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Speaker Setup Overview for (300–500) Medium Size Audience Outdoor Concert

  • For the ones who want to know what a basic speaker setup looks like for a 300-500 audience, here’s a run down on the essentials with a diagram at the bottom.

1. Main PA (Front of House - FOH) Speakers

    • Number: 2 (or 4, if stereo stacks with subs)
    • Type: Full-range powered speakers (or passive with amps)
    • Position: Off-stage, left and right of the stage, about 10–15 feet apart, facing the audience
    • Height: Elevated on speaker poles or flown, with horns just above audience heads (~6-8 ft)
    • Angle: Slightly angled inward for coverage

Recommended Speaker:

AD
FLEX 912A

Active Speaker
$ 749
99
  • 12" Neodymium Woofer + 3" Voice Coil
  • 1.7" High Titanium Neodymium Driver
  • 1400W RMS (Class D)
  • 133 dB Max SPL
  • Built-In DSP – FIR PHASE, Presets
  • 40Hz-20 Khz Frequency Response
VIEW DETAILS
best value

2. Subwoofers (for low-end support)

    • Number: 2 (minimum), ideally 4 for better bass distribution
    • Type: Powered subs matched to mains
    • Position: Ground-stacked in front of the stage (centered or L/R under mains)

Option A

AD
FLEX 918A

18” Hyper Vented Subwoofer
$ 1,499
99
  • 18” Hyper Vented Subwoofer
  • 4-inch Voice Coil Class D Amplifier
  • 2800W Peak / 1400W RMS
  • 134dB Max SPL
  • DSP-controlled input section
  • 30 Hz – 400 Hz frequency response
VIEW DETAILS
best value

Option B

AD
FLEX 928A

Active Dual 18" Subwoofer
$ 2,350
00
  • 2×18” Hyper Vented Woofer
  • 4-inch Voice Coil Class D Amplifier
  • 5600 Watt Peak, 2800 Watt RMS
  • 138dB Max SPL
  • DSP-controlled Input section with selectable presets (e.g. cardioid)
  • 30 Hz – 400 Hz Frequency response
VIEW DETAILS
powerful

3. Stage Monitors (Wedges for Performers)

    • Number: 4–6 (depending on number of performers/zones)
    • Type: Powered floor wedges
    • Position: On stage, angled up at performers (front line vocals, drummer, etc.)

Optional: Replace with in-ear monitors (IEMs) for cleaner stage and reduced feedback, especially if using wireless mic systems. (Recommended)

Recommended In-Ear Monitor:

AD
IEM 9000

In-Ear Monitor
$ 340
  • Transmitter Carrier Frequency: UHF400-814MHz
  • RF Output Power: 10/50 mW
  • Nominal Frequency: ±40KHz
  • Receiver Input level
  • Select Switch: 0dB/-10dB
  • Earphones Output: 60mW
VIEW DETAILS
best value

Recommended Wireless Mic System

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UX 9000

Wireless Mic System
$ 600
  • 1 x UX9000 Receiver
  • Option A: 2 x UX9000 Handheld Transmitter
  • Option B: 2 x UX9000 Bodypack Transmitter
VIEW DETAILS
best value

4. Side Fills (Optional)

    • Number: 2
    • Type: Full-range speakers
    • Position: At far stage left/right, facing in toward performers to supplement monitor coverage for large bands

Recommended Speaker:

AD
FLEX 912A

Active Speaker
$ 749
99
  • 12" Neodymium Woofer + 3" Voice Coil
  • 1.7" High Titanium Neodymium Driver
  • 1400W RMS (Class D)
  • 133 dB Max SPL
  • Built-In DSP – FIR PHASE, Presets
  • 40Hz-20 Khz Frequency Response
VIEW DETAILS
best value

5. Delay Speakers (Optional, for deeper crowd areas)

    • Number: 2
    • Type: Full-range speakers
    • Position: About 50–75 ft from FOH speakers if audience area is deep

Purpose: Reinforce audio for listeners in back, time-delayed to match FOH (requires delay processing)

Recommended Speaker:

AD
FLEX 912A

Active Speaker
$ 749
99
  • 12" Neodymium Woofer + 3" Voice Coil
  • 1.7" High Titanium Neodymium Driver
  • 1400W RMS (Class D)
  • 133 dB Max SPL
  • Built-In DSP – FIR PHASE, Presets
  • 40Hz-20 Khz Frequency Response
VIEW DETAILS
best value

SAMPLE DIAGRAM

Here's a simple diagram for the size of audience we have discussed above

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