Medium Gladen SIGMA SM 50

Enjoy 5% off pre-order products, automatically applied at checkout.

Offer not valid on MTX Audio, Alpine, Focal, Pioneer, Kenwood, Dynavin, JVC and JBL products.

How to understand the displayed delivery times?

For greater transparency, we display the availability of each product in a box at the top of its product page:

• 🟢 In stock: product available in our warehouse, ready to be shipped.
• 🟠 Pre-order – X business days: average time to receive the product in our warehouse before it is shipped to you.

Delivery times are estimates and may vary depending on suppliers and shipping.

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Upon receipt of the product, your order is automatically prepared and shipped. You will receive tracking information by email.

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🚚 Free delivery on orders over €49 with Chronopost Économique to a pickup point (estimated delivery time of 4 to 10 business days).

Please note: some heavy or bulky parcels cannot be delivered to a pickup point and may require a contribution towards shipping and handling costs.

These costs are automatically calculated and displayed in your cart before you confirm your order.

Other faster delivery methods are also available depending on the products and your delivery address.

📦 Preparation and shipping

In-stock products ordered before 12 p.m. are generally shipped the same day. After 12 p.m., shipping generally takes place on the next business day.

Pickups are available Monday through Friday, excluding holidays.

🚚 Our delivery methods

• Chronopost Économique pickup point: free delivery with purchases of €49 or more (4 to 10 business days).
• Chronopost 24h pickup point: fast delivery to a pickup point.
• 24h home delivery: our only home delivery option. Please note that this delivery method is not considered a guaranteed express delivery.

Delivery times begin once the carrier has accepted the package and are provided as estimates in business days.

Important: check that your product is listed as "In stock" on its product page. For pre-orders, shipping takes place only after the product has been received at our warehouse.

Some heavy or bulky packages may incur additional shipping and handling fees, which are automatically displayed in your cart.

⚠️ Receiving your package

Check the condition of your package before accepting it. In the event of damage, make specific reservations with the carrier or refuse the package if necessary.

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📞 Phone: 09 85 13 66 35

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• Tuesday to Saturday
• Mornings: 9:30 am – 12:00 pm
• Afternoons: 1:30 pm – 6:00 pm

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The Sound Auto Concept Team

Medium Gladen SIGMA SM 50

The SIGMA SM 50 is a high-quality mid-range or full-range speaker.

The SM 50 combines cutting-edge speaker technology with a unique mounting system. This system allows the speaker to be installed both in custom-made interior designs (e.g., on A-pillars) and in confined spaces, within the vehicle's original openings.

Furthermore, the SIGMA SM 50 features a wideband cone offering precise reproduction up to over 20 kHz. Its ventilated voice coil reduces distortion and compression. Its low-loss suspension (high Qm) ensures better detail and dynamics reproduction.

Delivery includes a hexagonal grille for visible mounting.

• 50mm wideband midrange speaker
• 120/80 watts power handling in active operation
• 4 ohms impedance
• Innovative mounting system
• • Size: 50 mm
  • Black anodized aluminum diaphragm
  • Polymer basket
  • Flow-optimized basket design
  • Conex centering spider
  • 19 mm voice coil
  • Stable plug-in terminals
  • Aluminum dust cap
  • Neodymium magnet
  • Fiberglass fabric voice coil former
  • Frequency up to over 20,000 Hz
  • Rubber surround

  Accessories

  • Installation frame with click closure
  • Hexagonal grille
  • OEM grille

  Technical data

  • Diameter: 50 mm
  • Power handling: 120 | 80 Watt (300 Hz | 24 dB/Okt.)
  • Impedance: 4 Ohm
  • Fs: 135 Hz
  • Re: 3.2 Ohm
  • Qms: 7.60
  • Qes: 0.58
  • Qts: 0.54
  • Vas: 0.3 liter
  • Sd: 15.6 cm²
  • Mms: 1.6 g

  Mounting ring

  • Diameter (outer): 65 mm
  • Height (with grille): 7.5 mm
  • Hole diameter: 51 mm