Customer service: Mon.–Sat. • 9:30 a.m.–12 p.m. / 1:30 p.m.–6 p.m. • 09 85 13 66 35

Current promotions! Discover our leading brands at reduced prices!

500 watts RMS
12% off
Reiss Audio  |  SKU: RS-MB12QS4

Reiss RS-MB12QS4 - 12 inch 4 Ohm 500W RMS 99dB Midbass Speaker

€139.92 €159.00
Tax included Shipping calculated at checkout.

Pre-order - Lead times and availability

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.

We do our best to provide you with clear and reliable information so that you can order with full knowledge of the situation.

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

Need fast delivery? Choose "In stock" products.

Free delivery from €49*

🚚 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.

Delivery information

📦 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.

If you experience any problems, please contact our customer service team promptly.

Advisory Service

Unsure about choosing a product or its compatibility? Our team is here to help!

📞 Phone: 09 85 13 66 35

💬 Live chat: directly on our website.

🕒 Our hours:

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

Need help choosing your equipment?

Our advisors can guide you and even prepare your cart directly via chat, with products tailored to your needs.

💪 Take advantage of our technical expertise to order with complete confidence!

The Sound Auto Concept Team

Description

Highlights

  • High-performance 30cm (12") midbass speaker 500W RMS
  • Exceptional sensitivity of 99dB for maximum output
  • 2.5" (63.5mm) voice coil for optimal thermal management
  • Massive Ø 220mm magnet for powerful control
  • High resonant frequency (57.7Hz) ideal for active installations
  • Very low Qts (0.242) optimized for compact sealed enclosures
  • Ultra-robust 7.8kg construction guaranteeing reliability

Description

The Reiss RS-MB12QS4 is a 30cm midbass speaker specially designed for high-performance active and SPL installations. With its exceptional sensitivity of 99dB and 500W RMS power, it delivers powerful, precise and dynamic mids and lows. Its high resonant frequency (57.7Hz) and very low Qts (0.242) make it the ideal choice for active systems with active crossovers and compact sealed enclosures.

Main features:

  • 30cm (12") high-performance midbass for powerful lows and mids
  • 99dB sensitivity guarantees exceptional output
  • 55Hz-5kHz frequency response optimized for active installations
  • 2.5" (63.5mm) voice coil for exceptional thermal dissipation
  • Massive Ø 220mm magnet for optimal control and dynamics
  • Resonant frequency (Fs) of 57.7Hz ideal for active crossover
  • Qts of 0.242 suitable for compact sealed enclosures
  • Equivalent volume (Vas) of 64.3L for precise enclosure sizing
  • Diaphragm surface area (Sd) of 52.3 cm² for optimal air displacement
  • Light moving mass (Mms) of 45.9g for optimal responsiveness
  • Compliance (Cms) of 165.9 µm/N for controlled excursion
  • Ultra-robust 7.8kg construction guaranteeing reliability

Technical specifications

Type Midbass speaker
Diameter 30cm (12")
RMS Power 500W
MAX Power 1000W
Impedance 4 Ohms
Sensitivity 99 dB
Frequency Response 55 Hz - 5 kHz
Resonant Frequency (Fs) 57.7 Hz
Re (Voice coil resistance) 3.2 Ohms
Qes 0.245
Qms 17.522
Qts 0.242
Vas 64.3 L
Cms (Compliance) 165.9 µm/N
Mms (Moving mass) 45.9 g
Sd (Diaphragm surface) 52.3 cm²
Voice coil diameter 2.5" (63.5mm)
Magnet size Ø 220 mm
Outer diameter Ø 320 mm
Mounting depth 126 mm
Mounting diameter Ø 282 mm
Weight 7.8 kg

Why choose it

  • Exceptional sensitivity of 99dB for impressive sound levels
  • 500W RMS power for extreme dynamic performance
  • High resonant frequency (57.7Hz) perfect for active installations with subwoofer
  • Very low Qts (0.242) ideal for high-performance compact sealed enclosures
  • 2.5" voice coil for exceptional thermal management
  • Massive 220mm magnet guarantees control and dynamics
  • Light moving mass (45.9g) for responsiveness and precision
  • Frequency extension up to 5kHz for detailed mids
  • Ultra-robust 7.8kg construction guarantees reliability in extreme conditions
  • Reiss brand renowned for excellent value for money
  • Ideal for high-performance active and SPL systems

Documentation

Official Reiss Audio Website 

Very popular at the moment
Many people are looking at this product right now.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • Bizum
  • BLIK
  • Cartes Bancaires
  • EPS
  • Google Pay
  • Mastercard
  • MB WAY
  • MobilePay
  • PayPal
  • Satispay
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store your credit card details and do not have access to your credit card information.

Reiss Audio

Reiss RS-MB12QS4 - 12 inch 4 Ohm 500W RMS 99dB Midbass Speaker

€139.92 €159.00

Highlights

Description

The Reiss RS-MB12QS4 is a 30cm midbass speaker specially designed for high-performance active and SPL installations. With its exceptional sensitivity of 99dB and 500W RMS power, it delivers powerful, precise and dynamic mids and lows. Its high resonant frequency (57.7Hz) and very low Qts (0.242) make it the ideal choice for active systems with active crossovers and compact sealed enclosures.

Main features:

Technical specifications

Type Midbass speaker
Diameter 30cm (12")
RMS Power 500W
MAX Power 1000W
Impedance 4 Ohms
Sensitivity 99 dB
Frequency Response 55 Hz - 5 kHz
Resonant Frequency (Fs) 57.7 Hz
Re (Voice coil resistance) 3.2 Ohms
Qes 0.245
Qms 17.522
Qts 0.242
Vas 64.3 L
Cms (Compliance) 165.9 µm/N
Mms (Moving mass) 45.9 g
Sd (Diaphragm surface) 52.3 cm²
Voice coil diameter 2.5" (63.5mm)
Magnet size Ø 220 mm
Outer diameter Ø 320 mm
Mounting depth 126 mm
Mounting diameter Ø 282 mm
Weight 7.8 kg

Why choose it

Documentation

Official Reiss Audio Website 

View product