Twin horns

macafee2 · 30th September 2021, 17:08

One of my horns has packed up and the other, well, its useless.
I am sure I have a pair of horns in a box somewhere but if not could anyone tell be what I should be looking for when buying twin horns?
I think one is high tone and one low tone but apart from that and being 12v I know nothing.

Cars with one horn, is it the high tone, low tone or are different?

thanks

macafee2

T-Cut · 1st October 2021, 08:39

As I understand it, single horn models have the higher note one. That's why they sound a bit too silly for a large car. The best route I found, was to get a pair of matched twin horns from eBay. The 'snail shell' type will be a direct swap. Their notes only differ by 10-20Hz which gives them a more suitable tone when sounding together. Virtually any 12v twin set will do. Wire them in parallel.

Example: https://www.ebay.co.uk/itm/263016185...kAAOSwKKxg9U99

These are cheap and cheerful, but prone to internal rusting over a few years. I opened them up and gave the insides a good spray of WD40. Otherwise, buy a more expensive set.
TC

macafee2 · 1st October 2021, 09:11

Quote:

Originally Posted by T-Cut

As I understand it, single horn models have the higher note one. That's why they sound a bit too silly for a large car. The best route I found, was to get a pair of matched twin horns from eBay. The 'snail shell' type will be a direct swap. Their notes only differ by 10-20Hz which gives them a more suitable tone when sounding together. Virtually any 12v twin set will do. Wire them in parallel.

Example: https://www.ebay.co.uk/itm/263016185...kAAOSwKKxg9U99

These are cheap and cheerful, but prone to internal rusting over a few years. I opened them up and gave the insides a good spray of WD40. Otherwise, buy a more expensive set.
TC

Thank you Arctic. Glad you gave me a link as I did not know what a snail type horn was.

macafee2

ceedy · 1st October 2021, 11:37

I had a pair that look like these.... OK for a while then packed up after about 2-3 years , found then all rusted up too

been back on OEM and even one of them has died now

As T-Cut says Spend a bit nore and get a quality pair

eg ..

FIAMM or Bosch Black Fanfare Air Horn 0986AH0503

C

Quote:

Originally Posted by T-Cut

As I understand it, single horn models have the higher note one. That's why they sound a bit too silly for a large car. The best route I found, was to get a pair of matched twin horns from eBay. The 'snail shell' type will be a direct swap. Their notes only differ by 10-20Hz which gives them a more suitable tone when sounding together. Virtually any 12v twin set will do. Wire them in parallel.

Example: https://www.ebay.co.uk/itm/263016185...kAAOSwKKxg9U99

These are cheap and cheerful, but prone to internal rusting over a few years. I opened them up and gave the insides a good spray of WD40. Otherwise, buy a more expensive set.
TC

kelvo · 1st October 2021, 14:37

The OEM horns for the twin horns are Hella, and I think 400Hz and 500Hz frequencies. The single horn cars it was only low tone that was fitted.

https://www.ebay.co.uk/itm/265185635...AAAOSwPUNguNpS

I would stick with OEM horns, rather than go for some cheap horns from China.

macafee2 · 1st October 2021, 17:39

Quote:

Originally Posted by ceedy

I had a pair that look like these.... OK for a while then packed up after about 2-3 years , found then all rusted up too

been back on OEM and even one of them has died now

As T-Cut says Spend a bit nore and get a quality pair

eg ..

FIAMM or Bosch Black Fanfare Air Horn 0986AH0503

C

Fiamm, I remember them from years ago

macafee2

macafee2 · 1st October 2021, 17:41

Been into the garage and have found a pair of horns from a Rover 75. Just have to check they work.

macafee2

macafee2 · 7th October 2021, 09:24

oh, just taken the bumper off and the Tourer which I thought had two horns only has 1 horn. My saloon has two.

macafee2

Vossy · 7th October 2021, 10:07

I have the Fiamm ones fitted, my original horn was the little gentle one from the factory, these are very loud, I've had them fitted for a couple of years and can recommend them.

kelvo · 8th October 2021, 21:22

Quote:

Originally Posted by macafee2

oh, just taken the bumper off and the Tourer which I thought had two horns only has 1 horn. My saloon has two.

macafee2

That would be project drive deletion then. My 04 built ZT only had the single horn when I got it, but I soon added the second one with the correct loom.

It does take penny pinching to the limit to remove one of the horns to leave a car like a 75 sounding more akin to Noddy's car.

I think the OEM horns are plenty loud and melodious enough.

30th September 2021, 17:08	#1
macafee2 This is my second home Rover 75 Saloon & Tourer Join Date: Sep 2012 Location: Lincoln Posts: 14,911 Thanks: 1,630 Thanked 3,032 Times in 2,181 Posts	Twin horns One of my horns has packed up and the other, well, its useless. I am sure I have a pair of horns in a box somewhere but if not could anyone tell be what I should be looking for when buying twin horns? I think one is high tone and one low tone but apart from that and being 12v I know nothing. Cars with one horn, is it the high tone, low tone or are different? thanks macafee2

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1st October 2021, 08:39	#2
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,751 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	As I understand it, single horn models have the higher note one. That's why they sound a bit too silly for a large car. The best route I found, was to get a pair of matched twin horns from eBay. The 'snail shell' type will be a direct swap. Their notes only differ by 10-20Hz which gives them a more suitable tone when sounding together. Virtually any 12v twin set will do. Wire them in parallel. Example: https://www.ebay.co.uk/itm/263016185...kAAOSwKKxg9U99 These are cheap and cheerful, but prone to internal rusting over a few years. I opened them up and gave the insides a good spray of WD40. Otherwise, buy a more expensive set. TC

1st October 2021, 14:37	#5
kelvo Gets stuck in MG ZT 190 SE Join Date: Oct 2017 Location: Chatham, Kent Posts: 569 Thanks: 22 Thanked 163 Times in 135 Posts	The OEM horns for the twin horns are Hella, and I think 400Hz and 500Hz frequencies. The single horn cars it was only low tone that was fitted. https://www.ebay.co.uk/itm/265185635...AAAOSwPUNguNpS I would stick with OEM horns, rather than go for some cheap horns from China.

1st October 2021, 17:41	#7
macafee2 This is my second home Rover 75 Saloon & Tourer Join Date: Sep 2012 Location: Lincoln Posts: 14,911 Thanks: 1,630 Thanked 3,032 Times in 2,181 Posts	Been into the garage and have found a pair of horns from a Rover 75. Just have to check they work. macafee2

7th October 2021, 09:24	#8
macafee2 This is my second home Rover 75 Saloon & Tourer Join Date: Sep 2012 Location: Lincoln Posts: 14,911 Thanks: 1,630 Thanked 3,032 Times in 2,181 Posts	oh, just taken the bumper off and the Tourer which I thought had two horns only has 1 horn. My saloon has two. macafee2

7th October 2021, 10:07	#9
Vossy Why? ... MG ZT+ Cdti Auto saloon. Join Date: Jul 2014 Location: Blockeswich, South Staffs Posts: 1,548 Thanks: 173 Thanked 483 Times in 330 Posts	I have the Fiamm ones fitted, my original horn was the little gentle one from the factory, these are very loud, I've had them fitted for a couple of years and can recommend them.