The W Audio SDPROTX is the mains-powered UHF transmitter for the SDPRO silent disco system. Feed it an audio source and it broadcasts in stereo to an unlimited number of SDPRO headphones or SDPRORX beltpack receivers. Run up to three transmitters side by side, one per channel, to give guests a choice of three audio streams – the classic multi-DJ silent disco format.
RANGE
400m+
high power mode
CHANNELS
3
selectable
RF BAND
863-865MHz
licence-free CH70
HEADPHONES
Unlimited
per transmitter
Licence-free UK operation
Transmits on 863-865MHz within Channel 70, licence-exempt in the UK – no Ofcom licence needed. Switchable low power mode (up to 200m) keeps multi-zone sites tidy; high power mode reaches 400m+ for large outdoor events.
Features
✓Stereo FM-modulated UHF transmission
✓3 selectable channels – run three transmitters for three audio streams
✓No limit on receiving headphones per transmitter
✓Switchable low/high power: up to 200m or 400m+ range
✓12V DC 1A power supply included
✓Supplied in padded carry case
Note
This is the mains-powered transmitter. For battery-powered portable use with Bluetooth input and a headset microphone (walking tours, fitness classes), see the SDPROBTX (HF006). Headphones sold separately.
Specifications
| System | UHF RF, FM modulated, stereo |
| RF frequency | 863-865MHz (CH70, licence-free) |
| Channels | 3, selectable |
| Range | Up to 200m (low power) / 400m+ (high power) |
| Power supply | 12V DC 1A (included) |
| Transmitter dimensions (H x W x D) | 35 x 185 x 140mm |
| Transmitter weight | 0.29kg |
| Case dimensions (H x W x D) | 50 x 260 x 190mm |
| Weight in case | 0.62kg |
