# Car Speaker BLOW A-300 4 Ω — 4 Ohm impedance, model 30-539#

**URL:** https://aio.lv/en/product--blow-30-539--12036668
**Data updated:** 2026-03-12 16:45 (EET)
**Category:** Car Speakers
**Manufacturer:** BLOW
**Manufacturer code:** 30-539#
**EAN:** 5900804056034
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 52.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 43.38 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--blow-30-539--12036668

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

BLOW A-300 is a car speaker with a 4 Ω impedance (model 30-539#) designed for in-vehicle audio systems. Suitable for replacing or upgrading factory speakers, it provides compatibility with standard car amplifiers and head units that match a 4-ohm load. Use it in door or rear deck installations for improved midrange and full-range sound reproduction in everyday driving.

## Long description

BLOW A-300 is a car speaker with 4 Ω impedance designed for in-vehicle audio systems. The driver delivers midrange and full-range sound suitable for everyday driving environments and replaces or upgrades standard factory speakers. Compatible with common car head units and amplifiers that support a 4-ohm load, this speaker is intended for installation in door panels or rear decks to improve overall clarity and presence without requiring major system changes.
Advantages
The speaker offers a standardized 4 Ω impedance that ensures straightforward compatibility with most car audio amplifiers and factory head units. Its compact design allows for direct replacement in many factory locations and supports improved midrange clarity and balanced full-range reproduction. The construction focuses on reliable performance in typical vehicle conditions and straightforward installation for common mounting positions.
Suitable for
Replacing worn or damaged factory door speakers
Upgrading sound in the rear deck of a sedan or hatchback
Integrating into a basic aftermarket audio upgrade without changing the amplifier
Owners seeking clearer midrange and more defined full-range sound for daily driving
Key specifications
Impedance: 4 ohm
Application: car audio (door or rear deck installation)
Frequency focus: midrange and full-range reproduction
Compatibility: designed to work with standard car head units and amplifiers supporting 4 Ω loads
Form factor: speaker driver suitable for common automotive mounting locations
How to use
Before installation, disconnect the vehicle battery to prevent short circuits. Remove the door panel or rear deck trim according to the vehicle’s service instructions, unplug the existing speaker wiring and remove the old speaker. Mount the BLOW A-300 into the existing speaker opening using appropriate screws or adapters if required, ensure correct polarity when connecting the positive and negative terminals, and secure the speaker and trim panels. Reconnect the battery and test the speaker at low volume first, then gradually increase to confirm proper operation and polarity.
Usage recommendations
For best results use the BLOW A-300 with head units or amplifiers rated for 4 Ω output. Avoid clipping by keeping amplifier gain at moderate levels and adjust equalization to target midrange clarity. When installing in custom enclosures or locations differing from factory mounting points, ensure proper sealing and damping to reduce vibrations and improve acoustic performance.

## FAQ

### How much does the Car Speaker BLOW A-300 4 Ω cost, and is it available for purchase?

The price is 52.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 89 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 16.07.2026 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, Bank cards on-line, Apple Pay, Google Pay. 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 BLOW 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 BLOW 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/12036668/67523981_large.webp