FlowTheory SD CB7 Speaker Adapters — Pair
Send us your exact speaker brand, model and Accord body style. We'll review your setup before recommending an adapter.
What's included
One pair of black, single-piece PETG front-door speaker adapters, plus matching door-side spacer(s) for an approved 1990–1993 Honda Accord configuration. Reuses the vehicle's original door screws; replacement screws are not supplied.
Speakers, weather cups and replacement screws are not included. Red weather cups pictured in installation photos are a separate accessory.
Fitment & technical details
Available adapter thicknesses: 12 mm, 17 mm or 22 mm. Exact speaker brand, model, vehicle body style and adapter revision must be reviewed. Nominal speaker size alone does not establish compatibility; 22 mm is not a universal fit.
Reviews consider speaker flange, mounting holes, basket, magnet, door trim and window travel. In our test vehicle, the adapter and speaker together sat about 25 mm forward of the mounting surface. Your result depends on the speaker you choose. Check factory screw seating and adequate thread engagement with the supplied spacers.
See the 3D Fitment Center for weather cup depth measurements.
Speaker weather cups — pair
Sold separately, subject to speaker and door clearance review.
Ask us about weather cups for your speaker and door setup.
Tell us which speakers you're running
Each adapter is printed as a single piece, with its speaker-side geometry designed around your specific model. These details help us review fitment before production.
Nominal size alone does not establish fitment. Mounting pattern, basket shape, magnet clearance, door trim and window travel vary. No universal compatibility is promised.
Ordering is available only for configurations FlowTheory SD has approved for manufacture. We will review your exact model details before production; submitting an unverified model does not confirm compatibility.
Your speaker details go with the order, for the thickness selected above. We check them within 2 business days, before we print.
Designed for CB7 front-door speaker mounting projects. Other positions and body styles require independent compatibility review. Weather cups are sold separately and are not included with the adapter pair.
Browse the CB7 speaker compatibility library and measurement guide
3D fit preview
See your speaker in the CB7 door
Pick an adapter thickness, add a weather cup if you use one, and enter your speaker's measurements. Where to find them.
Find your speakerPick it from our library to fill the numbers below, or enter them from your drawing.
Clearance by thickness
A visual guide, not a fit guarantee. Basket shape, terminals, magnet position and mounting holes still need a fitment review before you order. Request a fitment review.
Common questions
CB7 speaker fitment FAQ
Will 6.5-inch speakers fit a CB7 front door?
It depends on the speaker, not the size label. Two 6.5-inch speakers can differ in depth, basket shape and mounting holes. Measure the rear depth and front height and check them in the clearance calculator, or send us the exact model for a fitment review.
Do I need weather cups?
They are optional. They help keep water inside the door off the back of the speaker. If you use them, check the magnet diameter: up to 94 mm uses the 46 mm cup depth, and up to 108 mm uses the 40 mm upper step. Wider magnets need a custom review.
Which adapter thickness should I choose?
A thicker adapter gives more room behind the speaker and less in front. Pick the thinnest one that leaves room behind the speaker, then confirm the front still clears the door card. Without weather cups, room behind is 49 + thickness − rear depth, and room in front is 28 − thickness − front height.
Are screws included?
The adapters reuse your car's original door screws, and matching door-side spacers are included. Replacement screws are not supplied.
What are the adapters made of?
Each adapter is a single piece of black PETG, sold as a pair and made to order in San Diego.
Do weather cups come with the adapters?
No. The weather cups are a separate product, sold as a pair.
Made to order & delivery
Speaker-specific designs require a fitment review before production. We will confirm material, lead time and shipping details for your exact configuration before accepting an order.
Damaged-item returns
If your item arrives damaged, contact FlowTheory SD about a return. Include your order number and a link to photos of the damage.