What size hole/cutout needed to install?

4.25" inch hole is what I used.

I'm considering using these in a sweet 16 configuration. Where can I find the frequency response or, better yet, a frequency response profile graph?

I think you will find the specs at parts-express.com

will this fit in a 22 bronco?

i don't have a bronco. can't you just go to the bronco site and look? these are not very good speakers AT ALL, imo. i use them as replacement bookshelf speakers. can't handle much volume. good luck.

Grs 4fr 8 Full Range 4 1 2 Speaker Pioneer

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Rp796677

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Sold byAmazon IndonesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎶 Elevate your sound game with precision and style!

BUILT TO LAST - Quality GRS construction ensures durability and reliability
COMPACT POWERHOUSE - Perfect fit for sleek, space-conscious setups
EFFORTLESS UPGRADE - Drop-in replacement for Pioneer A11EC80-02F models
TRUE TO LIFE AUDIO - Natural paper cone delivers authentic sound clarity
PLUG PLAY VERSATILITY - Compatible with laptops, smartphones, and more

The GRS 4FR-8 is a 4.5-inch full-range speaker designed as a direct replacement for Pioneer A11EC80-02F drivers. It features extended bandwidth and high sensitivity for clear, natural sound reproduction, housed in a durable paper cone construction. Ideal for compact audio setups, this speaker supports stereo output with 8-ohm impedance and up to 200 watts power handling, making it a reliable choice for audiophiles seeking quality and value.

Specifications

ASIN	B00DVO1OYS
Additional Features	Portable
Age Range Description	Adult
Antenna Location	construction
Audio Driver Type	Dynamic Driver
Audio Output Mode	Stereo
Best Sellers Rank	#58,376 in Electronics ( See Top 100 in Electronics ) #369 in Speaker Parts & Components #626 in Car Coaxial Speakers
Brand	GRS
Built-In Media	1 Speaker
Color	black
Compatible Devices	Laptop, MP3 Player, Smartphone
Connectivity Protocol	Tool
Connectivity Technology	Auxiliary, Ethernet, HDMI, RCA, USB
Control Method	Touch
Controller Type	Touch Control
Customer Package Type	FFP
Customer Reviews	4.5 out of 5 stars 103 Reviews
Enclosure Material	Paper
Frequency Response	50 Hz
Impedance	8 Ohms
Is Waterproof	FALSE
Item Weight	2.1 Pounds
MP3 player	No
Manufacturer	GRS
Model Name	4FR-8
Model Number	A11EC80-02F
Mounting Type	Flush Mount
Number of Audio Channels	2.0
Number of Items	2
Power Source	Corded Electric
Speaker Maximum Output Power	200 Watts
Speaker Size	4.5 Inches
Speaker Type	Bookshelf
Specific Uses For Product	construction
Subwoofer Connectivity Technology	Wired
Subwoofer Diameter	8 Inches
Tweeter Diameter	1 Inches
UPC	844632091391
Warranty Type	Limited
Wireless Technology	No Wireless Communication Technology
Woofer Diameter	4.5 Inches

Reviews

B**R

12.05.2025

R**W

18.11.2025

C**H

30.12.2013

H**S

31.10.2024

B**S

18.08.2021

А**R

22.01.2023

O**N

23.04.2024

D**B

28.04.2023

G**I

21.06.2020

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