Sennheiser SR 3256 A Dual-Stereo IEM

Sennheiser SR 3256 A Dual-Stereo IEM is designed to deliver exceptional performance and quality, ideal for professional and personal use.

• Sennheiser SR 3256 A Dual-Stereo IEM Transmitter

  The SR 3256 twin stereo transmitter is designed for professional wireless monitoring applications. 32 transmission frequencies, 16 of which are tunable in steps of 5 kHz, give the highest flexibility. A switching bandwidth of 36 MHz per transmitter and the efficient Sennheiser HDX noise reduction system ensure reliable, high-quality signal transmission. Its rugged housing with clear, user-friendly menu control make this transmitter the ideal partner for major stage shows and tours.

  Specifications:

  • RF characteristics
  • Frequency ranges: 518–554, 626–662, 740–776, 786–822, 830–866 MHz
  • Transmission frequencies:
    • 1 channel bank with up to 16 factory-preset channels
    • 1 channel bank with up to 16 freely selectable channels (frequencies tunable in steps of 5 kHz)
  • Switching bandwidth: 36 MHz
  • Frequency stability: ±10 ppm (-10°C to +55°C)
  • Antenna output BNC: socket, 50 Ω
  • RF output power: max. 100 mW
  • AF characteristics
    • Modulation: FM stereo working on the pilot tone principle
    • Noise reduction system: Sennheiser HDX
    • Nominal/peak deviation: ±24 kHz / ±48 kHz
    • MPX pilot tone(frequency/deviation: 19 kHz / ±5 kHz
    • AF frequency response: 40–15,000 Hz
    • Headphone output: ¼“ (6.35 mm) stereo jack socket, ≥ 200 mW/32 Ω
    • Load impedance of headphone output: ≥ 16 Ω
    • AF input 2 x XLR-3, electronically balanced
    • AF input voltage (at nom. deviation) +4 dBu at 1 kHz, internally adjustable
    • Signal-to-noise ratio > 90 dB(A)rms(refers to overall link with EK 3253)
    • THD(at 1 kHz and nominal deviation): < 0.9 %
  • Overall unit
    • Power supply: 115/230 V AC +10% / –15%
    • Power consumption SR 3254: max. 13 W
    • Power consumption SR 3256: max. 23 W
    • Dimensions(without rack mount “ear: 436 x 228 x 43 mm (19″, 1 U)
    • Weight SR 3254: approx. 3,300 g
    • Weight SR 3256: approx. 4,000 g
    • Type approval:
      • USA: FCC-Part 74.861, FCC ID: DMOSREK3K
      • Canada: RSS-123, IC: 2099A-SREK3K
      • EU: ETSI EN 300 454-1/-2, CE 0682!