Can i used this for my mid voice or is it for bass only?

You should have a subwoofer to do this properly. I had a double 15" woofers with 10" horn and (4) 4" tweeters which was one tower by Rockville and used with a Rockville 18" subwoofer and it worked great.

What are all the components i need to connect this sub in a room 3.5mm? will someone link me them?

Your question doesn't make sense, using a 3.5mm connection? Will require a sub amplifier and most likely 3.5mm female to rca jack.

I'm planning to build 2 of this speakers in a speakerbox but wich amp can I use best to power the subs?

In response to the first answer: any 5000 watt amp would be excessive and ultimately would fry your two speakers...unless you want to wire 4 of these in a series-parallel wiring, 5000 watts is wwaaayyy too much.

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Description

🎧 Own the Night with Rockville’s Raw Power Subwoofer

MAGNET MUSCLE - Massive 107oz magnet and 3" 4-layer voice coil for distortion-free, high SPL output.
ROCK SOLID STABILITY - Linear progressive conex dual spider system guarantees consistent, punchy low frequencies.
UNMATCHED BASS POWER - 1800W peak / 900W RMS delivers earth-shaking low end for pro DJs and live venues.
PLUG PLAY PRO SETUP - Nickel-plated banana plug terminals for secure, hassle-free installation every time.
KEVLAR STRENGTH MEETS SONIC PRECISION - Kevlar-reinforced cone ensures durability without sacrificing crystal-clear bass.

The Rockville RVW1800P8 is a professional-grade 18" DJ subwoofer boasting 1800W peak power and a Kevlar-reinforced cone for durability and deep bass. Featuring a massive 107oz magnet and advanced dual spider system, it delivers clean, distortion-free low frequencies ideal for live sound and large venues. With nickel-plated banana plug terminals, it ensures easy, reliable connectivity for serious audio setups.

Specifications

Power Source	Corded Electric
Speaker Maximum Output Power	1800 Watts
Subwoofer Connectivity Technology	Wired
Connectivity Technology	Coaxial
Audio Driver Size	18 Inches
Audio Driver Type	Dynamic Driver
Item Weight	23 Pounds
Item Dimensions D x W x H	9"D x 19"W x 19"H
Unit Count	1.0 Count
Impedance	8 Ohm
Number of Audio Channels	3.0
Battery Charge Time	20 Hours
Speaker Size	18 Inches
Woofer Diameter	18 Inches
Controller Type	Voice control
Color	Black
Is Waterproof	FALSE
Audio Output Mode	Surround
Mounting Type	Plug Mount
Speaker Type	Surround Sound, Woofer
Additional Features	Radio
Recommended Uses For Product	For Surround Sound Systems, For Radio
Subwoofer Diameter	18 Inches

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