Sennheiser SK 2250 GW SK 2000 Bodypack Transmitter 250 mW SMA Antenna 558-626 MHz - 390014

Product Overview

The Sennheiser SK 2250 GW is the high-output 250 mW variant of the SK 2000 bodypack transmitter, purpose-built for large-scale live sound applications where standard RF power is insufficient. Operating in the 558–626 MHz UHF range, it delivers extended transmission distances while maintaining the all-metal durability and feature set that defines the evolution wireless 2000 platform. The SMA antenna connector and HiDyn+ dynamic compression technology make this transmitter a dependable solution for touring productions, large theaters, and stadium-scale events.

Product Description

When venue size demands more RF headroom, the SK 2250 GW answers with 250 mW of output power — five times the typical output of standard-power wireless bodypacks. This additional power margin extends usable range and combats RF attenuation caused by walls, large crowds, and obstructions common in arenas, convention centers, and outdoor festivals. The transmitter retains a compact, ruggedized all-metal housing that withstands the rigors of daily touring use. Frequency agility is extensive: up to 75 MHz switching bandwidth, 20 fixed banks with up to 64 compatible presets each, and 6 tunable banks with up to 64 channels, all settable in 25 kHz steps. HiDyn+ dynamic compression ensures clean, low-noise audio across the entire frequency range, and a dedicated bass-enhanced audio response mode optimizes transmission for bass guitar. Transmitter configuration can be performed remotely via the receiver menu or cloned quickly through an infrared interface. The backlit display with auto-lock keeps the unit user-proof during performances, while audio and RF mute functions give the sound engineer full control. Rechargeable BA 2015 battery packs can be charged in-unit via external charging contacts, simplifying logistics between shows. The pilot tone squelch system eliminates interference from stray RF signals during system startup and shutdown. Compatible with the EM 2000, EM 3731, EM 3732, and related evolution wireless 2000 receivers for complete system flexibility.

Key Features

• 250 mW RF Output Power — Extends transmission range significantly beyond standard-power bodypacks, ideal for large venues and obstructed environments.
• 558–626 MHz UHF Frequency Range — Stable UHF spectrum allocation with up to 75 MHz switching bandwidth for multi-channel deployments.
• SMA Antenna Connector — Industry-standard connector for compatibility with directional and high-gain antenna systems.
• HiDyn+ Dynamic Compression — Sennheiser's proprietary compander system delivers low-noise, high-dynamic-range audio transmission.
• All-Metal Housing — Rugged construction rated for demanding touring and production environments.
• 20 Fixed Frequency Banks + 6 Tunable Banks — Up to 64 compatible presets per bank; 6 tunable banks with up to 64 channels each, settable in 25 kHz steps.
• In-Unit Battery Charging — External charging contacts allow BA 2015 rechargeable packs to charge directly in the transmitter.
• Infrared Sync — Fast, one-touch frequency synchronization between transmitter and compatible evolution wireless 2000 receivers.
• Remote Configuration via Receiver Menu — Adjust transmitter parameters from the receiver without touching the bodypack.
• Pilot Tone Squelch — Prevents audio artifacts from RF interference during power-up and power-down sequences.
• Bass-Enhanced Audio Mode — Optimized frequency response in the bass range for clean wireless bass guitar transmission.
• Audio and RF Mute — Independent mute functions for studio and live sound control workflows.

Typical Applications

• Large-scale live concert touring and arena productions
• Stadium and outdoor festival stages
• Broadcast television and film production requiring extended RF range
• Large theatrical productions and opera houses
• Convention centers and multi-room conference events
• Houses of worship with expansive sanctuaries

Technical Specifications

Frequently Asked Questions

Q: What is the primary difference between the SK 2250 GW and the standard SK 2000 bodypack?

The SK 2250 GW outputs 250 mW of RF power compared to the standard SK 2000's lower power rating. This additional output is specifically designed for large venues where extended transmission range is required.

Q: Which receivers are compatible with the SK 2250 GW?

The SK 2250 GW is compatible with the Sennheiser EM 2000, EM 3731, and EM 3732 receivers, as well as other compatible evolution wireless 2000 series receivers.

Q: What frequency range does the SK 2250 GW cover?

This unit operates in the 558–626 MHz UHF band with up to 75 MHz of switching bandwidth, providing extensive frequency agility for interference management in multi-channel setups.

Q: Can the SK 2250 GW be used with a bass guitar?

Yes. The transmitter features an enhanced audio frequency response in the bass range, which is specifically optimized for bass guitar transmission to maintain full low-end fidelity.

Q: How do you recharge the battery without removing it?

The SK 2250 GW features external charging contacts that allow the BA 2015 rechargeable battery pack to be charged while remaining inside the transmitter body.

Q: Can transmitter settings be changed from the receiver?

Yes. Transmitter parameters can be configured remotely via the receiver menu, and frequency synchronization is performed via infrared interface for fast setup.

Q: What does the pilot tone squelch feature do?

The pilot tone squelch system mutes the receiver output unless it detects the specific pilot tone transmitted by the SK 2250 GW, preventing interference artifacts when the transmitter is powered on or off.

Q: Is the SK 2250 GW suitable for permanent installation?

While primarily designed for touring and live production, the SK 2250 GW's extended range and frequency agility also make it a strong choice for large permanent installations such as houses of worship and convention centers where distance or RF obstacles are a concern.