CH5720 Marine Speakers: What to Know Before Buying
By BOSS Audio Systems | Life at Full Volume | Published: 2026-10-26
Category: Buying Guides
Considering the BOSS Audio CH5720 for your boat? Learn key specs, fit checks, and trade-offs to decide if these 5x7 speakers suit your marine audio upgrade.
Quick answer
The BOSS Audio CH5720 is a budget-friendly 2-way 5x7 speaker that can work in a marine setting, but before you buy, confirm your mounting depth and consider whether you need full weatherproofing for your boat.
Why the CH5720 may fit your boat audio upgrade
The CH5720 comes from the Chaos Exxtreme series and is built as a 2-way system with a poly injection cone, rubber surround, stamped steel basket, and a 1-inch tweeter. That combination is aimed at delivering clear, full sound for a reasonable price, which makes it an attractive option when you are planning a marine audio upgrade on a budget.
Because it is a 5x7 speaker, it can drop into many factory locations in boats, ATVs, and off-road vehicles that already use that size. The rubber surround adds some durability against moisture, but this is not a fully marine-rated speaker, so you need to weigh that trade-off.
The critical fit check before you buy
The CH5720 has a mounting depth of 2.0625 inches and a mounting hole that measures 4.88 inches. Before you order, measure the cutout in your boat's panel and the space behind it. If your mounting depth is tight, this speaker may not fit without modifications.
Many boats have limited clearance behind the panel, so a shallow-mount speaker is often safer. The CH5720's depth is moderate, so always compare it against your actual space.
Decision rules for the CH5720
- You want an affordable 5x7 upgrade: If your boat already has 5x7 speaker openings and you want better sound than the factory speakers, the CH5720 is a straightforward drop-in candidate at a low price. Confirm the opening size is 4.88 inches before ordering.
- You have limited mounting depth: Measure the space behind the panel. If it is less than 2.0625 inches, the CH5720 will not fit without cutting or using spacers. If depth is tight, look for a shallower 5x7 speaker.
- You need full marine weatherproofing: The CH5720 has a rubber surround that helps, but it is not a fully sealed marine speaker. If your speakers will face constant salt spray or direct rain, choose a speaker with a higher IP rating. For exposed locations, consider a marine-rated speaker with better water protection.
Key CH5720 facts
- CH5720: The CH5720 is a 5" x 7" full range speaker from the Chaos Exxtreme series, built as a 2-way system with a poly injection cone, rubber surround, stamped steel basket, and 1" (25 mm) tweeter. This construction gives you a clear, full sound at a budget price, but the stamped steel basket and non-sealed design mean you should protect it from direct spray if you use it on a boat.
CH5720 - CH5720: Mounting depth is 2.0625 inches and the mounting hole measures 4.88 inches, giving you the key figures needed to check fit before installation. Measure your boat's cutout and clearance before buying, because a depth mismatch can turn a simple upgrade into a custom install.
Is the CH5720 right for you?
Best for
- Boat owners on a budget who want a clear 5x7 speaker upgrade in a dry, protected location
- DIY installers who can measure mounting depth and are comfortable with basic speaker installation
Not for
- Boaters who need fully weatherproof speakers for exposed, spray-prone areas
- Anyone with less than 2.0625 inches of mounting depth behind the panel
