The Richter-12 pair delivers professional-grade replacement drivers for musicians, DJs, and sound engineers looking to rebuild or upgrade their 12" PA cabinets. These woofers handle the demanding midrange and bass frequencies that define your live sound performance.

Each driver pushes 250 watts RMS with 500-watt peak handling, giving you the headroom needed for dynamic live performances without distortion. The 98 dB sensitivity rating means you get more volume per watt, making these drivers efficient partners for both tube and solid-state amplifiers.

The 3-inch voice coil and 50-ounce magnet structure provide the control needed for tight bass response and clear midrange reproduction. The die-cast aluminum chassis eliminates flex under high power, while the paper cone with cloth surround delivers the natural warmth that musicians prefer over synthetic materials. At 8 ohms impedance, these drivers work with virtually any amplifier or powered mixer setup.

These woofers excel in vented enclosures for full-range PA applications, stage monitors, or bass guitar cabinets. They're rated for venues up to 200-300 people when properly enclosed and powered. The 55 Hz to 5 kHz frequency response covers the fundamental range where vocals and instruments live.

Installation requires standard mounting hardware and speaker wire connections - no special tools or cables needed. Each pair ships ready to drop into your existing cabinets.

Seismic Audio backs every Richter-12 pair with a one-year warranty and fast shipping to get your rig back up and running.

Technical Specifications

Frequently Asked Questions

What size venues can these drivers handle?

When properly enclosed in vented cabinets and powered with adequate amplification, the Richter-12 pair can cover venues up to 200-300 people. For larger spaces, you'll want multiple cabinets or consider adding subwoofers for extended low-end coverage. The 98 dB sensitivity rating means they'll get loud without requiring massive amplifier power.

Can I use these drivers to replace speakers in my existing PA cabinets?

Yes, these are direct replacement drivers for most 12" PA cabinets, provided your existing enclosure is designed for 8-ohm drivers. Check your cabinet's internal volume and port tuning - these work best in vented enclosures rather than sealed boxes. Standard mounting holes and depth should fit most commercial PA cabinet designs.

What amplifier power do I need to drive these properly?

You'll want an amplifier that delivers 150-300 watts RMS per channel at 8 ohms to properly drive these drivers. Going below 150 watts means you won't get their full potential, while exceeding 300 watts risks damage if you're not careful with gain settings. Most powered mixers and PA amplifiers in this range work perfectly.

Do these work for bass guitar applications?

Absolutely - the Richter-12 drivers excel in bass guitar cabinets, especially when you want that classic paper cone warmth. The 55 Hz low-end response covers the fundamental frequencies of a 4-string bass, while the 5 kHz upper limit captures the attack and harmonics that cut through a band mix. Many players prefer them over more sterile synthetic cone drivers.

What's the difference between these and full-range PA speakers?

These are raw drivers only - you're getting the speaker element without the cabinet, crossover, or tweeter. You'll need to install them in proper enclosures and add a high-frequency driver if you want full-range PA performance. If you need complete speakers ready to use, consider Seismic Audio's powered PA speakers instead.

WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer. For more information, go to: www.P65Warnings.ca.gov