A MARTIN-HORN® 2298GM consists of four diaphragm acoustic horns:
a’long, a’short, d“long, d“short:
The difference is created by the length of the horns.
This creates a tremolo effect. On the back of the diaphragm acoustic horn (on the diaphragm housing), you can find the rating plate with the relevant name.
The sound is produced between the diaphragm acoustic horn and the diaphragm housing.
The customer should not try to disassemble the diaphragm acoustic horn here as the diaphragm acoustic horns will need to be tuned again.
If you do elect to disassemble the diaphragm acoustic horns, we ask that you refer to our installation instructions: Instructions for installing membranes yourself
In general, we do request that you send the disassembled diaphragm acoustic horns back to us (including diaphragm housing). The only way to ensure a pure sound and a penetrating tremolo is to send the horns to us for retuning in our acoustics laboratory. (Warranty)
Snow caps protect the diaphragm acoustic horns from external elements such as: Snow and rain, mud and dirt. We also recommend that snow caps be used when the diaphragm acoustic horns are installed in the engine area, cooling area and front bumper.
Installing the snow caps also decreases the sound volume by around 5 dB(A).
The DIN states that the signal duration should be 3 seconds +/- 0.5 seconds.
Please check that the signal duration is within these limitations.
The speed of the MARTIN-HORN® is dependent on the supply voltage.
This means that the higher the supply voltage, the faster the MARTIN-HORN® runs and vice-versa: the lower the voltage, the slower it runs.
We recommend installing a resistor to reduce the speed.
We’d be delighted to answer any other questions you may have.
Visit our annual internal training course for users of the MARTIN-HORN® / vehicle constructors.
You can find more tips on using the MARTIN-HORN® here.
You can also simply ring us on +49 (0)7256 9200 or send us an e-mail, addressed to firstname.lastname@example.org.
We’d be delighted to help you.
We can deliver them very quickly.
We’d be delighted to send you a quote and will send the price list with it.
Simply ring us or send us an e-mail, addressed to email@example.com.
You can reach us:
Monday to Thursday
7:00 to 12:00
13:00 to 16:00
7:00 to 12:00
Max B. Martin GmbH & Co.KG
Phone: +49 (0) 72 56 / 920-0