RTX84 Medium

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 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.

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

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📞 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

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The Sound Auto Concept Team

RTX Series 20cm 8” 150W RMS 4Ω High Efficiency Midrange (Sold Individually)

The MTX RTX84 midrange is a 20cm (8”) high-efficiency speaker. With little power, it reproduces a lot of sound. It supports 150W RMS with an efficiency of nearly 98dB. It is intended for SQL type installations and open-door PA systems. The sound is very powerful and very "Live". It shines with a striking realism, its softness and its exceptional musicality. Although very efficient, it is never brutal or aggressive. Its large 51mm voice coil, its ogive to combat standing waves, its extra large magnetic structure (Ø134mm), its pleated fabric suspension and its pressed paper membrane are all assets that contribute to the sound quality and performance of the transducer.
Please note that the RTX84 is sold individually. Therefore, two RTX84s are required for right-left stereo. You will also need two MTX RTX2BTs or RTX4BTs tweeters for the treble.

• Exceptional sound quality with incredible musical sense
• Extra large Ø51mm coil for high power handling
• Super large strontium magnet Ø134mm for better membrane control and more power handling
• Compressed paper membrane for greater efficiency, smoothness and sound quality
• Fabric suspension treated for better efficiency
• Highly detailed medium
• Good response in the bass
• Easy to install, it is suitable for the original 20cm locations
• Sold individually - Two RTX84s are required for stereo
• Optimized to work with MTX RTX2BTs or RTX4BTs tweeters
• Optimized to work with MTX TR275 TX2275 TR450 TX2450 TX480D RFL4120 RFL5300 amplifiers
• High efficiency bass midrange
• Diameter: 20cm (8")
• Peak power: 600W
• RMS power: 150W
• Sensitivity: 97.7dB/2.83v/1m
• Impedance: 4Ω
• Frequency response: 100Hz - 5000Hz
• Mounting depth: 65mm
• Recommended filtering: >100Hz