Sennheiser EW 135 G4 Wireless Microphone System – Specifications and Review

The Sennheiser EW 135 G4 belongs to the evolution wireless G4 family, one of the most established professional wireless audio platforms used across small to mid sized venues, houses of worship, conference rooms, clubs, mobile DJ rigs, and event production inventories. In its standard vocal configuration, the system is typically built around the EM 100 G4 receiver and the SKM 100 G4 handheld transmitter fitted with the MMD 835 capsule, a dynamic cardioid stage capsule known for articulate presence and controlled rejection. Listings that mention dual channels should be interpreted carefully, because the original EW 135 G4 is normally sold as a single channel vocal set, while dual channel language often refers to multi system deployment capability or seller bundling rather than two handhelds in one factory package. The platform uses UHF frequency operation, coordinated channel banks, infrared synchronization, and robust RF power appropriate to the regional version. In market terms, it sits clearly above consumer karaoke microphones and low cost generic UHF kits, while remaining more accessible than flagship digital touring systems from premium live sound catalogs.

⚙️ Technical Specifications

📝 Sennheiser EW 135 G4 Wireless Microphone System Review

📚 Technical Glossary

• True diversity: A true diversity receiver uses two independent RF reception paths and continuously compares them to select the stronger or cleaner signal. This reduces dropouts caused by reflections, body shadowing, and multipath interference in real venues.
• HDX compander: A compander compresses the audio signal in the transmitter and expands it again in the receiver. In analog wireless systems, this technique improves effective dynamic range and lowers the perceived noise floor.
• Pilot tone squelch: A pilot tone is a control signal transmitted alongside the audio carrier. If the receiver no longer detects that tone, it mutes its output so that bursts of noise, random RF interference, or an unrelated transmitter do not reach the sound system.
• Coordinated UHF frequency bank: This is a pre calculated group of frequencies designed to operate together with minimal intermodulation problems. It is essential in multi microphone deployments because random frequency choices can create instability even when each individual channel looks clear on its own.

🆚 Comparison & Competition

EW 135 G4 competes most directly with other mid tier professional analog UHF handheld systems that use metal receivers, diversity reception, and stage oriented dynamic capsules. Against similarly priced rivals, it stands out for mature frequency coordination, broad industry familiarity, and the predictable live voicing of the e835 family. The most relevant differences between competing products are usually capsule character, frequency agility, software ecosystem, and how gracefully the system scales when several wireless channels must operate together.

• Rival 1: Shure BLX24R/SM58: a similarly targeted rackmount vocal wireless package with a respected handheld voicing, but it is generally less flexible in channel coordination and frequency management than EW G4.
• Rival 2: Audio-Technica ATW-3212/C510: a closely matched UHF handheld system with strong RF competence and solid audio quality, but it differs in user interface philosophy, capsule character, and available regional frequency options.

💡 Frequently Asked Questions (FAQ)