LWMR Wiki

Cables and Connectivity Guide

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Cables and Connectivity Guide

Overview

Abstract

Cables and connectivity are the circulatory system of any studio. This guide covers analog cable types and recommendations, digital audio networking protocols (Dante, MADI, AES/EBU), patchbay wiring, and the community’s strong opinions on what works and what causes nightmares in real-world studio environments.

Community Consensus

  • Cables matter, but not in the audiophile sense — Use quality, reliable cables; do not spend hundreds on “boutique” audio cables
  • Mogami and Canare are the community-standard bulk cable brands
  • Neutrik connectors are the go-to for XLR and TRS
  • Dante is powerful but problematic in many real-world deployments
  • MADI is more reliable than Dante for mission-critical applications
  • Make your own cables — It is cheaper, you get exact lengths, and it is an essential studio skill
  • Cable length affects guitar tone — This is actual physics, not audiophile nonsense

Analog Cable Types

XLR (Balanced)

  • Standard for microphone connections and balanced line-level signals
  • Always use balanced connections where possible to reject interference
  • Quality cables: Mogami or Canare cable with Neutrik connectors

TRS (Balanced)

  • 1/4” tip-ring-sleeve for balanced line-level connections
  • Common for patchbays, insert points, and monitor connections
  • Same cable quality recommendations as XLR

TS (Unbalanced)

  • 1/4” tip-sleeve for instrument-level connections
  • Guitar/bass cables, pedal patch cables
  • Keep runs as short as possible to minimize noise pickup

Cable Length and Guitar Tone

Cable capacitance affects the resonant peak of guitar pickups. This is not subtle:

  • Longer cables = more capacitance = rolled-off highs and shifted resonant peak
  • This is why some guitarists prefer specific cable lengths for tone
  • A buffer pedal at the start of the chain mitigates cable capacitance effects

BatMeckley

“Pete Thorn did this really interesting video showing how cable length actually changed the resonant peak of a pickup based on impedance. It wasn’t simply just ‘longer means high end gets weaker because of loss.‘”

Digital Audio Networking

Dante

Dante (Digital Audio Network Through Ethernet) is widely used but has a complicated reputation:

Pros:

  • Runs over standard Ethernet infrastructure
  • Flexible routing through Dante Controller software
  • Widely supported by many manufacturers

Cons (from community experience):

  • Occasional clocking/jitter errors that are difficult to diagnose
  • Audinate software updates have bricked hardware (specifically RME Dante boxes)
  • Requires networking knowledge that many audio engineers lack
  • Troubleshooting during live events is not feasible

SoundsLikeJoe

“Moving away from Dante after a couple years of field deployment. Found too many negatives for our situation to continue… Recently Audinate pushing a Dante Controller update that bricked the chip in the RME Dante box.”

georget113

“Dante based studios are a nightmare.”

chrissorem

“I used Dante on the regular, there is somewhat complex system, there is about 18 devices online. It’s been nothing but a nightmare for me.”

Felix Byrne

“Let’s make an audio tool built by network IT admin, what could go wrong.”

MADI (Multichannel Audio Digital Interface)

The community is shifting toward MADI for critical applications:

  • More reliable than Dante for mission-critical work
  • Point-to-point connections (no network configuration)
  • Up to 64 channels on a single cable (coax or fiber)
  • Preferred for backup recording and live broadcast

AES/EBU

  • Professional digital audio standard, 2 channels per connection
  • Rock-solid reliability
  • Common for connecting standalone converters to interfaces

USB and Thunderbolt

  • Standard for interface-to-computer connections
  • Thunderbolt offers lower latency than USB in most implementations
  • USB-C/Thunderbolt 3+ has largely unified the connector landscape

Patchbays

Why Use a Patchbay

  • Centralizes all studio connections in one accessible location
  • Allows re-routing without crawling behind racks
  • Normalled connections maintain default routing while allowing overrides
  • Extends the life of gear jacks by reducing plug/unplug cycles

Patchbay Types

TypeBehaviorBest For
Full NormalTop and bottom connected by default; inserting a cable breaks the connectionSignal chains that should always be connected (preamp → interface)
Half NormalTop and bottom connected by default; inserting into top splits signal, inserting into bottom breaks connectionFlexible routing with monitoring capability
Open (Thru)No default connectionAux sends, effects returns, ad-hoc routing

Wiring Recommendations

  • Label everything obsessively — “Future you will thank present you”
  • Use consistent cable colors for different signal types
  • Keep analog and digital runs separated where possible
  • TT (tiny telephone) patchbays are the professional standard but 1/4” TRS bays are more practical for smaller studios
CategoryBudgetProfessional
Bulk cableCanare Star QuadMogami Neglex
XLR connectorsAmphenolNeutrik
TRS connectorsGenericNeutrik
Guitar cablesPre-made MogamiCustom Mogami/Canare
Patch cablesHosa (functional)Mogami, custom-built

Studio Wiring Best Practices

Power and Signal Separation

  • Keep audio cables away from power cables — cross at 90 degrees if they must intersect
  • Use balanced connections for any run over 10 feet
  • Star grounding where possible to avoid ground loops

Cable Management

  • Velcro ties, not zip ties (zip ties crush cables over time)
  • Leave service loops for future re-routing
  • Label both ends of every cable
  • Document your wiring with photos and diagrams

Grounding and Noise

  • Ground loops are the #1 cause of studio hum/buzz
  • Balanced connections reject common-mode noise
  • Ground lift switches on DI boxes exist for a reason — use them when needed
  • See Power Conditioning for more on clean power

Impedance and Cable Physics (from nerd-talk)

The nerd-talk channel added deeper engineering context to the practical cable recommendations above, explaining why balanced connections reject noise and how cable properties affect signal integrity.

Why Balanced Connections Reject Noise

Balanced audio uses two signal conductors carrying the same signal in opposite polarity, plus a ground/shield:

  • Common-mode rejection — Any interference (hum, RF, etc.) picked up along the cable appears equally on both conductors. The differential receiver at the input subtracts one from the other, canceling the noise while doubling the desired signal
  • The shield is not carrying signal — It provides electrostatic shielding only. This is why lifting the shield at one end can break ground loops without affecting audio quality
  • Rejection ratio depends on the receiver — A transformer-balanced input provides excellent CMRR (common-mode rejection ratio) inherently. An electronically balanced input depends on resistor matching in the differential amplifier — cheaper gear with looser tolerances has worse CMRR

Cable Capacitance Physics

All cables have capacitance between their conductors, measured in picofarads per foot (pF/ft):

  • Capacitance forms a low-pass filter with the source impedance — Higher source impedance and higher cable capacitance mean more high-frequency loss
  • Low-impedance sources (line level, mic level) are virtually unaffected by cable capacitance even on long runs — This is why you can run 100+ feet of balanced mic cable without audible degradation
  • High-impedance sources (guitar pickups, ~5-15 kΩ) are significantly affected — A 20-foot guitar cable with 30 pF/ft creates a low-pass filter that audibly rolls off highs and shifts the pickup’s resonant peak
  • Cable capacitance is why “cable tone” exists for guitarists — It is not audiophile nonsense; it is measurable and directly related to the cable’s capacitance interacting with the pickup’s impedance. See Impedance and Audio Electronics for the full theory

Characteristic Impedance and Digital Cables

  • Digital audio cables (AES/EBU, S/PDIF, word clock) have a specified characteristic impedance — 110Ω for AES/EBU, 75Ω for S/PDIF and word clock
  • Using the wrong impedance cable for digital connections can cause reflections, leading to jitter or data errors
  • This is why you should not use random mic cables for AES/EBU connections — they work, but impedance mismatches can degrade the digital signal

Common Debates

Cable Quality — Does It Matter?

  • For analog audio: Quality construction (good solder joints, proper shielding, strain relief) matters enormously for reliability. Exotic conductor materials do not matter audibly
  • For guitar cables: Cable capacitance genuinely affects tone. This is measurable and audible
  • For digital audio: A cable either works or it does not. There is no “better sounding” HDMI or AES cable

Dante vs MADI vs AVB

  • Dante: Most flexible, worst reliability track record in the community
  • MADI: Most reliable, less flexible routing
  • AVB: Gaining traction but less widely supported
  • For fixed installations with IT support: Dante can work well
  • For live/location work: MADI is strongly preferred

Tips from the Community

  • Make your own cables. Bulk Mogami + Neutrik connectors + basic soldering skills = huge savings and exact lengths
  • Test every cable before installing it in your permanent rig
  • Keep spare cables of every type you use in the studio
  • When debugging noise issues, swap cables first before assuming gear is broken
  • For Dante: keep your audio network on a completely separate switch from your internet/IT network
  • Invest in a cable tester — saves hours of troubleshooting

Common Mistakes

  • Using unbalanced cables for long runs — Guaranteed noise pickup
  • Zip-tying cable bundles too tightly — Damages cable over time
  • Running audio and power cables in parallel — Creates interference
  • Trusting Dante for mission-critical live applications without redundancy
  • Not labeling cables — Creates chaos during troubleshooting
  • Ignoring cable capacitance in guitar signal chains
  • Using cheap patch cables in the patchbay — The patchbay is only as good as its weakest cable

See Also

Source Discussions

Discord Source

Channel: gear-talk Matches: 700 Key contributors: Rollmottle, Bryan DiMaio, BatMeckley, David Fuller, cian riordan, Eric Martin, Nomograph Mastering, hyanrarvey, SoundsLikeJoe, Will Melones, Gerhard Westphalen, jantrit, Adam Thein, LAPhill, Ross Fortune

Discord Source

Channel: 🧠nerd-talk Messages: ~92 (impedance theory, balanced connection physics, cable capacitance) Key contributors: David Fuller, Nomograph Mastering, Bryan DiMaio, Gerhard Westphalen, tinkerjef Date range: January 2024 – February 2026 See also: nerd-talk Channel Summary

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