When your sound system needs to hit harder and reach deeper, these Tremor 18 powered subs deliver the low-end punch that makes people feel the music. Each cabinet packs an 18-inch woofer with a serious 500-watt Class D amp, giving you the kind of bass response that fills a room and keeps dancers moving. At 98dB sensitivity, they're efficient enough to get loud without straining, but with enough headroom to handle those peak moments when the kick drum and bass guitar lock in.

What sets these apart is the built-in satellite amplification — each sub provides 150 watts peak across two additional channels to power your main speakers. This means fewer amps in your rack, fewer power cables to run, and simpler system management when you're setting up in the dark. The adjustable crossover runs from 40Hz up to 300Hz, so whether you're crossing over to full-range tops or small satellites, you can dial in the handoff point that works for your system.

At 84 pounds each, they're no joke to move, but the recessed handles make load-in manageable, and the black carpet finish with metal corners will survive the van rides and venue load-ins. The top-mounted pole sockets let you stack your mains right on top if floor space is tight. For DJs pushing dance music to 400 people or bands that need serious low-end extension in mid-sized venues, this pair gives you the foundation your system needs.

The connectivity is straightforward — combo XLR/quarter-inch inputs and outputs for signal, plus Speakon and banana plug outs for your satellite speakers. You can daisy-chain additional subs if you need to scale up later. The clip indicators keep you from pushing too hard and frying anything mid-gig.

Bottom line: These are workhouse powered subs for mobile DJs, bands, and installed systems that need professional bass response without the complexity of separate amplifiers and crossovers.

Technical Specifications

• Power (RMS): 500 watts
• Amplifier Type: Class D
• Woofer: 18-inch, 90 oz magnet, 3-inch voice coil
• Sensitivity: 98 dB
• Impedance: 8 ohms
• Low Pass Filter: 40Hz - 300Hz adjustable
• Satellite Power Output: 150 watts peak x 2 channels
• Inputs: XLR & 1/4-inch combo jacks (2)
• Outputs: XLR & 1/4-inch combo jacks (2), Speakon (2), Banana (2)
• Connectivity: Daisy-chainable
• Cabinet: Black carpet, metal corners, recessed handles
• Pole Mount: Metal speaker pole socket (top)
• Dimensions: 26.5"H x 22.25"W x 24.25"D
• Weight: 84 lbs per cabinet
• What's in Box: Pair of powered subwoofers, power cords
• Warranty: One year
• Recommended For: DJ systems, live bands, church sound, club installations

Frequently Asked Questions

Can I power my main speakers directly from these subs?

Yes, each Tremor 18 has built-in satellite amplification providing 150 watts peak per channel across two outputs. This eliminates the need for separate power amps in smaller systems. Use Speakon or banana plug connections to your main cabinets and adjust the satellite volume controls to balance your system.

Where should I set the crossover frequency?

Start around 80-100Hz for most applications. If you're running full-range mains with decent bass response, try 60-80Hz. For smaller satellite speakers that roll off early, you might need to go up to 120-150Hz. The wide range (40-300Hz) gives you flexibility to match whatever tops you're running.

Will this pair handle a 300-person dance floor?

Absolutely. The dual 500-watt RMS amps provide plenty of headroom for electronic music and hip-hop with serious bass content. For 300 people dancing, you'll have enough output with room to spare. The 98dB sensitivity means they get loud efficiently without straining the amplifiers.

Do I need any special cables or adapters?

Just standard audio cables — XLR or quarter-inch from your mixer to the sub inputs, then Speakon or banana plug speaker cables from the sub outputs to your main speakers. Power cords are included. The combo input jacks accept either XLR or quarter-inch, so you're covered regardless of your mixer's output configuration.