[naturaldisaster]

Originally Posted by rakesh_r

I have been using Roots Windtone electronic since more than a year on my cross. I found them better than any other windtones in terms of sound and life.

I know of the Roots Windtone and the Windtone 90. Which one is this? I have the former fitted in my Nano. Was installed by a crook of a mech using terribly thin wiring and the relay that pulls power from the horn button circuit itself . Then got thicker wires and pulled one from the battery to the relay with a Fuse near the battery (much more frustrating due to the fact that Nano has its battery below the driver seat.) Sounds much louder than stock Nano horn (read Scooty horn.) A friend has the Windtone 90 which is much louder.

[ashis89]

Originally Posted by Geo_Ipe

Have been using Bosch Symphony on my Santro for ~5 years now!
Had to replace the relay once some 6 months ago. Otherwise the horns are still going strong!

My post from November 2012:

I got the Symphony’s installed in my WagonR today morning. Must say I am loving it. It has a clear and crisp note. It feels a bit too loud and I feel embarrassed when people turn around to look. Hope I don’t get thrashed some night for disturbing people’s sleep .

[captain.torque]

Hi experts -- PLEASE HELP !!!

I plan to get Roots Megasonic installed in my Vitara Brezza. I have some queries

1. What is the OEM relay output of Brezza?
2. Can i plug n play the Megasonic horns with the original relay?
3. If not, which relay should I get from the market?
4. What should be the output of teh relay to match supersonics? (Any particular brand)
5. To install the new relay will wires be cut? If not how will it be connected?

Please help! Thanks in advance.

[R2D2]

Originally Posted by captain.torque

Hi experts -- PLEASE HELP !!! I plan to get Roots Megasonic installed in my Vitara Brezza. I have some queries

1. What is the OEM relay output of Brezza?

This information is generally not disclosed by manufacturers. But horn relays generally are about rated for least 2-3x the load they need to carry. So if your factory horns are 2 x 3A each expect the relay to be about 12-20A. The relay is generally in the main fuse box under the bonnet. Single horn disc models will not have a relay.

2. Can i plug n play the Megasonic horns with the original relay?

Maybe. This is if the amps drawn by factory horns is more or less equal to the power drawn by the new horns. I checked on Amazon and noted the horns are rated for 4A each. You'll need to compare them with the OEM horns which in my experience are also rated between 3-4A each.

3. If not, which relay should I get from the market?

Hella, Minda, Bosch, Denso (if available). Please ensure the electrician installs a 15/20A fuse if a relay plus auxillary harness is used. This is a must for safety.

4. What should be the output of teh relay to match supersonics? (Any particular brand)

Not to worry, the brand of relay is irrelevant. They all work together.

5. To install the new relay will wires be cut? If not how will it be connected?

They MAY have to change the factory connector(s). It depends on your car and the horns you wish to install.

[Sheel]

Originally Posted by captain.torque

Hi experts -- PLEASE HELP !!!

I plan to get Roots Megasonic installed in my Vitara Brezza. I have some queries

Before buying one, please do make sure, there is space to fit them, they are the biggest horns you will come across.

I have the Hella Red Grills & Megasonics and just no one notices the red grills and I am forced to use the megasonics. It is very loud and I do avoid using it in the city.

But people are weird, they scoot off only after hearing the megasonics as they can't withstand its sound.

[COMMUTER]

I have added a Hella Single trumpet to my Ford Figo 1.5D. I have honked only once after installing them and thus haven't honked enough to comment in detail about the sound. It's loud enough to make me refrain from trying it in town. I am planning to take a long trip this weekend and will be able to use it often enough to comment upon.

I have bought two sets Bosch Symphony horns too. One set is to be installed in my Dad's Ameo 1.5D and the remaining one set is to be split between the Honda Cliq and TVS Scooty at home. I will update on the planned installations once they are done. Any inputs regarding the intended installation are welcome.

[saurabh2711]

Originally Posted by COMMUTER

I have added a Hella Single trumpet to my Ford Figo 1.5D.

Hella Single trumpet : wow : 115 DB of sound output. It is enough to blow someone away. That is definitely too high within city limits.

My 2 cents:
>> Try fitting it in a way, where the mouth of the trumpet is parallel to the car's body. Currently it looks perpendicular to the body.
>> Keep the air compressor away from hot air intake. Hot air will blow your trumpets. Don't know how to explain , but will tear the membrane which is responsible for making the "noise" (inside trumpet). I hope I am able to communicate my thoughts on second point.

Will be more effective then. Specially for errant two/three wheelers.

If at all you have to use it within city limits (hope you don't) & you have a dash cam, post some Videos of people's reaction once used. Sincere Apologies for being sadistic, but some people learn things the hard way.

[COMMUTER]

Originally Posted by saurabh2711

>> Keep the air compressor away from hot air intake. Hot air will blow your trumpets. Don't know how to explain , but will tear the membrane which is responsible for making the "noise" (inside trumpet). I hope I am able to communicate my thoughts on second point.
.

Thank you for the heads up. This point will linger in my mind and I will keep at finding the opportunity to set it right. Reworking is a must going by what you have said.

I have bought a Viofo through a friend coming from US and will get it from him here today. I will post some clips.

Regarding the in-town blasts, yes they are tempting but I am worried about the presence of toddlers. I did give a blip or two at times when people are stubbon, after a quick glance around for tiny tots. They are effective.

[Sheel]

Which is the loudest trumpet horn available and the one which will last? Hella Chrome ones with relay?

[R2D2]

Originally Posted by Sheel

Which is the loudest trumpet horn available and the one which will last? Hella Chrome ones with relay?

Hella Chromes are definitely among the loudest and sharpest @ 112 dB in trumpet types and at the same time are probably the most expensive.

You should definitely fit a relay if yours is a single horn vehicle. Or, if your factory fitted dual horn system consumes less than 5A each.

Fit an auxiliary harness for best performance. These consume 5 A each. Most factory horns are 2-4 A.

[Sheel]

Originally Posted by R2D2

probably the most expensive.

Most expensive might be of the ones which come as OE in Endeavor, at around Rs. 6,000+. Creta ones cost a shade under 3K. I am sure the Skoda/VW OE will cost above 6K for sure.

You should definitely fit a relay if yours is a single horn vehicle. Or, if your factory fitted dual horn system consumes less than 5A each.

Unsure if the vehicle has one horn or double [Swift ZXI+] but have ordered the Hella's wiring harness as well as relay. https://www.amazon.in/gp/product/B00...?ie=UTF8&psc=1

Similarly, in my Scorpio 4X4, I have fitted a relay for Roots Megasonics.

[R2D2]

Originally Posted by Sheel

Most expensive might be of the ones which come as OE in Endeavor, at around Rs. 6,000+. Creta ones cost a shade under 3K. I am sure the Skoda/VW OE will cost above 6K for sure.

They would be more expensive if you buy the same horns from the dealer. For e.g. my car's OEM horns (Roots Smarttone, standard with most Toyotas in India) are about Rs 1500 for a pair, excl. taxes, labour/fitting, from Toyota and Rs 580 at Amazon India.

Unsure if the vehicle has one horn or double [Swift ZXI+] but have ordered the Hella's wiring harness as well as relay. Similarly, in my Scorpio 4X4, I have fitted a relay for Roots Megasonics.

I ordered the Hella harness too it is very well made. But it needs changes to the pin connections as detailed here: Hella Harness schematic

[yikes6633]

Dear BHPians, I want to replace the meek OEM horn on my Maruti Alto without actually tampering with any wiring or the setup.

I am thinking of purchasing a single horn, the Roots Megasonic, the Lo tone or only the Hi tone, any one only and replacing it in place of the original one.

If I do the above will I still need a relay?

Also, will this require any other modifications in fitting?

I intend to just unplug the existing 2 wires on the original horn, remove the original horn, then fit the single Megasonic horn and plug in the 2 wires.

Please advise if this is feasible and if I need to do any other changes.

Thanks

[panky12345]

Originally Posted by yikes6633

I intend to just unplug the existing 2 wires on the original horn, remove the original horn, then fit the single Megasonic horn and plug in the 2 wires.

Thanks

Using either one of Hi or Lo would not make any sense as it would not solve the desired purpose. Use you may use a splitter, plug the splitter in original wire and wire the pair to use in dual horns.

[yikes6633]

Got over my hesitation of using twin horns (wanted to avoid as we need to make changes to the stock wiring set up).

I looked up DIY videos of replacing the stock horns to much better horns.

I went to JC road in Bangalore and looked up a variety of horns. I chose not to buy the Paaa horns (skoda type/trumpet horns) as a lot of two wheelers and a lot of taxis have these horns installed.

I had shortlisted the twin horns FC4 from Bosch, K95 from Minda and the Vibrosonic from Roots. Finally zeroed in on the Roots Vibrosonic.

I also purchased a Roots 4 pin horn relay, a fuse link junction box, electric contact pins, an additional horn fitment bracket, wires and split wires for twin horns.

Yesterday, I spent 2 hours to fix the horn and I am extremely happy with it. I did the whole thing myself and it sure helped boost my confidence in DIY.