Sennheiser CI 1-N

The Sennheiser CI 1-N is an instrument cable designed to connect electric guitars and basses to Sennheiser Evolution Wireless bodypack transmitters. A standard 1/4-inch plug connects to your instrument, while a locking 3.5 mm connector secures to the bodypack, so the cable won’t pull loose mid-song.

Highlights

• Connects guitars and basses to Evolution Wireless bodypack transmitters
• 1/4-inch instrument plug on one end
• Locking 3.5 mm connector on the bodypack end
• Approximately 4 feet long
• Wired for Sennheiser instrument systems’ line input
• Also used in Sennheiser wireless guitar sets

Sennheiser CI 1-N: The Link Between Your Instrument and Wireless

Wireless guitar systems free players to move around the stage without tripping over cables, but the short cable between the instrument and the bodypack still matters. The CI 1-N is made for that job. Its locking 3.5 mm connector screws onto Sennheiser bodypack transmitters, so it stays secure during energetic performances, and it’s wired specifically for the instrument input of Sennheiser’s Evolution Wireless bodypacks.

Why a Dedicated Instrument Cable Matters

Not every 1/4-inch to 3.5 mm cable works with wireless bodypacks. Sennheiser instrument systems use a particular wiring scheme for the line input of the bodypack’s 3.5 mm jack, and a generic cable may produce weak, thin, or no signal. Using the CI 1-N ensures correct wiring, full signal level, and a secure locking connection.

Setting Up Your Wireless Guitar Rig

Screw the CI 1-N’s locking connector into the bodypack’s input, plug the 1/4-inch end into your guitar or bass, and clip the bodypack to your strap or belt. Route the cable so it doesn’t snag on your hand or strap. Set the bodypack’s sensitivity for your instrument’s output, then sync the transmitter to its receiver and plug the receiver into your amp or pedalboard.

What to Pair With the CI 1-N

Keep a spare CI 1-N in your gig bag; a backup cable is cheap insurance against a show-stopping failure. Pair it with a Sennheiser Evolution Wireless instrument system, a guitar strap with a bodypack pouch or clip, and rechargeable batteries for the transmitter.

Tips for Reliable Wireless Guitar

Use fresh or fully charged batteries before every show, keep the receiver within line of sight of the stage, and avoid placing the receiver next to digital effects units or power supplies that can cause interference. Check the cable’s locking connector before each performance, and replace cables that show wear at the strain reliefs.

Caring for Your Cable

Coil the CI 1-N loosely when packing up instead of wrapping it tightly around the bodypack, which strains the connectors. Unscrew the locking collar fully before unplugging, and never pull the cable out by the wire.

Sennheiser CI 1-N FAQ

Will the CI 1-N work with my Evolution Wireless bodypack? It’s designed for Sennheiser Evolution Wireless bodypack transmitters with a locking 3.5 mm input.

Can I use a regular guitar cable? No. Bodypack transmitters use a 3.5 mm locking input wired specifically for instrument systems, which is why the CI 1-N is required.

Sennheiser CI 1-N Specifications at a Glance

• Type: instrument cable for wireless bodypacks
• Connectors: 1/4-inch plug to locking 3.5 mm
• Length: approximately 4 ft
• Compatibility: Sennheiser Evolution Wireless bodypack transmitters

Who Buys the Sennheiser CI 1-N

• Guitarists and bassists using Sennheiser wireless
• Worship teams and bands
• Players needing a spare or replacement cable
• Venues and rental companies maintaining wireless kits

Why Buy the Sennheiser CI 1-N From Metro Sound & Lighting

Metro Sound & Lighting isn’t a catalog-only retailer. We sell, install, and service wireless systems in-house, so our team can help you set up a reliable wireless guitar rig and support it after the sale. We offer B2B and integrator pricing for churches, schools, and venues.

Browse more options in our Wireless Accessories category, or see the full details on the official Sennheiser CI 1-N product page.