Department to obtain a return merchandise authorization (“RMA”) number, and return the defective product to Senal along with the RMA number and proof of purchase. Shipment of the defective product is at the purchaser’s own risk and expense.

For more information or to arrange service, visit www.senalsound.com or call Customer Service at 212-594-2353.

Product warranty provided by the Gradus Group.

www.gradusgroup.com

Senal is a registered trademark of the Gradus Group.

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