Rated 4.9 (79 reviews)
The Shure BLX14RUK/MX53-K3E is the K3E band variant of the Shure BLX analogue UHF wireless system. The system ships with a BLX4R half-rack single-channel receiver, bodypack transmitter and a Shure MX153 omnidirectional condenser earset. It is intended for fitness instructors, presenters, theatre, houses of worship and education.
LicensingIn the UK, 606 to 613.5 MHz falls under Ofcom’s Channel 38 shared licence; frequencies above 613.5 MHz within the K3E tuning range require a site-specific coordinated PMSE licence from Ofcom. Operators must hold the appropriate licence before use.
Key Features
Operates in the K3E (606 to 630 MHz) UHF band
Analogue FM transmission at 10 mW RF output
Up to 91 m (300 ft) line-of-sight working range
QuickScan frequency selection finds a clear channel automatically
Microprocessor-controlled internal antenna diversity
Audio frequency response 50 Hz to 15 kHz
Dynamic range 100 dB A-weighted (typical)
Total harmonic distortion 0.5 percent typical
Half-rack 1U chassis with detachable front-panel antennas and rack ears
Balanced XLR and unbalanced 1/4-inch audio outputs on the receiver
BLX1 bodypack transmitter with TA4F (TQG) input connector
Up to 14 hours of runtime from two AA batteries
Specifications
| Brand | Shure |
| Model | BLX14RUK/MX53-K3E |
| System family | BLX Wireless |
| Band | K3E (606 to 630 MHz) |
| Transmission | Analogue FM |
| RF output power | 10 mW |
| Audio frequency response | 50 Hz to 15 kHz |
| Dynamic range | 100 dB (A-weighted, typical) |
| Total harmonic distortion | 0.5 percent typical |
| Working range | 91 m (300 ft) line of sight |
| Receiver | BLX4R half-rack single-channel, front-mounted antennas |
| Receiver outputs | Balanced XLR and unbalanced 1/4-inch (6.35 mm) |
| Transmitter | BLX1 bodypack, TA4F (TQG) input |
| Microphone | Shure MX153 omnidirectional condenser earset |
| Transmitter battery | 2 x AA, up to 14 hours runtime |
