JBL ASB4128-WRX Medium Power Loudspeaker (Each)
The JBL ASB4128-WRX is a high-power 3-way professional loudspeaker with rotatable horn, 4 Ohms in parallel-drive mode 2 x 8 Ohms in discrete-drive mode impedance, and 30 Hz– 100 Hz: 103 dB100 Hz– 500 Hz: 103 dB sensitivity. Featuring a 15-inch Differential Drive woofer and progressive transition waveguide, it delivers precise pattern control and exceptional clarity.Overview
The JBL ASB4128-WRX is a high-power, lightweight 3-way full-range loudspeaker engineered for professional live sound, theatrical installations, and fixed venues. Combining Differential Drive technology with precision waveguide design, it delivers high-SPL output with controlled directivity for demanding applications.
Key Features
- Bi-Amp and Passive switching for system integration flexibility
Specifications
- Frequency Response: 40 Hz– 1 kHz
- Impedance: 4 Ohms in parallel-drive mode 2 x 8 Ohms in discrete-drive mode
- Maximum SPL: 30 Hz– 100 Hz: 133 dB-SPL cont avg (139 dB peak)100 Hz– 500 Hz: 133 dB-SPL cont avg (139 dB peak)
- Power Capacity: 600 W (2400 W peak), 100 hrs
- Sensitivity (SPL / 1 W @ 1 m): 30 Hz– 100 Hz: 103 dB100 Hz– 500 Hz: 103 dB
- Enclosure: Rectangular cabinet, 16 mm (5/8 in) exterior grade 11-ply Finnish birch plywood
- Weight: 64.9
Why buy from Procure.ae
Procure.ae supplies professional AV and audio equipment for institutional buyers across the UAE and GCC. We provide expert guidance, competitive bulk pricing, and reliable delivery. Request a quote for volume orders and system integration support.
FAQ
What is the difference between passive and bi-amp operation?
Passive mode uses the built-in crossover for simple installation. Bi-amp mode allows external amplifier control of each driver section for higher SPL and greater flexibility.
Can these speakers be rigged or suspended?
Yes, each unit has M10 threaded suspension points. Consult documentation for safe working load and rigging specifications.
How do I request a quote or confirm compatibility?
Contact Procure.ae with your venue specifications and quantity. We provide system recommendations and competitive pricing.
Description
Overview
The JBL ASB4128-WRX is a high-power, lightweight 3-way full-range loudspeaker engineered for professional live sound, theatrical installations, and fixed venues. Combining Differential Drive technology with precision waveguide design, it delivers high-SPL output with controlled directivity for demanding applications.
Key Features
- Bi-Amp and Passive switching for system integration flexibility
Specifications
- Frequency Response: 40 Hz– 1 kHz
- Impedance: 4 Ohms in parallel-drive mode 2 x 8 Ohms in discrete-drive mode
- Maximum SPL: 30 Hz– 100 Hz: 133 dB-SPL cont avg (139 dB peak)100 Hz– 500 Hz: 133 dB-SPL cont avg (139 dB peak)
- Power Capacity: 600 W (2400 W peak), 100 hrs
- Sensitivity (SPL / 1 W @ 1 m): 30 Hz– 100 Hz: 103 dB100 Hz– 500 Hz: 103 dB
- Enclosure: Rectangular cabinet, 16 mm (5/8 in) exterior grade 11-ply Finnish birch plywood
- Weight: 64.9
Why buy from Procure.ae
Procure.ae supplies professional AV and audio equipment for institutional buyers across the UAE and GCC. We provide expert guidance, competitive bulk pricing, and reliable delivery. Request a quote for volume orders and system integration support.
FAQ
What is the difference between passive and bi-amp operation?
Passive mode uses the built-in crossover for simple installation. Bi-amp mode allows external amplifier control of each driver section for higher SPL and greater flexibility.
Can these speakers be rigged or suspended?
Yes, each unit has M10 threaded suspension points. Consult documentation for safe working load and rigging specifications.
How do I request a quote or confirm compatibility?
Contact Procure.ae with your venue specifications and quantity. We provide system recommendations and competitive pricing.
Specifications
Brand
JBL
Product Type
Pa Speaker
Storefront L1
Audio Video
Storefront L2
Speakers
Storefront L3
Pa Speakers
Weight (Spec)
64.9
Color (Spec)
Black
Country of Origin
United States
Frequency Response
40 Hz – 1 kHz
Impedance
4 ohms in parallel-drive mode 2 x 8 ohms in discrete-drive mode
Maximum SPL
30 Hz – 100 Hz: 133 dB-SPL cont avg (139 dB peak)100 Hz – 500 Hz: 133 dB-SPL cont avg (139 dB peak)
Power Capacity
600 W (2400 W peak), 100 hrs
Sensitivity (SPL / 1 W @ 1 m)
30 Hz – 100 Hz: 103 dB100 Hz – 500 Hz: 103 dB
Frequency Range
30 Hz – 1 kHz
Enclosure
Rectangular cabinet, 16 mm (5/8 in) exterior grade 11-ply Finnish birch plywood
Mounting
12 points (3 top, 3 bottom, 3 each side, 2 rear), M10 threaded hardware
Frequently Asked Questions
How does the ASB4128-WRX variant differ from the -WRC in terms of mounting or operational flexibility?
The -WRX designation indicates a specific configuration variant. Contact Procure.ae to confirm the exact differences and which variant suits your installation method.
For a venue planning to upgrade its PA system gradually, does the ASB4128's dual-impedance capability help avoid costly re-wiring?
Yes, the flexible impedance modes allow you to integrate the ASB4128 with existing equipment and adapt to future system expansion without major rewiring.
What is the difference in amplifier power handling between 4 Ohms parallel and 8 Ohms discrete modes?
In 4 Ohms parallel mode, the amplifier sees lower impedance and delivers higher power. In 8 Ohms discrete mode, power is lower but stable. Both achieve 103 dB SPL with appropriate amplifier sizing.
Does the rotatable horn on the ASB4128 work the same in both impedance modes, or is there an operational difference?
The rotatable horn operates identically in both modes; impedance mode affects only power handling, not coverage pattern or horn function.
What protection against power surges or impedance mismatches should we implement when using the ASB4128?
Use a properly grounded amplifier with protection circuits, double-check impedance settings before powering up, and use quality speaker cables rated for your chosen mode.
Is the ASB4128-WRX a good retrofit option for replacing aging speakers in an existing venue without major reconstruction?
Yes, the flexible impedance modes and standard 15-inch woofer make it a good upgrade path. Verify mounting compatibility and amplifier capacity before purchase.
What delivery options and lead times are available for the ASB4128-WRX in the GCC?
Lead times vary by location and availability. Contact Procure.ae with your order details and location to confirm delivery timelines.
If we have existing amplifiers that are 4 Ohms compatible, can Procure.ae confirm that the ASB4128-WRX will integrate seamlessly?
Procure.ae can verify compatibility based on your amplifier specs and desired impedance mode. Reach out with your equipment details for confirmation.
What is supplied in the ASB4128-WRX package, and what accessories must we add?
The loudspeaker is included. Cables, amplifier, mounting hardware, and rigging equipment must be sourced separately.
Does the ASB4128-WRX carry a warranty covering both impedance configurations?
Yes, the warranty applies regardless of impedance mode. Contact Procure.ae for specific warranty terms and regional coverage.
Why does the progressive transition waveguide matter in a medium-power speaker like the ASB4128?
Even at medium power levels, the waveguide ensures consistent pattern control and reduced reflections, delivering clear, focused sound in smaller venues without the acoustic issues of simpler horn designs.
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