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Monoprice Inc.

Monoprice Inc. 129516 Monolith 2.5mm to 3.5mm Cable

SKU CH-1E6N-63B9D

Connects 2.5 mm headphones to 3.5 mm audio sources with Monolith construction

  • ProcessorAudio / Video Cables
  • Key features2.5 mm to 3.5 mm.
  • Connects 2.5 mm sources to 3.5 mm headphones
  • Monolith build quality for durable daily use
  • Stereo wiring preserves left and right channels
  • Model 129516 ensures exact replacement compatibility
  • Ready to use straight from the box

Monolith 2.5 mm to 3.5 mm Cable

The Monoprice Monolith cable connects devices with a 2.5 mm stereo jack to equipment that uses a 3.5 mm stereo input. It is intended for listeners who own headphones or portable players terminated with the smaller plug and want a direct wired link to standard audio sources.

Capacity and headroom

The cable carries analogue stereo signals between the two connector sizes without active electronics. It handles typical headphone-level voltages and impedances found in consumer audio gear, but it is not designed for line-level interconnects or balanced connections that require additional conductors.

Upgrade path

This cable replaces a missing or damaged 2.5 mm to 3.5 mm adapter or fixed lead, letting you keep using existing headphones with newer sources. The jump is worthwhile when the original cable has failed or when a permanent, strain-relieved connection is preferred over a bulky plug-on adapter.

How it compares

Measured against everything we stock in 3.5mm Aux Audio Cables, at today’s prices. Recalculated every night.

Price $25.99
Pricier than about 80% of the 309 comparable items (median $9.99).

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Specifications

Product
Brand nameMonoprice
Model name129516
Part number129516
Processor
ProcessorAudio / Video Cables

Questions about this item

Will the Monoprice 129516 cable connect my 2.5 mm balanced headphone output to a 3.5 mm single-ended input?

Yes, the Monolith cable has a 2.5 mm plug on one end and a 3.5 mm plug on the other for that connection.

How can I verify the Monolith 129516 cable is functioning correctly after plugging it in?

Play audio through the source; sound should come through both left and right channels without static or dropouts.

What accessories are included with the Monoprice 129516 cable and what must I buy separately?

Only the 2.5 mm to 3.5 mm stereo cable is supplied; any additional adapters or extension cables are sold separately.

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