CH6940 vs CH6CK: Which Marine Speaker Fits Your Setup?

Quick answer

Choose the CH6CK if you want a simpler 2-way component design with a single 1-inch tweeter and a published mounting depth. Choose the CH6940 if you want a 4-way speaker with dedicated midrange and dual tweeters for more driver coverage in an easy-to-fit location.

Driver count and tweeter layout change the sound character

The CH6940 splits the audio across four drivers: a 2.5-inch midrange, a 0.98-inch tweeter, and a 0.51-inch tweeter, all above a poly injection cone with a rubber surround. That layout can give vocals and instruments more dedicated reproduction paths than a simpler two-way design, which is useful if you want detail without adding separate component tweeters.

The CH6CK uses a 2-way system with a single 1-inch tweeter. Fewer drivers mean fewer crossover points and a more straightforward installation, but it also means the woofer and tweeter share more of the frequency range. Neither speaker is inherently better; the trade-off is complexity and driver coverage versus simplicity.

Mounting depth is the deciding spec when space is tight

The CH6CK lists a mounting depth in its catalog facts, so you can measure your cavity before ordering. The CH6940 catalog facts do not list a mounting depth, which means you should confirm clearance with the seller or measure your opening before committing. That missing spec is a real decision limitation, not a reason to assume the speaker fits.

Both speakers use a stamped steel basket and a poly injection cone with rubber surround, so the frame and cone materials are comparable. The practical difference is that the CH6CK gives you a published depth figure to plan around, while the CH6940 requires you to verify fit yourself.

Price and power figures do not tell the whole story

The CH6940 is listed at USD 36.28 against a comparison price of USD 58.51, and the CH6CK is listed at USD 40.88 against a comparison price of USD 55.24. Those catalog prices are close enough that price alone should not decide the comparison. The CH6CK catalog also lists a total power output of 350, but without a matching figure for the CH6940 you cannot use power handling to rank them fairly.

Treat the price difference as a tiebreaker, not a headline. Focus on whether you want the 4-way driver layout of the CH6940 or the simpler 2-way component design and published mounting depth of the CH6CK.

Trade-offs to weigh before you buy

• Driver complexity: The CH6940's 4-way layout adds a midrange and a second tweeter, which can improve separation but adds crossover complexity. The CH6CK's 2-way design is simpler and easier to integrate. Pick the simpler 2-way if you want fewer variables in the install.
• Mounting information: The CH6CK lists a mounting depth; the CH6940 does not. Measure your opening and confirm depth with the seller before ordering the CH6940. No published depth means you must verify fit yourself.
• Price versus features: At USD 36.28 and USD 40.88 respectively, the CH6940 and CH6CK sit in a similar price band. The CH6CK's listed 350 total power output is a spec to check against your amplifier, not a reason to pay more. Use price only as a tiebreaker after fit and layout.

Product facts

• CH6940: 4-way system with a 2.5-inch midrange, 0.98-inch tweeter, and 0.51-inch tweeter. More dedicated drivers can reproduce midrange and high frequencies separately, which suits listeners who want detail without adding external tweeters.

  

• CH6CK: 2-way component speaker with a 1-inch tweeter and a listed mounting depth. A published mounting depth lets you check cavity clearance before buying, reducing the risk of a return.

  

Which marine speaker fits your setup?

Best for

• Listeners who want a 4-way driver layout with a dedicated midrange and dual tweeters
• Builds where the mounting cavity depth is already confirmed or easy to measure

Not for

• Buyers who need a published mounting depth before ordering
• Installations where a simpler 2-way component design is preferred