IN STOCK! Bose Professional 829708-0210 DesignMax DM3C In-Ceiling Speakers - Pair (White)
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A complete loudspeaker assortment to fulfill any design
DesignMax loudspeakers have the flexibility and style to deliver outstanding audio and aesthetics for any commercial space. With ten loudspeakers and two subwoofers to choose from — including ceiling-mounted, surface-mounted, and outdoor-rated options — it’s easy to create tailored DesignMax solutions.
Hear the difference
DesignMax loudspeakers deliver instantly impressive sound, no EQ or DSP required. The Dispersion Alignment system on select models ensures a consistent listening experience throughout the room, matching the coverage pattern of the woofer to the wider performance of the tweeter. And enabling SmartBass processing and loudspeaker EQs via select Bose DSPs and amps delivers even better sound at any listening level.
See the difference
Sleek, minimum-bezel grilles, removable logos, and attractive styling allow you to blend DesignMax loudspeakers with any décor. Every DesignMax loudspeaker is available with a black or white grille, which is also paintable.
Feel the difference
For installers, patented QuickHold mounting mechanisms on each DesignMax loudspeaker make the job easier, reducing strain and hassle — and saving substantial time. Instead of balancing the loudspeaker in one hand and a tool in the other, you’ll now have both hands free.
For ceiling-mounted models, simply push the loudspeaker into the ceiling opening. QuickHold mounting arms spring into place, holding the loudspeaker securely as you finish installing it.
From concept and design to installation and operation, Bose Professional DesignMax loudspeakers have the features, style, and flexibility to make every phase of a project more successful — leaving end users more than satisfied with everything they hear... and see.
- Combine models to complete any design, big or small — 12 loudspeakers to mix and match, from 2-inch, low-profile models to 8-inch, high-SPL compression-driver loudspeakers and outdoor-rated options
- Deliver instantly impressive sound with custom Bose drivers — no DSP or EQ required. For even better sound, use select Bose DSPs and amplifiers to enable Bose loudspeaker EQ and SmartBass processing, which expands performance and response at any listening level
- Ensure a consistent listening experience throughout the room with the Dispersion Alignment system, which matches the coverage of the woofer to the pattern of the tweeter
- Blend into any room design with elegant form factors, minimum-bezel grilles available in black or white, and removable logos
- Reduce installation time with the patented QuickHold mounting system, which also reduces strain, hassle, and the chance of product damage
- Install easily — all models include Euroblock connectors; ceiling-mounted models include plenum-rated backcans, tile-bridges, and front-access audio wiring that makes installation and troubleshooting easier
| Frequency Range (-10 dB) | 70 - 20,000 Hz |
|---|---|
| Nominal Coverage Angle | Conical |
| Power Handling, Long-term Continuous | Bose extended-lifecycle test: 25W AES component test: 30W |
| Calculated Maximum SPL @ 1 m | Bose extended-lifecycle test: 99 dB AES component test: 100 dB |
| Transformer Taps | 70V: 3, 6, 12, 25 W, bypass 100V: 6, 12, 25 W, bypass |
| Nominal Impedance | 8 ohms (transformer bypass) |
| Dimensions (Dia x D) | 8" (203 mm) x 5.7" (144 mm) |
| Dimensions with Backcan (H x W x D) | 13.35" (339 mm) x 13.35" (339 mm) x 9.8" (249 mm) |
Sizing Reference
The following size conversions are provided as a general reference. Fit and sizing may vary by designer, style, and construction. For additional assistance, our concierge team is available to help.
Women | Men | Footwear | Men’s Belts | Women’s Belts
Women’s Apparel
| US Size | IT Size | EU Size | JP Size | CN Size |
|---|---|---|---|---|
| 0 | 36 | 32 | 5 | 155/76A |
| 2 | 38 | 34 | 7 | 155/80A |
| 4 | 40 | 36 | 9 | 160/84A |
| 6 | 42 | 38 | 11 | 165/88A |
| 8 | 44 | 40 | 13 | 170/92A |
| 10 | 46 | 42 | 15 | 175/96A |
| 12 | 48 | 44 | 17 | 175/100A |
| 14 | 50 | 46 | 19 | 180/104A |
Men’s Apparel
| US Size | IT Size | EU Size | JP Size | CN Size |
|---|---|---|---|---|
| XS | 44 | 44 | S | 165/84A |
| S | 46 | 46 | M | 170/88A |
| M | 48 | 48 | L | 175/92A |
| L | 50 | 50 | LL | 180/96A |
| XL | 52 | 52 | 3L | 185/100A |
| XXL | 54 | 54 | 4L | 190/104A |
Footwear — Size Conversion
| EU | US Women | US Men | UK | IT | JP (cm) | CN |
|---|---|---|---|---|---|---|
| 35 | 5 | 3.5 | 2.5 | 35 | 22 | 220 |
| 36 | 5.5 | 4 | 3 | 36 | 22.5 | 225 |
| 36.5 | 6 | 4.5 | 3.5 | 36.5 | 23 | 230 |
| 37 | 6.5 | 5 | 4 | 37 | 23.5 | 235 |
| 38 | 7 | 5.5 | 4.5 | 38 | 24 | 240 |
| 38.5 | 7.5 | 6 | 5 | 38.5 | 24.5 | 245 |
| 39 | 8 | 6.5 | 5.5 | 39 | 25 | 250 |
| 40 | 8.5 | 7 | 6 | 40 | 25.5 | 255 |
| 40.5 | 9 | 7.5 | 6.5 | 40.5 | 26 | 260 |
| 41 | 9.5 | 8 | 7 | 41 | 26.5 | 265 |
| 42 | 10 | 8.5 | 7.5 | 42 | 27 | 270 |
| 42.5 | 10.5 | 9 | 8 | 42.5 | 27.5 | 275 |
| 43 | 11 | 9.5 | 8.5 | 43 | 28 | 280 |
| 44 | 11.5 | 10 | 9 | 44 | 28.5 | 285 |
| 44.5 | 12 | 10.5 | 9.5 | 44.5 | 29 | 290 |
| 45 | 12.5 | 11 | 10 | 45 | 29.5 | 295 |
| 46 | 13 | 12 | 11 | 46 | 30 | 300 |
| 47 | 13.5 | 12.5 | 11.5 | 47 | 30.5 | 305 |
| 48 | 14 | 13 | 12 | 48 | 31 | 310 |
Most luxury footwear uses EU sizing. Always refer to the designer’s fit notes, as sizing may vary slightly by brand and style.
How to Measure Your Foot
-
Place your foot flat on a piece of paper against a wall.
-
Mark the tip of your longest toe.
-
Measure the distance from the wall to the mark in centimeters (cm).
-
Match that measurement to the JP (cm) column in the chart above.
Example explanation you could place below the chart:
The JP column represents foot length in centimeters. If your foot measures approximately 25 cm, you would typically wear EU 39 / US Women 8. Because designer sizing can vary slightly, this method provides the most accurate reference when selecting luxury footwear.
👔 Men’s Belt Size Conversion
| US Waist (in) | EU / IT Belt Size | Waist (cm) |
|---|---|---|
| 28–30 | 85 | 71–76 |
| 30–32 | 90 | 76–81 |
| 32–34 | 95 | 81–86 |
| 34–36 | 100 | 86–91 |
| 36–38 | 105 | 91–97 |
| 38–40 | 110 | 97–102 |
| 40–42 | 115 | 102–107 |
| 42–44 | 120 | 107–112 |
👗 Women’s Belt Size Conversion
| US Size | US Waist (in) | EU / IT Belt Size | Waist (cm) |
|---|---|---|---|
| XS | 24–26 | 75 | 61–66 |
| S | 26–28 | 80 | 66–71 |
| M | 28–30 | 85 | 71–76 |
| L | 30–32 | 90 | 76–81 |
| XL | 32–34 | 95 | 81–86 |
| XXL | 34–36 | 100 | 86–91 |
For personalized sizing guidance, our concierge team is available to assist with any questions before purchase.
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Shipping information
- Free Shipping* on all orders over $300 USD to most countries* Estimated delivery: 2-5 business days Mon-Sat to U.S., CA, EU etc.
- Tracking available: DHL Express
- Store 7994 Shipping policy
- Global delivery in 3–9 business days (location dependent).
- Free Worldwide Shipping $300+. International duties & VAT are calculated by destination country and may be collected upon delivery. UK orders are subject to 20% import VAT upon delivery.
Returns & Refunds
We want you to shop with confidence at STORE 7994. If your purchase does not meet expectations, eligible items may be returned under the conditions below.
Return Eligibility
Items must be unused, unworn, unwashed, and in their original condition, with all tags, packaging, accessories, authenticity materials, and documentation included. Items showing signs of wear, alteration, damage, or use will not be accepted.
Return Window
For orders delivered within the United States, return requests must be initiated within 10 calendar days of delivery.
For orders delivered within the European Union and other international destinations, return requests must be initiated within 14 calendar days of delivery.
Where applicable consumer-protection laws provide additional mandatory rights, those requirements will apply.
Return Shipping
Customers are responsible for return shipping costs when returning an item because of preference, sizing, fit, or a change of mind.
If an item arrives defective, damaged, incorrect, or materially different from what was ordered, STORE 7994 will arrange an appropriate return method at no additional cost.
Luxury Items
A 7% restocking fee applies to approved discretionary returns of merchandise with a purchase price exceeding $1,000 USD. The fee will be deducted from the refund.
This restocking fee does not apply to items confirmed to have arrived damaged, defective, incorrect, or materially different from what was ordered.
Non-Returnable Items
For hygiene and product-integrity reasons, the following items are final sale once opened or used:
- Underwear and intimate apparel
- Perfumes, colognes, fragrances, and personal-care products
- Merchandise identified as final sale or non-returnable
- Any item that has been worn, washed, used, altered, or damaged after delivery
These exclusions do not limit any rights relating to merchandise received damaged, defective, or incorrect.
Made-to-Order Items
Custom-designed, personalized, and made-to-order products—including STORE 7994 signature and custom hoodies—are created specifically for each customer and are final sale.
These items are not eligible for return or exchange unless they arrive defective, damaged, incorrect, or materially different from what was ordered. If you experience an issue, please contact us and we will make it right.
International Shipping & Duties
Many of our products ship directly from trusted international partners. Any applicable customs duties, import taxes, or related charges may be displayed or calculated at checkout.
Where applicable, these government-imposed charges are generally non-refundable unless reimbursement is required by law or authorized by the appropriate customs authority.
Refunds & Applicable Deductions
STORE 7994 does not charge a standard return-processing fee.
Approved refunds are issued to the original payment method after the returned merchandise has been received and inspected. Please allow up to 10 business days for refund processing.
Any applicable and previously disclosed luxury-item restocking fee, return-label cost, or non-refundable international charge will be reflected in the final refund amount.
Shipping Policy
Complimentary shipping is offered on orders over $300. Orders below this threshold are subject to the standard shipping rates displayed at checkout.
