# 4-channel car audio amplifier PSSO QDA-4400 — 4400W RMS total power

**URL:** https://aio.lv/en/product--psso-10451695--8420722
**Data updated:** 2026-02-17 10:59 (EET)
**Category:** AV Receivers & Amplifiers
**Manufacturer:** PSSO
**Manufacturer code:** 10451695
**EAN:** 4026397614435
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 802.99 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 663.63 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--psso-10451695--8420722

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

PSSO QDA-4400 is a 4-channel car audio amplifier delivering a total of 4400W RMS. Designed to power a variety of speaker setups, it provides four outputs for front and rear channels or bridged subwoofer configurations. Suitable for upgrading in-car sound systems, it improves headroom and dynamic range and supports typical wiring for automotive audio installations.

## Long description

PSSO QDA-4400 is a 4-channel car audio amplifier offering a combined 4400W RMS total output. Engineered to supply power to front and rear speakers or to be bridged for subwoofer use, it is intended for automotive audio upgrades where increased headroom and dynamic range are required. The amplifier supports typical car audio wiring and provides four discrete outputs to accommodate a variety of speaker configurations.
Advantages
The amplifier delivers high continuous power across four channels, enabling consistent playback levels and improved dynamics compared with many factory units. Its flexible channel arrangement allows use in full four-channel systems or bridged modes for subwoofer integration. The unit’s design focuses on stable power delivery suitable for common automotive speaker impedances and standard car installation practices, reducing the need for complex reconfiguration when upgrading a vehicle sound system.
Suitable for
 Upgrading factory car audio systems to higher continuous power
 Driving separate front and rear speaker pairs in a four-channel setup
 Bridging two channels to power a subwoofer or mono low-frequency driver
 Installations requiring reliable RMS power for improved headroom and dynamic response
Key specifications
 Configuration: 4-channel amplifier with bridging capability
 Total continuous output: 4400W RMS combined across channels
 Application: automotive use for driving speakers and subwoofers
 Compatibility: typical car speaker impedances and standard wiring schemes
 Outputs: four discrete speaker outputs for front/rear or bridged pairs
How to use
Install the amplifier following standard automotive safety and wiring practices: disconnect the vehicle battery before beginning, secure the amplifier to a stable surface with appropriate ventilation, and use suitably rated power and ground cables. Connect the head unit or processor outputs to the amplifier’s inputs, and wire speakers to the four outputs according to the desired configuration (individual front and rear channels or bridged pairs for subwoofer use). After wiring, reconnect the battery and set gain and crossover controls at the amplifier to match the speaker specifications and head unit output level, then fine-tune during listening tests to avoid distortion.
Usage recommendations
Use properly sized power and ground wiring and install an inline fuse near the battery to protect the vehicle electrical system. Match speaker impedance to the amplifier’s supported loads and avoid driving the amplifier into clipping; ensure gains are adjusted conservatively to maintain signal integrity and prolong component life.

## FAQ

### How much does the PSSO QDA-4400 4-channel amplifier cost, and is it available for purchase?

The price is 802.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 27 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 09.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All PSSO products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized PSSO service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/8420722/59846276_large.webp