AudioQuest Pearl 3.5mm Mini to Full Size Fiber Optic Digital Cable - 3.0 Meter

AudioQuest Pearl 3.5mm Mini to Full Size Fiber Optic Digital Cable — 3.0 Meter

What It Does in Your System

Connects Gear With a Mini Optical Jack to Gear With a Standard One

Optical digital audio comes in two connector sizes. Full-size Toslink is the square port on most TVs, soundbars, and receivers. Mini optical is the smaller round jack found on some computers, portable players, and compact components — it looks like a headphone socket, and on some devices it is one, doing double duty.

This cable bridges the two. Mini at one end, full-size at the other, in a single run. At 3 meters — just under 10 feet — it reaches from a desk to a rack, or across a room to a soundbar.

Light Instead of Electricity

An optical cable sends your audio as pulses of light down a plastic fiber. There is no metal path from one component to the other, which means no electrical connection at all.

That has one very practical benefit. Ground loops — the hum you sometimes get when two components share a mains connection — simply cannot travel down a beam of light. If you have chased a hum between a TV and an amplifier, optical often ends it outright.

Low-Dispersion Fiber and a Polished Interface

Not all the light travels straight down the fiber. Some of it scatters, bounces off the sides, and takes a longer route — arriving a fraction late. AudioQuest calls this dispersion, and the more of it there is, the harder the receiving component has to work to read the signal cleanly.

Pearl uses a low-dispersion fiber to keep more of the light on the direct path, and the ends are finely polished so the light enters and leaves cleanly. Both are aimed at the same thing: lower jitter, meaning better timing accuracy at the receiving end.

Is This Right for You?

Three things to check before ordering:

• Confirm you need mini at one end. This cable is mini optical to full-size Toslink. If both your components have full-size square ports, you want the standard Pearl Optical cable instead. Look at the ports before ordering.
• Make sure the mini jack is actually optical. On many devices, the small round port is a plain headphone jack with no optical capability. A combined jack usually glows red when the device is on. If there is no red light, that port will not work with this cable.
• Know what optical will and will not carry. It handles stereo and standard surround formats like Dolby Digital and DTS. It does not have the bandwidth for Dolby TrueHD, DTS-HD Master Audio, or Dolby Atmos — those need HDMI. For two-channel listening and everyday TV sound, optical is entirely sufficient.

Setup & Installation

Plug the mini end into the optical output on your source and the full-size end into the optical input on your amplifier, soundbar, or DAC. Some full-size ports have a small hinged flap — the plug pushes it open. Both ends have protective caps that pull off before use.

Route the cable in gentle curves. Optical fiber is glass or polymer and does not tolerate sharp bends — a kink can crack the fiber and kill the signal permanently, with no visible damage to the jacket. Then set your source to output over optical, since many devices default to a different connection.

Features & Specifications

Low-Dispersion Fiber Conductor
Keeps more light on the direct path so the receiving component reads the signal more cleanly.

Finely Polished Optical Interface
Polished ends let light enter and exit the fiber with less scatter.

Mini to Full-Size Termination
3.5mm mini optical at one end and standard Toslink at the other, with no adapter required.

CL3/FT4 Rated Jacket
PVC jacket carrying an in-wall fire safety rating, in black with gray stripes.

Specifications

• Type: Optical digital audio cable, Toslink
• Signal: Digital
• Connectors: 3.5mm mini optical to full-size Toslink
• Conductor: Low-dispersion fiber
• Optical interface: Finely polished
• Length: 3.0 meters (approximately 9 ft 10 in)
• Jacket: PVC, black with gray stripes
• Rating: CL3/FT4

Frequently Asked Questions

Can an optical cable really sound different?
The data is the same either way. What varies is how cleanly the light arrives and how much work the receiver does to recover the timing. Better fiber and better polishing reduce that workload. Whether you hear the difference depends on your components — a well-designed receiver may be largely immune.

Will this fix my hum problem?
Often, yes. Because there is no metal path between components, ground loops cannot cross an optical connection. If your hum appears when you connect two devices with an analog or coaxial cable, switching to optical is worth trying.

Is 3 meters too long for optical?
No. Toslink runs comfortably at this length and well beyond. What matters more than distance is avoiding sharp bends, since those damage the fiber itself.

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