The SA-PLATE21 stainless steel wall plate delivers professional audio connectivity for permanent installations in studios, venues, and home theaters. This dual TRS jack solution eliminates cable clutter while providing reliable stereo connections exactly where you need them.

Built with dual 1/4" TRS stereo jacks, this wall plate handles balanced and unbalanced signals from keyboards, audio interfaces, mixing consoles, and professional audio gear. The TRS connectors support both mono and stereo applications, making it versatile for various audio routing needs.

Constructed from durable stainless steel with a professional silver finish, the plate measures 4.5" x 2.75" and fits standard electrical boxes. High-quality connectors ensure solid signal transfer without noise or dropouts, while the corrosion-resistant finish maintains its appearance in high-traffic areas.

Perfect for recording studios needing headphone feeds, live venues with monitor sends, or home theaters requiring permanent audio connections. The clean installation keeps expensive audio cables off the floor and provides consistent connection points for touring acts or resident sound systems.

Installation requires standard electrical box mounting, and all mounting screws are included. The plate accepts any standard 1/4" TRS or TS cables from your existing audio setup.

Seismic Audio backs the SA-PLATE21 with a one-year warranty and ships quickly to keep your installation project on schedule. Professional-grade connectivity at a practical price point.

Technical Specifications

Frequently Asked Questions

What type of cables work with this wall plate?

Any standard 1/4" TRS (tip-ring-sleeve) or TS (tip-sleeve) cables will connect to these jacks. TRS cables carry balanced signals or stereo audio, while TS cables work for unbalanced mono connections. Both guitar cables and professional audio cables with 1/4" connectors are compatible.

Can I use this for both balanced and unbalanced signals?

Yes, the TRS jacks accept both balanced and unbalanced connections. When you plug in a TRS cable, you get balanced signal transmission that reduces noise over long cable runs. Standard guitar cables (TS) will also work but carry unbalanced signals.

Does this fit in a standard electrical box?

The SA-PLATE21 is designed to mount over standard single-gang electrical boxes using the included mounting screws. The 4.5" x 2.75" dimensions match industry-standard wall plate sizing, making it compatible with existing electrical installations.

What's the difference between this and XLR wall plates?

This plate uses 1/4" TRS jacks, which are common for keyboards, guitars, and consumer audio gear, while XLR plates connect microphones and professional balanced audio. Choose based on your equipment's output connectors and whether you need the locking feature of XLR.

How many audio channels does this support?

With dual TRS jacks, this plate supports two independent mono channels or one stereo channel per jack (for a total of four audio channels if both jacks carry stereo). Most users run two separate mono signals or use both jacks for redundant stereo connections.

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