DELTACO audio cable MM-139-K 3.5mm male to 2×RCA male, 1 m, black

DELTACO MM-139-K is a 1 m audio cable with a 3.5 mm stereo male plug on one end and two RCA male plugs on the other. It is intended for connecting devices with a 3.5 mm headphone output — such as portable players, laptops or smartphones — to amplifiers, AV receivers, speakers or other equipment with RCA inputs. The cable has gold-plated contacts and comes in FSC-labeled packaging with a five-year limited warranty.

Advantages

The cable provides a simple and reliable stereo connection between devices with a mini-phone 3.5 mm output and equipment with RCA inputs. Gold-plated connectors reduce corrosion and maintain consistent signal transfer over time. Colour-coded RCA contacts make left/right channel identification straightforward for quick and correct setup. The 1 m length offers compact routing for desktop or home audio setups.

Suitable for

• Connecting a computer, laptop or smartphone to an amplifier or powered speakers
• Connecting portable audio players to AV receivers or stereo systems
• Basic home recording or playback setups requiring a 3.5 mm to RCA connection

Key specifications

• Cable type: Audio cable
• Connector A: Mini-phone stereo 3.5 mm — male
• Connector B: 2 × RCA — male
• Length: 1 m
• Plated contact: Gold
• Color: Black
• Special features: Color-coded contacts, FSC-labeled packaging
• Warranty: Limited warranty — 5 years

How to use

Insert the 3.5 mm stereo plug into the headphone or line output of your source device. Connect the two RCA male plugs to the corresponding left (white) and right (red) RCA inputs on the amplifier, receiver or speaker. Ensure correct channel matching using the colour-coded contacts and set the source device and amplifier volumes to a low level before increasing to the desired listening level.

Usage recommendations

For best results, keep cable runs as short as practical to minimise interference. Avoid tightly coiling the cable or placing it near power cords. If connecting to equipment with unbalanced inputs, verify input sensitivity levels to prevent clipping or excessive noise.