AC115S-WH vs CBT-70J-1-B — Compare
JBL AC115S-WH 15" Subwoofer, white vs JBL Cbt 70J-1 J-shaped 2-WAY Line Array Column Spk, Blk B-Stock
The AC115S-WH is a powered subwoofer dedicated to low-frequency reinforcement in medium-sized rooms and portable rigs, while the CBT 70J-1 is a full-range line array column speaker for fixed installations requiring controlled vertical dispersion across larger venues. Choose the AC115S-WH if you need focused bass punch for live sound or installed systems; choose the CBT 70J-1 if you need intelligible full-range coverage with predictable directional control.
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JBL Cbt 70J-1 J-shaped 2-WAY Line Array Column Spk, Blk B-Stock
Specs side by side
| JBL AC115S-WH 15" Subwoofer, white | JBL Cbt 70J-1 J-shaped 2-WAY Line Array Column Spk, Blk B-Stock | |
|---|---|---|
| Price | $1,550.00 | $1,184.00 |
| Brand | JBL | JBL |
| Speaker Type | Subwoofer | Column |
| Install Type | Installed | Installed |
| Condition | New | Refurbished |
Why choose JBL AC115S-WH 15" Subwoofer, white
- ✓ Compact footprint with 15-inch driver and vented design fits tight spaces in installed systems
- ✓ High efficiency (94 dB sensitivity) responds well to modest input levels
- ✓ Dual Neutrik connectors and 12 M10 rigging points enable flexible mounting and wiring
- ✓ 400W continuous power delivers stable, undistorted bass down to 40 Hz
Why choose JBL Cbt 70J-1 J-shaped 2-WAY Line Array Column Spk, Blk B-Stock
- ✓ J-shaped column design eliminates phase issues and provides smooth frequency response across listening area
- ✓ Switchable 45° and 25° coverage patterns adapt to different venue sizes and mounting heights
- ✓ Sixteen tweeters plus four coaxial drivers deliver articulate highs and intelligible vocals
- ✓ Professional-grade construction for fixed installations in houses of worship and retail environments
Frequently asked questions
Which speaker works better for portable live sound?
The AC115S-WH is designed for portable PA rigs and gigging; the CBT 70J-1 is optimized for fixed installations and is not ideal for mobile DJ or portable setups due to its size and fixed mounting design.
Do these speakers handle the same frequency range?
No. The AC115S-WH handles only low frequencies (40–250 Hz ±3 dB), requiring paired main speakers for midrange and highs. The CBT 70J-1 is a full-range 2-way system covering midrange through highs with four 125 mm LF drivers and sixteen tweeters.
Which is better for intelligibility and vocal clarity?
The CBT 70J-1 is specifically designed for intelligible vocals and articulate highs with controlled dispersion across a room. The AC115S-WH only handles bass extension and requires full-range speakers alongside it.
What's the power and SPL difference?
The AC115S-WH delivers 120 dB SPL maximum (400W continuous, efficient design) for focused bass in medium rooms. The CBT 70J-1 handles 350W RMS across full-range drivers and is built for demanding SPL requirements in larger fixed venues.