Morel Maximo Ultra 603A MKII 3 Way Component Speakers
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The Morel Maximo Ultra 603A MKII is the active (no passive crossovers) version of the Maximo Ultra 603 MKII 6.5-inch 3-way component speaker set, from Morel's Maximo Ultra MKII range. It is intended for DSP or processor-equipped amplifier systems where the woofer, midrange and tweeter are driven independently.
The series overview below describes the passive crossovers used in the standard Maximo Ultra 603 MKII; the 603A MKII box contains the woofers, midranges, tweeters and grilles only.
Key specifications
- Type: 3-way active component set (no passive crossovers supplied)
- Woofer: 6.5", high-grade ferrite magnet, 25mm voice coil
- Midrange: 2.5" (51mm), double neodymium magnet
- Tweeter: 1" (25mm) soft dome, neodymium magnet
- Power handling: 100W, 180W max transient
- Sensitivity: 90.5dB (2.83V/1m)
- Frequency response: 50Hz–20kHz
- Impedance: 4 ohms
- Mounting depth: woofer 60mm, midrange 35mm, tweeter 20mm
Maximo Ultra MKII — series overview
The Morel Maximo Ultra MKII is the latest generation of the long-running Maximo line, aiming to deliver strong sound quality at an accessible price point. Updated component systems build on the performance of earlier versions, with cosmetic refinements to match.
The Maximo Ultra MKII components are designed to fit factory speaker locations in most vehicles. Key design priorities include excellent off-axis dispersion, high resolution and crisp detail — useful where original factory placement limits acoustics.
The 1-inch (25mm) soft dome tweeter and 2.5-inch (51mm) midrange both use Morel's EVC technology for high power handling and natural-sounding response. The 6.5" woofer uses a large 1-inch diameter voice coil and a high-grade ferrite magnet motor for the warm bass character associated with the Morel brand.
The Maximo Ultra MKII range is available in 2-way and 3-way configurations — including the Maximo Ultra 602 HE MKII 6.5-inch 2-way component set — with passive versions using dedicated crossover networks providing up to 100W power handling. The 603A MKII omits those crossovers entirely for active use.
Explore the full range in Morel Maximo Ultra.
Specification
| Nominal Impedance | 4 ohm |
|---|---|
| Power Handling | 100W |
| Max. Transient Power Handling | 180W |
| Sensitivity | (2.83V / 1M) 90.5dB |
| Frequency Response | 50Hz - 20000Hz |
| Voice Coil | Diameter Woofer: (25mm) - Tweeter: (25mm) - Mid: (20mm) |
| Voice Coil | Wire Copper |
| Magnet | System Woofer: High-Grade Ferrite - Tweeter: Neodymium - Mid: Double Neodymium Magnet |
| Mounting Depth | Woofer: 60mm - Tweeter: 20mm - Mid: 35mm |
What's Included
- 2 x Woofers
- 2 x Midrange Speakers
- 2 x Tweeters
- Grilles
Morel
About the Morel MAXIMO ULTRA 603A MKII
From our tech experts at CEN
The Morel Maximo Ultra 603A MKII is an active 3-way component speaker set designed for DSP or processor-equipped amplifier systems. It pairs a 6.5-inch ferrite woofer, a 2.5-inch double-neodymium midrange and a 1-inch soft dome tweeter, rated at 100W RMS and 180W max transient. No passive crossovers are included; each driver is intended to run from its own dedicated amplifier channel.
Who it suits
These speakers suit enthusiasts building an active DSP-based system where the processor manages all crossover duties independently for each driver. Those who prefer a passive setup may want to consider the Maximo Ultra 602 MKII component speakers instead.
Our tech experts advise
A multichannel amplifier with DSP is essential — you will need one channel per driver, six channels in total for a stereo pair. Check mounting depths carefully before ordering: 60mm for the woofer, 35mm for the midrange and 20mm for the tweeter. Nominal impedance is 4 ohms across all three drivers. Installation is priced per vehicle; visit our car audio installation page for details.
Explore the full Morel range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Morel
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Frequently Asked Questions
Q: Does the Maximo Ultra 603A MKII include crossovers?
A: No. The 603A MKII is the active version and the box contains two woofers, two midranges, two tweeters and grilles. A DSP or processor handles the crossover points instead. The 603 MKII is the passive version with crossovers included.
Q: What drivers are in the Maximo Ultra 603A MKII?
A: Two 6.5-inch woofers, two 2.5-inch (51mm) midranges and two 1-inch (25mm) soft dome tweeters.
Q: What mounting depth do the drivers need?
A: The woofer needs 60mm, the midrange 35mm and the tweeter 20mm.
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