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 | Desertcart New Zealand

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Description

🎶 Elevate your drive with sound that commands attention!

POWERFUL 160 W OUTPUT - Feel every beat with robust power that transforms your car into a premium soundstage.
ULTRA LOW 1 MS LATENCY - Enjoy seamless audio synchronization for an immersive, lag-free listening experience.
SLEEK FLUSH MOUNT DESIGN - Integrates flawlessly into your vehicle’s interior for a clean, professional look that turns heads.
PRECISION TUNED 3 WAY SYSTEM - Experience crystal-clear highs, rich mids, and deep bass with a perfectly balanced 3-way speaker setup.
DURABLE FIBERGLASS ABS BUILD - Engineered for longevity and resilience, ensuring your sound system stays flawless mile after mile.

The Focal 165AS3 is a 6.5-inch 3-way component car speaker system delivering up to 160 watts of power with ultra-low 1ms latency. Featuring a durable woven fiberglass and ABS enclosure, it offers precise audio reproduction with adjustable tweeters and a sleek flush mount design, perfect for audiophiles seeking premium in-car sound performance.

Specifications

ASIN	B00II0WBXS
Additional Features	Multi-sport tracker
Amazon Bestseller	#833,234 in Automotive ( See Top 100 in Automotive ) #397 in Car Coaxial Speakers
Antenna Location	Structure
Audio Driver Size	6.5 Inches
Audio Driver Type	Dynamic Driver
Audio Latency	1 Milliseconds
Audio Output Mode	Stereo
Brand	Focal
Built-In Media	165AS3
Color	Black
Compatible Devices	Smartphone, MP3 player
Compatible with Vehicle Type	& SUV, Choose Your Car, Truck
Connectivity Protocol	Wired
Connectivity Technology	USB
Control Method	Remote
Controller Type	Corded Electricity
Customer Reviews	4.5 4.5 out of 5 stars (145)
Enclosure Material	Woven Fiberglass, ABS
Frequency Response	55 Hz
Global Trade Identification Number	03544059750679
Impedance	4 Ohms
Is Waterproof	False
Item Dimensions D x W x H	36.8D x 43.2W x 34H cm
Item Type Name	165AS3
Item Weight	4.99 kg
MP3 player	No
Manufacturer	Focal Press
Model Name	165AS3
Model Number	165AS3
Mounting Type	Flush Mount
Number Of Circuits	3
Number of Audio Channels	2.0
Number of Items	1
Number of Power Levels	3
Power Source	Corded Electric
Series Number	165
Speaker Maximum Output Power	160 Watts
Speaker Size	6.5 Inches
Speaker Type	Woofer
Specific Uses For Product	Automotive audio system, construction site
Subwoofer Connectivity Technology	Wired
Subwoofer Diameter	6.5 Inches
Tweeter Diameter	1 Inches
Warranty Type	Limited
Wireless Technology	Bluetooth
Woofer Diameter	6.5 Inches

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