# Audio adapter SpeaKa Professional KCA-635 — 6.35 mm (1/4") jack to RCA stereo cable adapter

**URL:** https://aio.lv/en/product--speaka-professional-sp-6672048--1088448
**Data updated:** 2026-01-13 15:35 (EET)
**Category:** Audio & Video Cables
**Manufacturer:** SpeaKa Professional
**Manufacturer code:** SP-6672048
**EAN:** 4053199534357
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 17.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 14.87 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--speaka-professional-sp-6672048--1088448

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

SpeaKa Professional KCA-635 is an audio adapter that converts a 6.35 mm (1/4") jack connection to dual RCA connectors. It provides a simple wired link between instruments, mixers or headphone outputs with 6.35 mm jacks and audio devices or amplifiers with RCA inputs. Useful for studio, live, DJ and home audio setups where reliable stereo analog connection is needed.

## Long description

SpeaKa Professional KCA-635 is an analog audio adapter cable that converts a single 6.35 mm (1/4") stereo jack into two RCA connectors. It provides a direct wired connection between instruments, headphone outputs or mixer/stage equipment with a 6.35 mm stereo output and recording units, amplifiers or consumer audio devices with RCA inputs. The cable is intended for stereo signal transfer and helps integrate professional and consumer audio gear without additional converters.
Advantages
The adapter offers a compact and passive design that requires no power and introduces minimal signal loss when used for line-level or headphone outputs. Its construction ensures stable contact between the 6.35 mm jack and the RCA plugs, reducing the risk of intermittent connections during studio sessions or live performances. The straightforward cable layout simplifies setup and cable management where a short, reliable stereo link is needed.
Suitable for
Connecting keyboards, mixers or audio interfaces with 6.35 mm stereo outputs to amplifiers or recorders with RCA inputs
Linking headphone outputs or stereo line outputs to consumer AV equipment
Temporary studio patching, DJ setups and live sound checks
Key specifications
Connector A: 6.35 mm (1/4") stereo (TRS) plug
Connector B: 2 × RCA male plugs (left and right)
Cable type: shielded stereo audio cable
Signal type: analog stereo (line-level / headphone-level compatibility)
Design: passive, no active electronics or power required
How to use
Insert the 6.35 mm stereo plug into the source device’s headphone or line output until it seats firmly. Connect the two RCA plugs to the corresponding left and right inputs on the destination device, matching colors or labels where present. Set source and destination levels appropriately to avoid clipping: start with the source volume low and increase gradually while monitoring the output. For best results, route signals at line-level when available; if using a headphone output, adjust levels to prevent distortion.
Usage recommendations
Use this adapter for short, direct connections; avoid running it in long unattended cable runs to minimise potential interference. Keep connectors clean and insert/remove by gripping the plug body to reduce strain on solder joints. If you need ground isolation or impedance conversion, consider using a dedicated DI box or active converter instead of a passive adapter.

## FAQ

### How much does the SpeaKa Professional KCA-635 audio adapter 6.35mm–RCA cost, and is it available for purchase?

The price is 17.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 310 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 27.07.2026 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. 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 SpeaKa Professional 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 SpeaKa Professional 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/1088448/47666863_large.webp