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Swieler XLR Microphone Cable 20m Balanced OFC

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Brand: Swieler
Ships Fast from Australia: In stock
SKU: TW-XLR20
Swieler XLR microphone cable 20m balanced OFC audio cable with XLR connectors for professional sound equipment.
FJ$71.00 FJD
FJ$71.00 FJD
Swieler XLR Series

Twenty metres.
The long throw.
Still silent.

Outdoor stages across a lawn, back-of-house runs that leave the room and follow a corridor, large halls where one continuous cable beats two and a coupler. Balanced XLR and spiral shielding keep a run this long quiet.

20 mLength
XLR3-pin M→F, balanced
OFCOxygen-free copper
SpiralFull shielding

Best for: Outdoor events · back-of-house · large halls

Swieler XLR Microphone Cable 20m Balanced OFC
20 mTW-XLR20
Balanced XLR3-pin male to female
OFC conductorsOxygen-free copper
Spiral shieldFull coverage
Metal housingsBoth connectors
Flexible PVCCoils flat, stays pliable
Stocked in AUShips from MSM AV
Length planner

Which length do you actually need?

Pick where the microphone and the input live. We’ll draw the run, add a metre of dressing slack, and show which Swieler length fits without a coil on the floor.

You need at least
3.6m of cable

Run distance plus ~1 m to dress the cable down a stand, around hardware and into a service loop at the connector.

Tap to explore

What’s inside a Swieler lead.

Every layer does a job. Tap a hotspot to see what it is and why it matters for a microphone signal measured in millivolts.

Cutaway · jacket → shield → pair → copper Connectors · 3-pin XLR, male to female

Swipe the drawing sideways to see every layer.

Why XLR stays quiet

Two wires. One signal. Noise cancels itself.

Any cable behaves like an aerial. A balanced line carries the same audio on two conductors with opposite polarity; interference lands on both equally, and the mixer input only responds to the difference — so the hum is subtracted and the voice survives.

  • Pin 2 carries the signal, pin 3 carries its mirror image. Pin 1 is the shield drain to ground.
  • The input subtracts pin 3 from pin 2. Noise that hit both wires the same way disappears. This is common-mode rejection.
  • Spiral shielding does the other half, draining higher-frequency hash to earth before it reaches the pair.
Hum at mixer
Noise in output: 0%

Illustration only. Switch Balanced off to see what the same run would deliver on an unbalanced (TS / RCA) lead.

Connectors

Metal housings. Latched, not hoped.

A 3-pin XLR female on the microphone end locks onto the mic; the male end seats into the mixer, interface, stage box or wall plate. The latch means it stays put until you press the release.

  • Passes 48 V phantom power from a mixer or interface to condenser microphones — the standard XLR mic connection.
  • Also carries balanced line level between mixers, processors and powered speakers with XLR inputs.
  • Daisy-chain when you must. Male-to-female means two Swieler leads join end to end for an unplanned extra reach.
Make it last

Coil it right. It pays out flat.

The flexible PVC jacket is chosen so the cable lies down instead of springing back into its last coil. An over-under coil keeps it that way.

STEP 01

First loop over

Hold the female end. Make a natural loop, letting the cable twist the way it wants to.

STEP 02

Second loop under

For the next loop, turn your wrist the other way so the cable crosses under. Alternate over, under, over.

STEP 03

Tie and store

Hook-and-loop tie at the connectors. The coil unrolls in a straight line with no twists — every time.

Service loop at the connectorA tug on the cable should not be a tug on the pins. Leave a small loop at each end.
Cross power at right anglesRun parallel to mains for as little distance as possible; cross it square.
Edges, not diagonalsRoute along walls or under a mat rather than straight across a floor people walk on.
Technical specifications

The details.

Cable
ModelTW-XLR20
TypeBalanced microphone cable
Length20 m
ConductorOxygen-free copper (OFC)
ShieldingFull spiral shield
JacketFlexible PVC, black
Connectors
Microphone end3-pin XLR female, metal housing, latching
Input end3-pin XLR male, metal housing
Pin-out1 ground / shield · 2 hot (+) · 3 cold (−)
Phantom powerPasses 48 V phantom
Range1, 2, 3, 5, 10, 15 and 20 m
BrandSwieler · stocked by MSM AV, Australia
Built for

Wherever a microphone meets an input.

Podcast & streaming
Home & project studios
Live stage
Churches & worship
Schools & halls
Corporate AV
Rack & install wiring
Drum close-miking
Front of house
Outdoor events
FAQ

Good questions.

Is this a balanced or unbalanced cable?

Balanced. It carries the signal on two conductors of opposite polarity under a spiral shield, terminated in 3-pin XLR male and female connectors, which is the standard for microphones and balanced line-level audio.

What’s the difference between the Swieler lengths?

Only the length. Every lead in the range uses the same OFC conductors, spiral shield, metal housings and PVC jacket — choose from 1, 2, 3, 5, 10, 15 or 20 m to match the run. The planner above shows which one fits.

Will it carry phantom power to a condenser mic?

Yes. A standard 3-pin XLR cable passes 48 V phantom power from the mixer or interface to the microphone.

Can I join two cables for a longer run?

Yes — male-to-female connectors chain end to end. For a permanent or regular run it is better to buy one continuous length so there is no joint to fail or trip on.

Can I use it to connect an amplifier to a passive speaker?

No. XLR microphone cable is for mic and line-level signals. Amplifier-to-passive-speaker runs need speaker cable rated for the power.

Does a long run pick up hum?

Far less than an unbalanced lead would. The balanced pair cancels interference that lands on both conductors, and the spiral shield drains the rest. Keep parallel runs beside mains cable short and cross power leads at right angles.

The Swieler XLR range

Seven lengths. One build.

Stocked in AustraliaFast local dispatch

12-month warrantyBacked by MSM AV

Local supportMill Park, VIC · 03 9436 9000

Secure paymentAll major cards & wallets

Swieler XLR Microphone Cable 20m

Twenty metres is a long throw. Outdoor events where the stage and the mix position are separated by a crowd barrier and a lawn. Back-of-house runs that leave a room, follow a corridor and terminate in a plant room or a comms rack. Large halls where a single continuous cable is preferable to two shorter ones and a coupler. This is the top of the Swieler XLR range, and it exists for the jobs where reach is the requirement.

Why balanced XLR earns its reputation here

Any cable behaves like an aerial. The longer the run, the more electromagnetic noise it picks up along the way — mains hum from a nearby power lead, buzz from dimmers or LED drivers, hash from motors and switching supplies. A balanced XLR line carries the same audio signal on two conductors with opposite polarity. Interference arriving from outside lands on both conductors more or less equally, and the balanced input at the far end responds only to the difference between them. The interference, being common to both, is subtracted; the audio, being a difference, survives. That subtraction is called common-mode rejection, and it is the reason a twenty-metre balanced microphone run can sit quietly beside a power cable while an unbalanced line of the same length would arrive humming.

Spiral shielding contributes the other half of the defence, draining higher-frequency interference to earth before it reaches the conductors at all. Neither mechanism is exotic — both are simply why the industry standardised on this connector for microphone level signals, where the source is measured in millivolts and there is no headroom to lose to noise.

Practical notes for a run this long: route it along an edge rather than through traffic, cross power cables at right angles instead of running parallel to them, and give it a proper over-under coil so the next deployment pays out without twists.

Key features

  • Balanced 3-pin XLR, male to female
  • Oxygen-free copper (OFC) conductors
  • Full spiral shielding
  • Metal connector housings
  • Flexible PVC jacket, black
  • 20 metres — long throws, outdoor stages and back-of-house runs

Technical specifications

Model No TW-XLR20
Type Balanced microphone cable
Connectors 3-pin XLR male to 3-pin XLR female
Length 20 m
Conductor Oxygen-free copper (OFC)
Shielding Spiral shield
Jacket Flexible PVC
Colour Black

The longest XLR lead MSM AV stocks in Australia.

Frequently Asked Questions

What's the difference between this and the other Swieler XLR cable lengths?

Same balanced OFC (oxygen-free copper) construction and connectors — just choose the length that matches your run, from 1m up to 20m. This is the 20m length.

Is this a balanced or unbalanced cable?

Balanced, with male-to-female XLR connectors, suitable for microphones and balanced line-level audio equipment.