Alfatron ALFW-51W/B

The ALFW-51W/B is a 5” 2 Way surface mount speaker with 8Ω,70V and 100V line input connections.

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Description

The Alfatron ALFW-51W / ALFW-51B is a 30W high-performance wall-mount loudspeaker designed for clear, balanced audio reproduction in commercial and professional AV installations. Engineered with precise horizontal and vertical dispersion characteristics, it delivers consistent sound coverage across a wide listening area.

Ideal for conference rooms, classrooms, retail spaces, hospitality venues, and corporate environments, the ALFW-51 series combines reliable performance with a clean, modern design that blends seamlessly into any interior.

Key Features

  • 5” full-range driver for clear speech and background music

  • Power taps:
    • Power taps: 30W 8Ω
    • 30W / 15W / 7.5W / 3.75W / 1.9W @ 70V
    • 30W /15W / 7.5W / 3.75W @100V
  • Optimized polar response for even horizontal and vertical sound dispersion

  • High speech intelligibility, ideal for voice reinforcement

  • Compact wall-mount design for discreet installation

  • Available in white (ALFW-51W) or black (ALFW-51B)

  • Suitable for commercial and professional audio systems

Applications

  • Meeting & conference rooms

  • Education facilities

  • Retail and hospitality spaces

  • Corporate offices

  • Background music and paging systems

Specifications

  • Speaker  Type: 2 Way bass reflex
  • Output Power: 30W
  • 70V/ 100V /8Ω Tap Settings
    • 30W 8Ω
    • 30W / 15W / 7.5W / 3.75W / 1.9W @ 70V
    • 30W /15W / 7.5W / 3.75W @100V
  • Frequency range: 100- 20000 Hz 
  • Sensitivity: 89 db
  • SPL: 101dB at 100v 15W
  • Dimensions with Mounting Bracket 182x162x242mm 

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Resources

Technical Sheet

Speaker Bracket Drawing

FAQ's

1.Q – Is the speaker low impedance?
   A – Both low and high impedance.

2.Q – What colors do the speakers come in?
   A – Black and white.

3.Q – How many watts is the speaker.
   A – 30W at 8 ohm and can be tapped differently for 100V.

4.Q – What size is the driver?
   A – 5 inches

5.Q – Frequency response?
  A – 100 – 20 000 Hz