Home
... Musical Instruments
Live Sound & Stage
Stage & Studio Cables
Instrument Cables
Sennheiser
Sennheiser EW-D CI1 Wireless Guitar System - R4-R9

Sennheiser EW-D CI1 Wireless Guitar System - R4-R9 main image

Sennheiser EW-D CI1 Wireless Guitar System - R4-R9 image 2

Sennheiser EW-D CI1 Wireless Guitar System - R4-R9 image 3

Sennheiser EW-D CI1 Wireless Guitar System - R4-R9

$511.00 to $679.00

All time low price

Find out who is using Sennheiser EW-D CI1 R4-R9

0 wishlisted

1 saved

Page last updated Jul 06, 2026

Pricing and availability

We compare 600+ stores and found this item at 7 stores. Prices updated July 4, 2026.

Store

Reviews

Price

5.0 (4)

$679.00 $579.00 $100.00 · All time low

View Deal

5.0 (1)

$679.00

View Deal

3.4 (5)

$579.00 New

$494.95 Used (Like New)

View Deal

4.0 (1)

$679.00 $579.00 $100.00 · All time low

View Deal

5.0 (1)

$679.00

View Deal

5.0 (2)

$679.00 $579.00 $100.00 · All time low

View Deal

4.7 (3)

$511.00

View Deal

Price History

Based on price data from 6 merchants for "Sennheiser EW-D CI1 Wireless Guitar System - R4-R9". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

^* Product prices and availability are updated by Equipboard every 24hrs and are subject to change. Equipboard may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. For more information, please refer to our affiliate disclosure.

Description

Edit description

Experience ultimate freedom and superior sound quality with the Sennheiser EW-D CI1 Wireless Guitar System - R4-R9. Tailored for the dynamic needs of stage performers, this complete digital wireless system ensures your performance remains flawless, free from the noise and interference typical of analog systems. The system’s 134 dB dynamic range captures every nuance of your sound, while the robust UHF transmission guarantees extended range and reliability.

The EW-D CI1 includes a metal bodypack transmitter and the durable CI1 instrument cable, designed for rigorous stage use. With the intuitive EW-D Smart Assist App available on both iOS and Android, setting up and managing your system is a breeze. The app allows seamless pairing, frequency scanning, and comprehensive system management—all from your smartphone. Whether you're performing in a small club or a large concert venue, the EW-D CI1 adapts effortlessly to your environment, offering up to 2,240 selectable frequencies across the 56 MHz bandwidth for scalable options.

Key Features:

Digital wireless system eliminates noise and interference
UHF transmission enhances range and reliability
134 dB dynamic range captures detailed sound
EW-D Smart Assist App for easy setup and management
Up to 2,240 selectable frequencies support extensive scalability
Up to 8 hours of operation on AA batteries, or 12 hours with optional lithium-ion batteries
Includes bodypack transmitter, CI1 instrument cable, receiver, rack kit, and accessories.

Product specs

Configuration	Complete System
System Analog/Digital	Digital
System Frequency Range	552-608 MHz
System Operating Range	328 ft. Line-of-sight
System Channel Selection	Auto
System Frequency Response	20Hz-20kHz
Instrument Cable Connector 1	1/4"
Instrument Cable Connector 2	1/8"
Transmitter Form Factor	Bodypack
Transmitter Dynamic Range	134dB
Transmitter Mute Feature	Yes
Transmitter Battery Type	2 x AA / Sennheiser Rechargeable battery pack
Transmitter Battery Life	8 hours (AA), 12 hours (sennheiser rechargeable)
Transmitter Dimensions	2.4" x 3.1" x 0.78"
Transmitter Weight	0.26 lbs. (without batteries)
Microphone Color	Black
Receiver Antenna Type	Detachable
Receiver Front Panel Display	Yes
Receiver Displays	OLED
Receiver Type	Table Top, Rackmount
Receiver Rackmountable	Yes
Receiver Rack Spaces	Half-rack
Receiver Outputs	1 x XLR, 1 x 1/4"
Receiver Power Source	12V DC power supply (included)
Receiver Dimensions	8.3" x 1.7" x 7.4"
Receiver Weight	2.2 lbs.

FAQs

What is the operating range of the Sennheiser EW-D CI1 Wireless Guitar System?: The Sennheiser EW-D CI1 Wireless Guitar System has an operating range of 328 feet line-of-sight, providing ample coverage for most stage setups and live performances.
Does the Sennheiser EW-D CI1 system automatically select channels?: Yes, the Sennheiser EW-D CI1 Wireless Guitar System features automatic channel selection, simplifying setup and ensuring optimal performance by minimizing interference.
What type of batteries does the Sennheiser EW-D CI1 transmitter use, and how long do they last?: The transmitter uses either 2 AA batteries or a Sennheiser rechargeable battery pack, offering up to 8 hours of operation with AA batteries and up to 12 hours with the rechargeable pack.
Is the Sennheiser EW-D CI1 receiver rackmountable?: Yes, the receiver for the Sennheiser EW-D CI1 Wireless Guitar System is rackmountable, occupying half a rack space, which is ideal for professional setups.
What are the main output options on the Sennheiser EW-D CI1 receiver?: The receiver includes 1 x XLR and 1 x 1/4" output, providing versatile connectivity options for integration with various audio systems and setups.

Videos

Add video

Get Offset

Easy Setup Guide for Sennheiser EW-D CI1 Wireless Guitar System

Get Offset

Reviews

Add review

PROS

Impressive range, even in challenging environments like large venues or busy cities
Less than 2ms latency, ensuring seamless performance
Operates outside overcrowded 2.4GHz band, avoiding common interference issues
Sturdy metal casing for durability during active performances
Strong transmitter clip securely attaches to guitar strap
App integration for easy adjustments without accessing the receiver
High-quality sound with no tone coloration compared to analog systems
Reliable performance with no dropouts or frequency issues
Long battery life with optional rechargeable battery pack
Easily integrates into rack setups with smart design

CONS

CI1 cable reliability issues reported, with multiple failures noted
Small mute button on transmitter is difficult to use during quick instrument changes
Quality control concerns with some units having faulty components out of the box
Lacks right-angle instrument cable option, which could be more versatile

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Sennheiser EW-D CI1 Wireless Guitar System - R4-R9.

Software and compatibility

0 0

The Sennheiser EW-D CI1 Wireless Guitar System R4-R9 is recommended for U.S. use due to its broader frequency range of 552-608 MHz, avoiding potential regulatory issues.
Source
0 0

Wireless Systems Manager cannot control EW-D systems or calculate frequencies, requiring manual input for frequency coordination.
Source
0 0

The Smart Assist app can detect and correct corrupted devices by restarting the firmware update process, which resolves issues with transmitter sync.
Source

Features and functionality

0 0

The Sennheiser frequency tool is currently unreliable, making manual research on local frequency usage necessary for optimal system performance.
Source
0 0

The EW-D system's Bluetooth control is noted for being glitchy, with issues in range and battery strength reporting.
Source

Use cases and applications

0 0

Using local TV station frequency data can help avoid interference; particularly useful in urban areas with dense broadcast activity.
Source
0 0

Highly recommended for small, quick setups that don’t require RF coordination or network control, making it ideal for simpler live sound scenarios.
Source

User experience

0 0

The EW-D system is praised for its stability and solid performance, with fantastic input SPL handling, particularly noted by users with extensive experience in live sound setups.
Source
0 0

After a firmware update using Smart Assist, the EW-D system's transmitters sync correctly with the receiver, resolving previous flashing blue LED issues.
Source

Setup and maintenance

0 0

Users have identified that using the Smart Assist app to update the device firmware resolves transmitter sync issues, particularly when updates are interrupted.
Source

Add review

Based on 0 Reviews and 0 Ratings

5 star

4 star

3 star

2 star

1 star

Artist usage

Add artist

Fletcher Dragge

Guitarist

Pennywise

Verified via YouTube

In an interview with Revv Amps, Fletcher Dragge confirms his use of the Sennheiser EW-D Wireless Guitar System. He mentions that he and his band's sound engineer incorporate the wireless system into the gain structure of his tone. the engineer noted that it adds a bit of saturation. Fletcher also states that the gain structure may vary depending on the day and their personal preferences.