C24CT-BK-B vs CONTROL-23-1-B — Compare
JBL C24CT-BK 4" 2-WAY Coaxial Ceiling Spk W Transformer, Blk (Pair) B-Stock vs JBL Control 23-1 3" 2-WAY COMPACT SURFACE-MT SPEAKER, BLK (Pair) B-Stock
The C24CT-BK is a ceiling-flush coaxial speaker with integrated 30W distributed-line transformer for large-scale commercial installations requiring long cable runs, while the Control 23-1 is a compact surface-mount speaker with flexible mounting and lower power handling better suited to smaller retail and hospitality spaces. Choose the C24CT-BK for networked 70V/100V systems across offices and institutions; choose the Control 23-1 for standalone or modest multi-zone setups in tight spaces.
No sales tax on orders shipped outside California — total cost beats national retailers that charge sales tax in nearly every state.
JBL C24CT-BK 4" 2-WAY Coaxial Ceiling Spk W Transformer, Blk (Pair) B-Stock
JBL Control 23-1 3" 2-WAY COMPACT SURFACE-MT SPEAKER, BLK (Pair) B-Stock
Specs side by side
| JBL C24CT-BK 4" 2-WAY Coaxial Ceiling Spk W Transformer, Blk (Pair) B-Stock | JBL Control 23-1 3" 2-WAY COMPACT SURFACE-MT SPEAKER, BLK (Pair) B-Stock | |
|---|---|---|
| Price | $280.00 | $280.00 |
| Brand | JBL | JBL |
| Speaker Type | Ceiling | Surface-Mount |
| Install Type | Installed | Installed |
| Condition | Refurbished | Refurbished |
Why choose JBL C24CT-BK 4" 2-WAY Coaxial Ceiling Spk W Transformer, Blk (Pair) B-Stock
- ✓ Integrated 30W multitap transformer with 70V/100V switchable taps eliminates need for external equipment
- ✓ Larger 4-inch woofer with 0.75-inch tweeter delivers deeper bass and higher output capability
- ✓ Seamless flush-mount ceiling installation with back can and tile rails included
- ✓ SonicGuard overload protection suits sustained high-use commercial environments
Why choose JBL Control 23-1 3" 2-WAY COMPACT SURFACE-MT SPEAKER, BLK (Pair) B-Stock
- ✓ Extremely compact footprint (7.9H × 5.6W × 4.4D inches) fits tight spaces and walls
- ✓ Versatile surface-mount or InvisiBall hidden mounting supports non-ceiling installations
- ✓ Lighter weight (4 lbs) simplifies handling and reduces installation labor
- ✓ Dual-impedance design supports both 8-ohm direct and 70V/100V transformer operation
Frequently asked questions
Which speaker works better for a 70V distributed line system across a large office or retail chain?
The C24CT-BK is purpose-built for this application. Its integrated 30W multitap transformer with direct 70V/100V switchable taps (30W, 15W, 7.5W, plus 37W at 70.7V) eliminates the need for external transformers and simplifies impedance matching across long cable runs in multi-zone commercial installations.
Which is better for a small retail store with limited ceiling depth or surface mounting needs?
The Control 23-1 is the better choice. It offers compact surface-mount or InvisiBall hidden mounting flexibility, weighs only 4 lbs, and measures just 7.9H × 5.6W × 4.4D inches, making it ideal for tight spaces where ceiling-flush installation is not possible or desired.
What is the key acoustic difference between them?
The C24CT-BK uses a coaxial 4-inch woofer with 0.75-inch tweeter and delivers a 130° coverage pattern with 80 Hz–20 kHz response, while the Control 23-1 uses a 3-inch woven fiberglass woofer with 1/2-inch PEI tweeter and 100° coverage with 70 Hz–20 kHz response. The C24CT-BK offers wider coverage and deeper bass extension; the Control 23-1 provides neutral midrange clarity in a smaller package.
Can the Control 23-1 work on a 70V system without an external transformer?
Yes. The Control 23-1 includes a built-in 15W 70V/100V multitap transformer, so it works directly on distributed-line systems without external equipment. However, its lower transformer power rating (15W vs. 30W) makes it better suited to smaller installations or zones compared to the C24CT-BK.