CONTROL-328CT vs JBL-GSF3-GN — Compare
JBL Control 328CT 8" Coaxial 2-WAY Ceiling Spk W Transformer vs JBL JBL-GSF3-GN Ground-Stake Spkr, 3" Coax, Grn, 1 pc (Pair)
The Control 328CT is a fixed ceiling-mount speaker for indoor commercial spaces requiring consistent coverage and speech clarity, while the GSF3-GN is a portable outdoor ground-stake speaker built for weather resistance and landscape installations. Choose the Control 328CT for retail, offices, and institutional buildings; choose the GSF3-GN for outdoor events, gardens, and permanent outdoor distributed systems.
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JBL Control 328CT 8" Coaxial 2-WAY Ceiling Spk W Transformer
JBL JBL-GSF3-GN Ground-Stake Spkr, 3" Coax, Grn, 1 pc (Pair)
Specs side by side
| JBL Control 328CT 8" Coaxial 2-WAY Ceiling Spk W Transformer | JBL JBL-GSF3-GN Ground-Stake Spkr, 3" Coax, Grn, 1 pc (Pair) | |
|---|---|---|
| Price | $440.00 | $444.00 |
| Brand | JBL | JBL |
| Speaker Type | Ceiling | Landscape |
| Install Type | Installed | Installed |
| Condition | New | New |
Why choose JBL Control 328CT 8" Coaxial 2-WAY Ceiling Spk W Transformer
- ✓ Larger 8-inch woofer with Kevlar reinforcement for fuller bass and higher sensitivity (93 dB)
- ✓ Integrated 70V/100V transformer rated 68 watts with 250W long-term and 1000W peak capacity
- ✓ Flush ceiling mount fits standard 12-inch ceiling cutout; optimized for indoor speech intelligibility
Why choose JBL JBL-GSF3-GN Ground-Stake Spkr, 3" Coax, Grn, 1 pc (Pair)
- ✓ IP66 weather rating and MIL-810STD certification for extreme outdoor durability
- ✓ Ground-stake mounting with included L-bracket offers flexible outdoor positioning without ceiling infrastructure
- ✓ Compact 3-inch coaxial design weighs less and fits unobtrusively in landscape installations
Frequently asked questions
Which speaker works better for outdoor use?
The GSF3-GN is purpose-built for outdoors with IP66 weather protection and MIL-810STD certification against salt spray, UV, and temperature extremes. The Control 328CT is designed for indoor ceiling mounting and is not weather-rated for outdoor exposure.
Can both speakers connect to 70V/100V distributed systems?
Yes. The Control 328CT includes a 68-watt multi-tap transformer, and the GSF3-GN includes a 15-watt multi-tap transformer. Both can be wired to 70V or 100V speaker lines, though the Control 328CT handles higher power and is better suited for larger installations.
Which is better for a small room or single-zone coverage?
The Control 328CT delivers 93 dB sensitivity with a 120° broadband pattern and is optimized for medium-sized indoor rooms with consistent coverage. The GSF3-GN's 90° conical coverage is designed for outdoor projection and is smaller, making it less suitable for large indoor spaces.
What's the frequency range difference?
The Control 328CT spans 60 Hz–16 kHz (±3 dB) with extension to 45 Hz–18 kHz, providing deeper bass suitable for music and speech. The GSF3-GN delivers full-range output from its 3-inch coaxial design but is not specified with a detailed frequency response curve, typical for outdoor speakers prioritizing durability over frequency accuracy.