Will hella 002768821 24v horns to a dc36v/48v battery using a dc24v20a 480w step down transformer be the correct amps and watts for these horns?

Transformers only work with AC not DC. You could use a voltage regulator or a series resistor to reduce the applied voltage to 24V. Or, with 48 volts DC you could just wire them in series so that they each get only 24 volts. The current (amps) will take care of itself (I=V/R), about 5 Amps, I'm told.

Will this fit a 2016 subaru legacy? please only yes or no. no shoulds.

This isn't a yes/no question. It'll fit any car so long as you can find a proper place on the frame to mount them. Mine came with only one high-tone horn. I had to find a place to mount the second. Look at videos of others doing it. You may need to drill, and you'll need to run one wire only as the negative runs through the frame.

why are there two ? can i just install one?

Some vehicles are outfitted with two of these, like my SUV. Yes, you could install just one, but I find myself wondering why you don't just by a single horn?

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HELLA 002768821 Black 92mm 24V Disc Horn Kit (Universal Fit)

Product ID: 32687101

Details

Brand
Hella
Color
Black
Fit Type
Vehicle Fit
Material
Alloy Steel
Voltage
24 volts

⚡24V high-voltage power

🔊113 dB piercing sound

🛠️M8 screw bracket fit

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Description

🚨 Sound the Alarm with HELLA – Be Heard, Be Safe!

BUILT FOR POWER USERS - Designed for 24V systems, perfect for commercial and off-road vehicles.
WEATHERPROOF RELIABLE - Water-resistant design keeps you safe rain or shine.
UNIVERSAL FIT ZERO HASSLE - M8 screw bracket and blade connectors ensure easy installation.
COMMAND ATTENTION INSTANTLY - 113 dB sound cuts through urban noise for ultimate safety.
PRECISION GERMAN ENGINEERING - Over 100 years of trusted HELLA quality and durability.

The HELLA 002768821 Black 92mm 24V Disc Horn Kit delivers a powerful 113 dB sound output engineered for 24V vehicle systems. Featuring a universal M8 screw bracket and blade-type connectors, it ensures easy installation and reliable performance. Built with durable alloy steel and plastic components, this horn meets strict ECE standards and is designed for long-lasting use in passenger cars, commercial, and off-road vehicles. Trusted for over a century, HELLA combines German precision with cutting-edge acoustic technology to guarantee safety and attention in critical driving situations.

Specifications

ASIN	B01EG18E1U
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#99,123 in Automotive ( See Top 100 in Automotive ) #5 in Musical Horns
Brand Name	Hella
Color	Black
Compatible with Vehicle Type	Passenger Car
Customer Reviews	4.5 4.5 out of 5 stars (120)
Fit Type	Vehicle Specific Fit
Global Trade Identification Number	04082300558906
Included Components	Horn
Item Type Name	002768821
Item Weight	0.49 kg
Manufacturer	HELLA
Manufacturer Part Number	3AM 002 768-821
Manufacturer Warranty Description	Limited 1 Year
Material Type	Alloy Steel, Metal, Plastic, Stainless Steel
Model Number	002768821
Noise Level	113 db
Number of Items	1
Number of Packs	1
OEM Equivalent Part Number	A100-323-TERBERG-BENSCHOP
Part Interchange Info	002768821
Style Name	High & Low Tone / 24 V
Unit Count	1 Count
Voltage	24 volts

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14391 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kyrgyzstan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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