JBL ASB4128-WRC Medium Power Loudspeaker (Each)
The JBL ASB4128-WRC 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-WRC 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-WRC 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
What is the primary function of a medium-power 3-way speaker like the ASB4128 in a PA system?
The ASB4128 serves as a versatile mid-level reinforcement speaker for medium-sized venues, offering flexibility in impedance modes (4 Ohms parallel or 8 Ohms discrete) to match various amplifier configurations.
How does the dual-impedance design of the ASB4128 (4 Ohms parallel / 8 Ohms discrete) benefit system design?
The dual-impedance capability allows you to configure the speaker for different amplifiers and power scenarios. Parallel-drive mode provides higher output; discrete-drive mode offers flexibility with standard 8 Ohm amps.
What venues suit the ASB4128, and where would it be a better choice than a single-impedance speaker?
Restaurants, retail spaces, houses of worship, educational facilities, and mid-sized corporate events benefit from its versatility. Use when you need flexibility to work with existing amplifier systems.
How does the 15-inch Differential Drive woofer handle the dual-impedance switching of the ASB4128?
The Differential Drive is designed to perform reliably in both impedance modes. The woofer maintains consistent bass output whether operated in parallel or discrete configuration.
What care is needed to prevent impedance-related issues when switching between 4 Ohms and 8 Ohms modes?
Always power off the amplifier before changing impedance mode, verify all connections are secure after switching, and test the system at low volume first to confirm proper operation.
Compared to fixed-impedance speakers, does the flexibility of the ASB4128 come with any audio trade-offs?
No significant trade-offs; both modes deliver consistent 103 dB SPL. The dual-impedance design is engineered to perform equally well in either configuration.
What is the delivery timeframe for the ASB4128-WRC to your business location in the UAE?
Lead times depend on stock availability. Contact Procure.ae with your location and requirements to receive a specific delivery estimate.
Does Procure.ae provide guidance on choosing between parallel and discrete-drive mode for a specific venue?
Yes, Procure.ae can advise on impedance configuration based on your amplifier and venue needs. Reach out with your setup details for a recommendation.
What components are included with the ASB4128-WRC, and what must we source separately?
The loudspeaker is supplied. Amplifier, speaker cables (rated for 4 or 8 Ohms per your mode), mounting hardware, and rigging are separate purchases.
Is there a warranty on the ASB4128-WRC, and does it cover both impedance modes?
Warranty applies to both operating modes. Contact Procure.ae for detailed warranty terms and coverage specific to your region.
What makes the 103 dB SPL sensitivity of the ASB4128 suitable for medium-sized venues?
The 103 dB SPL provides strong output for venues up to several hundred people while maintaining clean audio without excessive amplifier power or heat generation.
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