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.

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Description

🎶 Elevate your soundscape—wherever life takes you.

COMPACT LIGHTWEIGHT - Easy to install and move at just 1.27 kg, fitting effortlessly into any space.
POWERFUL 100 W PEAK OUTPUT - Experience crisp, room-filling sound whether indoors or outdoors.
PRECISION 3 WAY AUDIO DRIVERS - Polypropylene cone midrange, Piezo tweeter & Polyelite woofer deliver rich, balanced sound.
DURABLE WEATHER RESISTANT DESIGN - Built to withstand the elements so your vibe never stops.
SEAMLESS INDOOR OUTDOOR VERSATILITY - Perfect for your home office, patio, or weekend gatherings.

The Dual LU43PB is a 100-watt peak, 3-way indoor/outdoor speaker pair featuring a weather-resistant design and precision drivers for high-fidelity sound. With a 4-inch subwoofer, 40mm midrange, and 20mm Piezo tweeter, it delivers clear, balanced audio up to 15 meters. Lightweight and versatile, it’s ideal for professional millennials seeking premium sound in any environment.

Specifications

Model Name	LU43PB
Speaker Type	Outdoor
Special Feature	Subwoofer
Recommended Uses For Product	Indoor,Outdoor
Compatible Devices	Desktop, Laptop, MP3 Player, Television
Subwoofer Diameter	4 Inches
Surround Sound Channel Configuration	4 1
Colour	black
Item Weight	2.8 Pounds
Impedance	4 Ohm
Is Waterproof	false
Maximum Range	15 metres
Control Method	Touch
Wireless Communication Technology	Bluetooth
Speaker Size	4 Inches
Power Source	ac
Tweeter Diameter	1 Inches
Audio Driver Type	Piezoelectric Driver
Includes MP3 player?	No
Series number	43
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 782386057686 734911371880 151903156407 962327397945 999990002746 763615917148
Global Trade Identification Number	00827204209967, 08272042099676
Manufacturer	DUAL
Model	LU43PB
Model Year	2012
Product Dimensions	13.46 x 13.46 x 21.08 cm; 1.27 kg
Item model number	LU43PB
Special Features	Subwoofer
Audio input compatible with the item	Auxiliary
Speakers Nominal Output Power	50 Watts
Noise Level	88 dB
Speaker connectivity	Wired
Audio Wattage	100 Watts
Wattage	100 Watts
Batteries Included	No
Batteries Required	No
Includes Rechargeable Battery	No
Includes AC Adapter	No
Includes remote	No
Item Weight	1 kg 270 g

Reviews

V**U

Good quality product

Am purchased 3 pairs for my DENON AVR 1513 to set up a 5.0 , good sound quality , also sturdy iron mount, sturdy grill and outer backlite materials , didn't notice any sound quality loss, good option for my DENON AVR

1.02.2022

S**R

Good

26.10.2019

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