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 3 Way High Performance Outdoor Indoor Speakers

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Description

🎶 Elevate your space with sound that moves you—indoors or out!

COMPACT POWERHOUSE DESIGN - Lightweight 2.8 lbs speakers pack a punch with 100W peak power in a sleek, space-saving form.
BUILT TO BRAVE THE ELEMENTS - UV-resistant resin and ABS enclosure ensure your speakers withstand rain, sun, and heat without missing a beat.
SEAMLESS BLUETOOTH CONNECTIVITY - Wirelessly stream your favorite playlists from any device up to 15 meters away—no cables, no hassle.
IMMERSIVE 3 WAY AUDIO EXPERIENCE - Crystal-clear highs, rich mids, and deep bass for studio-quality sound anywhere.
EFFORTLESS FLEXIBLE INSTALLATION - Swivel brackets with 120° range let you direct sound exactly where you want it—patio, poolside, or garage.

The Dual Electronics LU43PB speakers deliver powerful 100W peak audio through a precision 3-way design, optimized for rich bass and expansive sound dispersion. Engineered with weather-resistant UV-coated resin and ABS housing, they thrive in any environment—poolside, patio, or garage. Lightweight and compact, these speakers feature versatile 120° swivel brackets for perfect sound direction and Bluetooth connectivity for seamless wireless streaming. Ideal for millennials seeking premium sound with effortless style and durability.

Specifications

ASIN	B00081NX5U
Additional Features	Bass Boost, Hi Res Audio, USB Port
Age Range Description	Adult
Antenna Location	For Outdoor Use
Audio Driver Size	5.25 Inches
Audio Driver Type	Dynamic Driver
Audio Output Mode	Stereo
Audio output mode	Stereo
Battery Average Life	6 Hours
Best Sellers Rank	#6,528 in Electronics ( See Top 100 in Electronics ) #10 in Outdoor Home Audio Speakers
Brand	Dual
Built-In Media	Speakers
Color	black
Compatible Devices	Desktop, Home Theater, Laptop, MP3 Player, Smartphone, Tablet
Compatible with Vehicle Type	Car
Connectivity Protocol	Bluetooth
Connectivity Technology	Wired
Connectivity technology	Wired
Control Method	Remote
Controller Type	Button
Customer Package Type	Standard Packaging
Customer Reviews	4.3 out of 5 stars 15,416 Reviews
Enclosure Material	Plastic Polypropylene
Frequency Response	100 Hz
Frequency response	100 Hz
Global Trade Identification Number	00827204209967, 08272042099676
Impedance	4 Ohms
Is Electric	Yes
Is Waterproof	True
Item Dimensions D x W x H	13.3D x 13.3W x 21H centimeters
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
Mounting type	Wall Mount
Number Of Circuits	3
Number of Audio Channels	2.0
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	Outdoor
Speaker maximum output power	100 Watts
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…
Warranty Description	Manufacturers Warranty
Warranty Type	Limited
Water Resistance Level	Water Resistant
Wireless Technology	Bluetooth
Woofer Diameter	4 Inches

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Sold byAmazon SeychellesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Dual Electronics LU43PB 3-Way High Performance Outdoor Indoor Speakers with Powerful Bass pair, Bluetooth

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