Question 1

What is the Blackline S218+?

Accepted Answer

The powerful Blackline S218+ sub-bass system has been designed to be
used with large scale Blackline F12+ and F15+ systems to extend and
increase the total low frequency output power. It can also be used as
the low frequency section of a bi-amped or tri-amped H3+ system. The
S218+ provides good bass punch with extended sub-bass output from two
new, long-excursion, 18” (460mm)/4” (100mm) voice coil drivers with
water resistant cones and triple roll surrounds. It is a Subwoofers product manufactured by Martin Audio, available through professional sellers on GearSource.

Question 2

Who manufactures the Blackline S218+?

Accepted Answer

The Blackline S218+ is made by Martin Audio — Martin Audio celebrated its 50th anniversary in 2021 and enjoys an international reputation for supplying award winning, Patent protected professional loudspeaker systems.

Question 3

What years was the Blackline S218+ produced?

Accepted Answer

The Blackline S218+ was produced . Browse current listings above to see what's available today.

Question 4

How do I buy the Blackline S218+ on GearSource?

Accepted Answer

Browse the listings on this page and select the option that best matches your condition, budget, and location. Proceed through checkout to purchase directly from the seller. Have questions before you buy? Reach our team via live chat or at cx@gearsource.com.

Question 5

Can I sell a Blackline S218+ on GearSource?

Accepted Answer

Yes — GearSource welcomes listings for the Blackline S218+ from professional sellers worldwide. Create a free account, complete your seller profile, and list your equipment to connect with a global network of professional buyers. Need help getting started? Contact us at cx@gearsource.com or via live chat.

Question 6

What is the return policy?

Accepted Answer

All purchases on GearSource are backed by the Buyer GEARantee. Once your item is delivered, you have 48 business hours to inspect it and report any issues — such as shipping damage or an item not matching its description — to the Claims & Customer Experience team. If you and the seller can't reach an agreement, GearSource's Conflict Resolution team will mediate. See our Claims Policy at gearsource.com/p/claims-policy or contact cx@gearsource.com for help.

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Blackline S218+

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