Can anyone recommend a good amp to power 4 of these speakers

The sensitivity on these speakers are only 85.5 dB and are 100 watts. You definitely need an amp with some power to push 4 of them. If you use these as stereo speakers I recommend a Sherwood RX5502 or look for an older Pioneer VSX series made in the 90's or any Pioneer SX series amps on EBay. SX may cost more but VSX is great stuff. Not the new VSX crap. Get the old stuff cause they have bigger transformers and power supplies and they are true solid state amps. No digital gizmos to screw up the sound. The VSX is a surround sound amp BUT they have stereo connections for 4 separate speakers and you can A/B them. The EQ on those amps are pretty good as well.

It is possible to use with my laptop? I didnt see any 3.5 mm connector. What do I have to do?

Is your 3.5 mm connector stereo?, even if it is I'm guessing there are inexpensive adapters (probably @ Radio Shack) that will convert a 3.5 mm plug to either 2 wire (mono) or 4 wire (stereo). Pay attention to wire polarities (+ & -) as traditional 2 wire speakers connections are + & - , even if the wires are connected backwards the speakers will still work-- result you will be driving them backwards & they will not sound as clear. Solution, just reverse the wires. Good luck

Will these survive being pressure-washed (assuming the mounting bracket is strong enough)?

I gotta' ask...WHY would you pressure wash these or any other speakers???

if i want to mount them on my bedroom ceiling how would i power them?

Stereo speakers don't need a power supply. You simply connect them to your stereo system/receiver via speaker wires.

Dual Electronics Lu43pb 4 3 Way High Performance Outdoor Indoor

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Description

🎶 Elevate every space with sound that commands attention

EFFORTLESS SETUP - Plug-and-play wired design for quick installation anywhere—no tech headaches.
PRECISION 3 WAY AUDIO - Experience crystal-clear highs, rich mids, and powerful bass in perfect harmony.
EXPANDABLE SOUND SYSTEM - Pair with Dual’s DBTMA100 Bluetooth amplifier (sold separately) for immersive multi-room audio.
ROBUST WEATHER PROTECTION - UV-resistant resin and ABS enclosure ensure your speakers thrive through every season.
VERSATILE INDOOR OUTDOOR USE - Seamlessly elevate your soundscape from patio to poolside with weather-resistant durability.

The Dual Electronics LU43PB is a 4-inch, 3-way wired speaker system designed for both indoor and outdoor environments. Featuring a weather-resistant UV-coated ABS enclosure, it delivers expansive stereo sound with deep bass and clear highs. Ideal for patios, pools, garages, and more, it supports easy installation and pairs seamlessly with Dual’s Bluetooth amplifier for enhanced audio performance. Backed by a 2-year warranty when registered, it’s a durable, high-performance audio solution for modern living spaces.

Specifications

ASIN	B00081NX5U
Additional Features	Bass Boost, Multi Room Audio, Waterproof
Age Range Description	Adult
Antenna Location	For Outdoor Use
Audio Driver Size	5.25 Inches
Audio Driver Type	Dynamic Driver
Audio Output Mode	Stereo
Best Sellers Rank	#5,145 in Electronics ( See Top 100 in Electronics ) #7 in Outdoor Speakers
Brand	Dual Electronics
Built-In Media	Speakers
Color	Black
Compatible Devices	Desktop, Home Theater, Laptop, MP3 Player, Smartphone, Tablet
Connectivity Protocol	Bluetooth
Connectivity Technology	Wired
Control Method	Remote
Controller Type	Corded Electric
Customer Package Type	Standard Packaging
Customer Reviews	4.3 out of 5 stars 10,172 Reviews
Enclosure Material	Plastic, Polypropylene
Frequency Response	100 Hz
Global Trade Identification Number	00827204209967, 08272042099676
Impedance	4 Ohms
Is Electric	Yes
Is Waterproof	False
Item Dimensions D x W x H	5.25"D x 5.25"W x 8.25"H
Item Type Name	outdoor-home-speakers
Item Weight	2.8 Pounds
MP3 player	No
Manufacturer	Dual
Maximum Range	15 Meters
Model Name	LU43PB
Model Number	LU43PB
Mounting Type	Wall Mount
Number Of Circuits	3
Number of Audio Channels	3.0
Number of Items	1
Number of Power Levels	1
Power Source	Corded Electric
Series Number	43
Speaker Maximum Output Power	100 Watts
Speaker Size	4 Inches
Speaker Type	Bookshelf
Specific Uses For Product	For Outdoor Use
Subwoofer Connectivity Technology	Wired
Subwoofer Diameter	4 Inches
Tweeter Diameter	0.78 Inches
UPC	765042396299 072931287393 073581026646 069060209334 638362955845 696582499907 999992221244 014444741443 190283071283 617407413373 767887450365 734911306097 100177408651 853585408736 014444954263 523160393763 012302121802 749860035660 675904088944 734911382183 404615966513 031112547206 768421121512 731215351860 696582126582 827204209967 163120549559 734911371880 782386057686 962327397945 1519031564…
Unit Count	2.0 Count
Warranty Description	Manufacturers Warranty
Warranty Type	Limited
Water Resistance Level	Water Resistant
Wireless Technology	Bluetooth
Woofer Diameter	4 Inches

Reviews

W**2

10.02.2023

B**G

26.01.2014

T**7

28.10.2014

A**N

4.02.2026

S**T

23.12.2017

C**A

10.04.2026

J**N

25.04.2026

B**T

27.07.2025

M**K

26.10.2019

J**R

18.11.2020

U**5

19.10.2024

M**R

9.07.2025

D**N

11.01.2020

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Dual Electronics LU43PB 4" 3-Way High Performance Outdoor Indoor Wired Speakers | Effortless Set Up | Home, Pool, Patio, Garage Use | Weather & UV Resistant | Expansive Stereo Sound Coverage | Black

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