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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
Jbl Ma4505 5 Channel Amplifier 1800w PeakJBL MA4505 5 Channel Amplifier 1800W Peak Model: MA4505 Speaker level and low level inputs let JBL Apex amplifiers integrate with just about any audio input. JBLMarine amps feature selectable all , high , or low pass crossovers with variable electronic frequency adjustment to allow for fine tuning multiple system configurations. JBL power and performance at an affordable price point. Product family look and feel to meet the needs of our JBL cutomers.
JBL MA4505 5 Channel Amplifier
1800W Peak
Model: MA4505- Speaker-level and low-level inputs let JBL Apex amplifiers integrate with just about any audio input.
- JBLMarine amps feature selectable all-, high-, or low-pass crossovers with variable electronic frequency adjustment to allow for fine-tuning multiple system configurations.
- JBL power and performance at an affordable price point.
- Product family look and feel to meet the needs of our JBL cutomers.
- JBL Marine amplifiers are engineered to withstand harsh marine conditions, with fully ""marinzed"" circuit boards to ensure flawless power delivery, year after year
- Onbard 12dB electronic crossovers, with slectable full-range, high-pass & low-pass switching, provide tuning options for systems of any size
- Output power is perfectly matched to meet the needs for your JBL marine products
- JBL Marine amplifiers feature a slim chassis and a small footprint to allow for installation in tight spaces
New weather-resistant & high-performance JBL Marine amplifiers deliver impressive power from a compact chassis designed to withstand outdoor environments. Available with 4-channel and 5-channel outputs. JBL Marine amplifiers incorporate our latest amplifier topology that includes selectable all-, high-, or low-pass crossovers with variable electronic frequency adjustment for precision system tuning. Engineered for harsh marine conditions, with power and performance to meet the needs of any outdoor audio system, JBL Marine amplifiers are the perfect match for all of your JBL marine products.
Specifications| Max Power | 1800W peak |
| RMS Power Output @ 2? (subwoofer) | 500W x 1, <1% THD+N |
| RMS Power Output @ 4? (subwoofer) | 320W x 1, <1% THD+N |
| RMS Power Output @ 2? (full-range) | 65W x 4, <1% THD+N |
| RMS Power Output @ 4? (full-range) | 45W x 4, <1% THD+N |
| RMS Power Output @ 4? Bridged (full-range) | 130W x 2, <1% THD+N |
| Signal-to-Noise Ratio (sub) | >80dB (ref 1W output @ 4?) |
| Signal-to-Noise Ratio (full-range) | >80dB (ref 1W output @ 4?) |
What's in the Box:
- 1 amplifier
- Stainless steel mounting hardware
- Rubber inserts
- 4 High-level input adapters
- 3 spare fuses
- 2 2-color brand stickers
- Quick start guide
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 1224 reviews
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Product Reviews
★★★★★ 5
Good
Color: Black, Size: 6 Panel
Love it , just what so needed , easy to put together (some what ) …
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Reviewed in the United States on May 16, 2026
★★★★★ 3
Decent for the price. Instructions suck but most people should be able to figure it out. More below.
Color: Black, Size: 6 Panel, Color: Black, Size: 6 Panel
SUMMARY:
3 stars from me because it's firmly average. It's fine for the price. Assembly and materials are alright but I can see some caveats depending on your circumstances. Assembly instructions do a subpar job of pointing out some details.
ASSEMBLY INSTRUCTIONS:
Maybe it's because I'm autistic and/or building model kits and assembling stuff is my jam, but I honestly thought people were exaggerating when they were complaining about the instructions and I'd be able to flex my ~superior assembly skills.~ I was wrong! These instructions genuinely suck, and whoever is responsible for making them should be ashamed.
The instructions do a poor job of calling out some details regarding orientation of parts, and some of the images do not actually match the physical parts.
For example, it does not really outline the assembly of the end panels clearly, and I can see someone accidentally using the wrong poles. I've drawn over a photo to show what you should do to try and make it clearer. Additionally, the manual shows a flathead screw for bolting the feet into position, but the actual screw is not a flathead. It also does not point out the counterbore, so if you aren't paying attention you may put the foot pads onto the wrong side of the foot. It's also missing the fact that you need to use another one of the plastic pieces when you finish assembling a panel.
ACTUAL ASSEMBLY & MATERIALS:
To their credit, all of my bags were clearly labeled. The assembly process wasn't difficult. It's mostly just tedious and requires a fair amount of space. I was able to assemble it by myself without any real difficulty. However, the way it's assembled means two things.
One, the fabric parts aren't removable without disassembly. So if you want to use this in an environment where they would require cleaning, I would seriously recommend looking for another option. Or, you could buy this just to use the frame pieces and then somehow buy or make your own fabric pieces designed to be removable with velcro or something.
Two, because of the materials I really don't have a lot of faith in this thing surviving disassembly and reassembly. Like a lot of sorta-cheap-but-convenient furniture, it uses those spring-button connections and plastic inserts with self-tapping screws. Those things are not really meant to be disassembled and rethreaded. It also relies a lot on the tension of the poles and the fabric to keep everything rigid and squared, which I think puts a lot of pressure on the aforementioned buttons, plastic inserts, and the hollow metal rods. So I feel like that will also cause issues with disassembly and reassembly.
Basically once this thing is assembled, it's not really meant to be disassembled. The best you can do is spot-clean the fabric if you need to.
Speaking of the fabric, I didn't see any labels on them or anything in the manual that says what they are, but they feel like some kind of polyester. They generate static electricity pretty easily, and pet hair and debris sticks easily. So that's another downside of them not being easily removable.
For the most part it does seem pretty stable. The poles seem to be pretty uniform in length so they're all making contact with my floor. Obviously this isn't structural so it shouldn't be supporting anything, but the two main feet seem to be doing fine with keeping this thing upright.
CLOSING THOUGHTS:
Really, it's fine for what it is, but it could be better in a lot of little ways and the substandard quality of the instructions just seems unprofessional to me, which is why I'm being so harsh with my rating. Depending on your needs and environment you may want to consider a different option. Preferably one that is made to be disassembled with better materials, and/or one with fabric pieces made to be removed easily.
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Reviewed in the United States on May 28, 2023
★★★★★ 1
Not as it seems
Color: Black, Size: 6 Panel
these are awful... Each individual panel is fine, but when you put it together it can barely stand up, and the clips that hold it together keep popping off. Steer clear of this item.
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Reviewed in the United States on April 7, 2026
★★★★★ 5
As described
Color: White, Size: 6 Panel
Works great in my clinic
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Review
Size: 6Ft-without USB
Nice surge protector. Really like the amount of outlets. The big seller is the rotating plug.
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Reviewed in the United States on May 16, 2026