SKU: 77349016913

Hertz 4 x 50W HMP 4D 4 Channel Marine IP64 Amplifier - 12V

Sale price$167.40 Regular price$186.00
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Ships within 48 hours · Estimated delivery Aug 28 - Sep 2

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Description

Hertz 4 x 50W HMP 4D 4 Channel Marine IP64 Amplifier - 12VIP Protection: IP64 Supply Voltage: 11 15VDC Fuse: 1 x 15A Idle Power (on off): 1A 0. 04mA Max Power Consumption: 15A Size: 223 x 100 x 44mm (8. 77 x 3. 95 x 1. 7\") RMS Output Power: 4 x 50W (at 4) Thanks to the ultra compact cast aluminium chassis (IP64 rated) the HMP 4D amplifier is nature proof being the ideal choice for marine installations. It features an incredible power size ratio and an easy setup thanks to the integrated crossover filter.

  • IP Protection: IP64
  • Supply Voltage: 11 - 15VDC
  • Fuse: 1 x 15A
  • Idle Power (on/off): 1A / 0.04mA
  • Max Power Consumption: 15A
  • Size:223 x 100 x 44mm (8.77 x 3.95 x 1.7\")
  • RMS Output Power: 4 x 50W (at 4Ω)

Thanks to the ultra-compact cast-aluminium chassis (IP64 rated) the HMP 4D amplifier is nature-proof being the ideal choice for marine installations. It features an incredible power/size ratio and an easy setup thanks to the integrated crossover filter.

The Front End section features a complete and bypassable crossover system providing full system design flexibility with or without external processors offering the user endless connection possibilities with any source. Inputs feature a special balanced circuitry ensuring high rejection against electro-magnetic interferences for noise-free results.

Water Jet Tested

The protection grade IP64 define all the Hertz Marine products as totally protected against water jets of different entities making them highly performant in the marine environment.

Corrosion Protection

Electronics components corrosion caused by exposure in wet environments is totally neutralized by the use of dedicated marine grade (epoxy coated) PCB boards.

Salt Fog Tested

To satisfy the standards required by ASTM-B117 Hertz Marine products are tested with massive salt fog spray to ensure a complete resistance to corrosion typical of this atmospheric agent.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 77349016913

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4.2 ★★★★★
Based on 9 reviews
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Verified Purchase
Dog Lover
West Palm Beach, US
★★★★★ 5
Truly for Aggressive Chewers
Size: Large (Pack of 1), Product Packaging: Standard Packaging
Excellent product for aggressive chewers. The black Kong doesn't last forever BUT it is the most reliable toy I've used with my 60# pitt mix. I've returned so many toys that were advertised as for this girl's level of enthusiasm that I no longer buy anything else.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
M
Verified Purchase
Michael Steinmeyer
Louisville, US
★★★★★ 5
Great toy
Size: Large (Pack of 1), Product Packaging: Standard Packaging
Solid toy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
N
Verified Purchase
NurseUrsy
Alexandria, US
★★★★★ 5
Excellent tug toy!
Size: Large Triple, Size: Large Triple
My dog had this set of 3 interlocking rings for 7 years and they finally broke. I was so happy to be able to get a replacement set that is just as durable as the original! Just ask our Gretzky to, “get your rings” and she knows exactly what to find. She can tug these for an hour and not lose interest. She loves them. They are the perfect size for her to grab comfortably and for her human playmate to hold onto the other ring in opposition. Gretzky is half Boxer, about 85lbs and all muscle. For her first set to withstand years of tugging without breaking was surprising but they’re made well and as long as you don’t allow your dog to just sit and chew them, they’ll give you years of tugging playtime!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
E
Verified Purchase
Emily S.
Lake Worth, US
★★★★★ 5
Simple! Easy! All We Needed!!
Size: Large Triple
These were the only durable rubber like rings that were both the same material; not too thick (not heavy) so my 1 year old Pit, Dixie, was able to latch on to one ring while we grabbed the third ring, leaving enough space so she won't accidentally bite us when grabbing the rings to play. They were also the only ones that came interlocked and cannot be taken apart. She is also a big chewer, which means she can gnaw on these without tearing them apart. The rubber is thick enough to play, but thin enough to twist and flex with her. So far, they are sturdy. She was immediately so excited! Simple and easy!
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Reviewed in the United States on May 8, 2026
C
Verified Purchase
Cindy
Lowell, US
★★★★★ 5
Great durable dog toy!!
Size: Large Triple
We have a medium-sized dog (45 lb mixed Aussie/Hound) who is a pretty aggressive chewer. He also loves playing tug-of-war with his canine and human siblings using these rings. This is easily his favorite toy. We bought one a little over a year ago that he plays with daily. If finally broke this December just in time to buy a replacement for Christmas! The prior one finally broke when the middle ring came apart at one of the thinner rubber points. He still plays with the intact outer rings as well as his new toy. I wanted to dock this 1/2 star for a few reasons: 1) it is not completely invincible, although I would argue a toy that lasts over a year with pretty constant play for an $11 price tag is a great value. 2) the one we received is not yellow/black. It is blue/green. I was personally thrilled it was blue/green because it ended up being an exact replacement of the one we had previously. However the description does not say "colors vary" and it was hard for me to tell when ordering if I was ordering the correct replacement toy. A clearer description would be appreciated. 3) This is a great toy for one dog, but our other dobbie/cattle dog mix has no interest in them. So not all dogs will love this toy (obviously). 4.5 stars isn't an option so I'm giving this 5 stars because it's just about as close to a perfect dog toy as one can buy (at least for our dog).
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Reviewed in the United States on December 31, 2016

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