6.3mm Mono Plug to Gold RCA Connector – Coaxial AV Audio/Video Solder Adapter

Solder-type adapters combining a 6.3mm (1/4-inch) mono TS plug with a gold-plated RCA (phono) connector — for building custom cables that connect 1/4-inch TS equipment to RCA inputs/outputs, or for repairing existing cables. The 6.3mm mono TS plug is the standard for unbalanced instrument and speaker connections; the RCA connector is the standard for consumer line-level audio and video. These adapters allow direct cable fabrication between the two standards without a separate adapter dongle.

Key Specifications

• Connector 1: 6.3mm (1/4-inch) mono TS plug (tip = signal, sleeve = ground)
• Connector 2: Gold-plated RCA (phono) plug (center pin = signal, outer shell = ground)
• Type: Solder termination (both ends)
• Contact Material: Brass, gold-plated (RCA end)
• Body Material: Zinc alloy or brass
• Cable Compatibility: Standard coaxial audio cable (RG174, RG58, or equivalent)
• Quantity: 4, 10, or 20 pieces (select above)

6.3mm TS vs TRS — Mono vs Stereo

• TS (Tip-Sleeve, mono, this product): Two conductors — tip = signal, sleeve = ground. For unbalanced mono connections: electric guitar to amplifier, keyboard to mixer, instrument-level signals. Also used for speaker connections on low-power amplifiers (not recommended for high-power speaker connections — use Speakon instead).
• TRS (Tip-Ring-Sleeve, stereo or balanced): Three conductors. For stereo headphone connections (tip = left, ring = right, sleeve = ground) or balanced mono connections (tip = hot, ring = cold, sleeve = ground). Not interchangeable with TS for balanced applications — a TS plug in a TRS balanced socket shorts the cold signal to ground, converting the balanced connection to unbalanced.

Frequently Asked Questions

How do I wire a 6.3mm TS plug to an RCA connector?

Both connectors carry the same two conductors: signal (hot) and ground. Wire as follows: 6.3mm TS tip → RCA center pin (signal); 6.3mm TS sleeve → RCA outer shell (ground). Use coaxial cable — the center conductor connects to both signal terminals; the shield/braid connects to both ground terminals. Keep the cable as short as practical for unbalanced connections — unbalanced cables are susceptible to interference on runs over 3–5 meters.

Can I use this adapter for connecting a guitar amplifier to a mixer?

Yes, for the amplifier’s line-level output (effects send, DI output, or headphone output) to a mixer’s RCA or line input. Do not connect the amplifier’s speaker output to a mixer input — speaker-level signals (typically 10–100V) will damage mixer inputs designed for line-level signals (typically 1–2V). Use the amplifier’s line-level output only.

What cable should I use with these solder-type connectors?

Use standard coaxial audio cable: RG174 (thin, flexible, for short runs), RG58 (thicker, lower loss, for longer runs), or dedicated audio coaxial cable (Mogami, Canare, Belden). The cable OD must fit within the connector’s strain relief — verify the cable OD against the connector’s cable entry diameter before ordering. Most 6.3mm TS plugs accept cable OD of 4–7mm.

Is gold plating on RCA connectors worth it?

Gold plating prevents oxidation that increases contact resistance over time. In standard line-level audio applications, the audible difference between gold-plated and tin-plated connectors is negligible in new condition. The advantage of gold plating is long-term reliability — gold-plated contacts maintain low resistance for years without oxidation, while tin-plated contacts develop an oxide layer that increases resistance and can cause intermittent connections.

Typical Applications

• Studio wiring: Connecting 1/4-inch TS equipment to RCA-equipped mixers, interfaces, and recorders
• Home theater: Custom cables between amplifiers and source components
• DJ equipment: Connecting turntables (RCA output) to mixers with 1/4-inch inputs
• DIY audio: Custom cable fabrication for audio equipment with mixed connector standards
• AV installation: Composite video and audio cable fabrication for AV systems

Package Contents

4, 10, or 20 pieces (select above) — 6.3mm mono TS plug + gold RCA connector solder-type adapters.