does the crossover have to be installed or will a 50wpc head unit blow the tweeters?

The crossovers are what you are paying for. Proper frequencies to appropriate sized speakers is what allows higher volume with out distortion. You are better off using crossovers with CHEAP speakers than the best speakers in the world, pushing beyond their capabilities. The tweeters sound good at 3k and above. mids, (3") 315-4k and the 6.5" 315 Hz and below.

How do I know there are real focal speakers and not the counterfeit speakers that are going around?

The price would be the first indication. The only for sure way is to purchase from a authorized distributor. That is the only way to get the manufacturer warranty. There are difference with the packaging and a few other things. You can see examples on focal's website. Unfortunately, you will not know till you purchased them. If they are going to make fake speaker sets they will use pictures of real ones.

What are the frequency response of each speaker? The Focal website shows a graph, but no exact number.

2-80 watts RMS power range (160 watts peak) frequency response: 55-20,000 Hz sensitivity: 90 dB impedance: 4 ohms

Focal 165as3 3 Way Components | Desertcart Netherlands

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€ 467.88

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Sold byAmazon NetherlandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎶 Elevate your drive with sound that commands attention!

POWERFUL 160 W OUTPUT - Feel every beat with robust power designed to energize your daily drive.
SLEEK FLUSH MOUNT DESIGN - Seamlessly integrates into your car’s interior for a clean, professional look.
7 YEAR SPARE PART SUPPORT - Long-term reliability backed by Focal’s industry-leading warranty and parts availability.
LIGHTNING FAST 1 MS LATENCY - Experience near-instant audio response that keeps your music perfectly in sync.
IMMERSIVE 3 WAY AUDIO PRECISION - Separate woofer, midrange, and tweeter deliver crystal-clear sound layers for your car.

The Focal 165AS3 is a premium 3-way component speaker kit featuring a 16.5cm woofer, 8cm midrange, and 1-inch tweeter. Designed for car audio enthusiasts, it delivers 160 watts of power with ultra-low 1ms latency for crisp, immersive stereo sound. Its flush mount design and durable woven fiberglass enclosure ensure both style and longevity, supported by a 2-year warranty and 7 years of spare part availability.

Specifications

ASIN	B00II0WBXS
Antenna Location	Car
Audio Driver Size	16.5 Centimetres
Audio Driver Type	Dynamic Driver
Audio Latency	1 Milliseconds
Audio Output Mode	Stereo
Best Sellers Rank	53,977 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 7 in Built-In Car Speakers
Box Contents	2 Speakers/Speakers
Brand Name	Focal
Colour	BLACK
Compatible Devices	Smartphone, MP3 Player
Compatible with Vehicle Type	Car
Connectivity Protocol	Electric cable (wired connection)
Control Method	Touch
Customer Reviews	4.4 4.4 out of 5 stars (151)
Enclosure Material	Woven fibreglass, ABS
Frequency Response	55 Hz
Global Trade Identification Number	03544059750679
Is Waterproof	False
Item Dimensions D x W x H	10D x 10W x 10H centimetres
Item Weight	4.99 kg
MP3 player	No
Manufacturer	Focal
Maximum Range	30 Metres
Maximum Speaker Output Power (in watts)	160 Watts
Model Name	165AS3
Model Number	165AS3
Mounting Type	Flush Mount
Network Connectivity Technology	Wired
Number Of Circuits	3
Number of Audio Channels	2.0
Number of Items	1
Number of Power Levels	1
Power Source	Corded Electric
Product Features	Radio
Product Warranty	2 year manufacturer
Series Number	165
Speaker Size	6.5 Inches
Speaker Type	Woofer
Specific Uses For Product	Use in the car, use with smartphones
Subwoofer Connectivity Technology	Wired
Subwoofer Speaker Diameter	165 Millimetres
Tweeter Diameter	1 Inches
Warranty Type	Limited
Wireless Technology Type	Bluetooth
Woofer Driver Diameter	165 Millimetres

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