ESX SX800.2 – 800W RMS 2-Channel Class D SIGNUM SX Series Amplifier 1Ω Stable
Pre-order - Lead times and availability
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.
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Free delivery from €49*
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
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
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If you experience any problems, please contact our customer service team promptly.
Advisory Service
Advisory Service
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Description
Description
Highlights
- Highly efficient 2-channel Class D amplifier
- Power: 2 x 400W RMS at 1Ω (2 x 280W RMS at 2Ω, 2 x 180W RMS at 4Ω)
- Bridged mode: 1 x 800W RMS at 2Ω (1 x 560W RMS at 4Ω)
- 1 ohm stable per channel
- Die-cast aluminum heatsink
- Adjustable HPF/LPF filter 50-5000 Hz
- Bass boost 0-12 dB
- Compact remote bass level control included
- High-level inputs with EPS® protection system
- Compact dimensions: 140 x 44 x 225 mm
- Efficiency up to 90%
Description
With the new SIGNUM SX power amplifiers, ESX is opening a new chapter: for the first time in the series, robust and perfectly fitting die-cast aluminum heatsinks are used – a feature never seen before in this price range. The advantages are clear: thanks to robust construction combined with modern Class D technology, the enclosures remain remarkably compact and set new standards in terms of efficiency and performance.
The SX800.2 amplifier pushes the boundaries of performance and stability per channel compared to the versatile 4-channel amplifier: housed in the same compact die-cast aluminum heatsink, it delivers 2 x 180 watts into 4 ohms or a stable 2 x 280 watts RMS into 2 ohms. Its major asset? It is even stable down to 1 ohm. In this mode, it delivers 2 x 400 watts RMS and can effortlessly power the most demanding speaker systems.


