• Used - Lectrosonics SMQV BLK 19 - C-164

*If interested in the product, please call 1(818) 566-6526 for availability


  • 1x Lectrosonics SMQV BLK19
  • SMQV Belt Pouch

Product Description

  • Digital Hybrid Wireless™ Technology*
    (U.S. Patent #7,225,135)
  • Variable, selectable power output:
    • SMQV: 50mW, 100mW, 250mW (for X and US units, blocks 470-23)
    • SMQV: 50mW, 100mW (for US units, block 941)
  • Membrane switch control panel with LCD display
  • Wide input dynamic range
  • DSP based pilot-tone signal
  • Circulator/Isolator output stage
  • Splash-proof, machined aluminum housing
  • Non-corrosive, super-hard finish

To meet the demand for both extended operating range and extended battery life, the "V" series SM transmitters offer selectable output power (See specific model data sheets for details). A third selection at 50 mW is provided for some theatrical applications where the system design specifies lower transmitter power.

The input section features the unique servo bias input circuitry with a standard TA5M type jack for use with electret lavaliere mics, dynamic mics, or line level signals. A DSP-controlled analog audio limiter is employed before the A-D converter. The limiter has a range of more than 30 dB for excellent overload protection and a dual release envelope that makes the limiter acoustically transparent while maintaining low distortion. The limiter recovers quickly from brief transients, with no audible side effects, and also recovers slowly from sustained high levels to keep audio distortion low while preserving short-term dynamics.


Operating frequencies: Block 19 486.400 - 511.975

Channel Spacing: Selectable; 25 or 100 kHz

Frequency selection: Control panel mounted membrane switches

RF Power output: US, X: Selectable; 50, 100 or 250 mW 941: Selectable, 50 or 100 mW

Compatibility Modes: US: Nu Hybrid, Mode 3, IFB

X: Digital Hybrid Wireless™ (400 Series), 200 Series, 100 Series, Mode 3 , Mode 6, IFB 941: Nu Hybrid, IFB

Pilot tone: US: 3.5 kHz deviation (in Nu Hybrid Mode) X: 25 to 32 kHz; 5 kHz deviation (in 400 Series Mode) 941: 27 to 32 kHz; 3 kHz deviation (in Nu Hybrid Mode)

Frequency stability: ± 0.002%

Spurious radiation: US: Compliant with ETSI EN 300 422-1 v1.4.2

Equivalent input noise: –125 dBV, A-weighted

Input level: If set for dynamic mic: 0.5 mV to 50 mV before limiting. Greater than 1 V with limiting. If set for electret lavaliere mic: 1.7 uA to 170 uA before limiting. Greater than 5000 uA (5 mA) with limiting.

Line level input: 17 mV to 1.7 V before limiting. Greater than 50 V with limiting.

Input impedance: Dynamic mic: 300 Ohms Electret lavaliere: Input is virtual ground with servo adjusted constant current bias

Line level: 2.7 k Ohms Input limiter: Soft limiter, 30 dB range

Bias voltages: Fixed 5 V at up to 5 mA; Selectable 2 V or 4 V servo bias for any electret lavaliere

Used - Lectrosonics SMQV BLK 19 - C-164

  • $1,350.00