Seismic Audio GH28L - Pair of Passive Dual 8 Inch 2-Way PA/DJ Loudspeaker Cabinets - 900 Watt Full Range PA/DJ Band Live Sound Speakers

The GH28L pair gives you solid mains without the sticker shock. These passive PA speakers pack dual 8-inch woofers and a 1-inch horn tweeter into compact, roadworthy cabinets that actually fit in your van alongside everything else. At 26 pounds each with recessed handles, you can load them solo without throwing out your back.

Each cabinet handles 450 watts RMS with peaks up to 900 watts, giving you the headroom for those moments when the drummer decides to really go for it. The dual 8-inch configuration delivers fuller midrange than single-driver boxes in this price range, while the wide-dispersion horn keeps vocals clear even when you're stuck with weird stage angles. The 4-ohm impedance and 93 dB sensitivity mean they'll work efficiently with most power amps you throw at them.

The tuned bass reflex ports squeeze real low-end response out of those 8-inch drivers, covering 50 Hz to 20 kHz — enough bandwidth for most gigs without needing a subwoofer. The MDF cabinets are wrapped in carpet covering with steel mesh grilles that can handle the inevitable bumps and scrapes of load-in life. Connection options include both 1/4-inch TS jacks and binding posts, so you can wire them however your setup demands.

These speakers handle small to medium venues up to 200 people indoors — think church gigs, school auditoriums, club shows, and rehearsal spaces. For outdoor events, expect solid coverage for crowds up to 150. You'll need an external amplifier, but that also means you can upgrade your power later without replacing the whole system.

Bottom line: If you need reliable mains that won't break the budget or your back, the GH28L pair delivers professional sound in a practical package that fits real-world gigging demands.

Technical Specifications

• Power (Peak): 900 Watts per cabinet
• Power (RMS): 450 Watts per cabinet
• Amplifier Type: Passive (requires external amplifier)
• Woofer: Dual 8" ribbed cone woofers
• HF Driver: 1" horn tweeter (75W, wide dispersion)
• Frequency Response: 50 Hz - 20 kHz
• Sensitivity: 93 dB
• Impedance: 4 Ohms
• Inputs: 1/4" TS jack, binding posts
• Cabinet: MDF with tuned bass reflex port
• Covering: Black carpet with plastic corners
• Dimensions: 26.25" x 11.25" x 9.5" each
• Weight: 26 lbs per cabinet
• What's in Box: Pair of GH28L speaker cabinets
• Warranty: One year
• Recommended For: Band PA, DJ mains, church sound

Frequently Asked Questions

What amplifier power do I need for the GH28L speakers?

Each cabinet handles 450 watts RMS at 4 ohms, so you'll want an amplifier delivering at least 450 watts per channel into 4 ohms for full power. A stereo amp rated for 500-600 watts per channel into 4 ohms gives you clean headroom without strain. The 93 dB sensitivity means they'll get plenty loud even with moderate amplifier power.

Do I need a subwoofer with these speakers?

The dual 8-inch woofers provide solid bass response down to 50 Hz, which covers most music and vocal applications without a sub. However, if you're doing DJ work with electronic music or want more low-end impact for larger venues, adding a powered subwoofer will enhance the full-range experience and let you push the mains harder.

How do these compare to powered speakers in this price range?

The GH28L gives you more flexibility since you can choose your own amplifier and upgrade power later without replacing the cabinets. Passive speakers also tend to be more reliable for mobile use since there are fewer electronics to fail. However, you'll need to factor in amplifier cost and the extra cable run from amp to speakers.

What cables do I need to connect these speakers?

You'll need speaker cables from your amplifier to each cabinet. Use 1/4-inch TS to 1/4-inch TS speaker cables, or connect directly to the binding post terminals with bare wire or banana plugs. For most setups, 14-gauge speaker cable works fine for runs under 50 feet.