The SA-iSTMO6 connects your smartphone, tablet, or laptop directly to a mixing console, amplifier, or PA system. This 6-foot cable bridges the gap between consumer devices and professional audio gear, making it essential for DJs, live performers, and venues that need reliable device-to-mixer connectivity.

This stereo-to-mono adapter cable takes the stereo output from your device's headphone jack and converts it to a single mono signal that feeds into standard mixer inputs. The 1/8" TRS connector handles stereo signals from phones, tablets, and media players, while the 1/4" TS end plugs into any mixer's line input or instrument channel.

Built with oxygen-free copper conductors and nickel-plated connectors, the SA-iSTMO6 maintains signal integrity across its 6-foot length. The cable weighs just 0.14 pounds, making it easy to transport in your cable bag or DJ case. Professional-grade construction ensures reliable performance night after night.

Perfect for DJs mixing tracks from phones or tablets, bands running backing tracks from laptops, or venues that need quick device connectivity. Works seamlessly in small clubs, coffee shops, or house parties where you need to integrate consumer devices into a professional sound system.

The cable comes ready to use out of the box – simply connect your device's headphone output to the 1/8" end and plug the 1/4" end into your mixer's line input.

Seismic Audio backs the SA-iSTMO6 with a one-year warranty, and it ships fast from our warehouse to keep your live sound setup running.

Technical Specifications

Frequently Asked Questions

Will this cable work with my iPhone or Android phone?

Yes, the SA-iSTMO6 works with any device that has a standard headphone jack, including iPhones, Android phones, tablets, laptops, MP3 players, and media devices. If your newer phone doesn't have a headphone jack, you'll need a Lightning-to-headphone or USB-C-to-headphone adapter first.

What happens to the stereo signal when it goes through this cable?

The cable sums both left and right channels from your stereo device into a single mono signal. This means you'll hear both channels mixed together through one mixer input. This is ideal for most DJ and backing track applications where you want the full mix in mono rather than just one side of a stereo signal.

Can I use this to connect my laptop to a small PA system?

Absolutely. This cable is perfect for connecting laptops, tablets, or phones directly to mixer line inputs, powered speakers with line inputs, or amplifier inputs. It's ideal for coffee shops, small venues, house parties, or any situation where you need to run audio from a consumer device through a PA system.

What's the difference between this and a regular 1/8" to 1/4" cable?

Regular cables are typically stereo-to-stereo (TRS to TRS). This cable specifically converts stereo to mono, which is what most mixer inputs expect. Using a regular stereo cable into a mono mixer input would only give you one channel of your stereo signal, potentially cutting out vocals or instruments.

How long will this cable last with regular DJ use?

The oxygen-free copper conductors and nickel-plated connectors are built for professional use and frequent plugging/unplugging. The cable is lightweight but durable enough for regular transport in DJ bags. Seismic Audio backs it with a one-year warranty against manufacturing defects.

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