Skip to main content

Splitter

Seismic Audio SA-RMSS-32 Mic Splitter

Thirty-two channels of transformer-isolated splitting in a 5U chassis. The "no compromises" rig pick — every drum mic, every backline DI, every vocal mic has its own direct + iso trunk to FOH and a recording rig, with margin left over. Heavy enough that you only carry it when the rig calls for it.

Compare

Photos

Manufacturer product photography — the drawn faceplate stays true to panel layout; these show the hardware itself.

Photo: Seismic AudioClick to zoom
Documented outputs
6464 destination connections
Documented inputs
32Based on documented inputs
Rack space
5UBuilder checks available rail space
Power draw
0WVerified passive · no AC required
Catalog estimate
~$1,099Use retailer rows for current price and stock

01 · What it does—and what that changes in your rig.

Product overview

Start with the payoff, then work through how it functions, where it fits, and the details that change a real build.

The payoff

Splitter decisions, organized around the whole rig.

The SA-RMSS-32 is the answer to a specific and serious question: how do you feed 32 channels simultaneously to FOH and a second destination — a recording truck, a broadcast feed, a monitor world running its own console — without creating a ground-loop mess or loading down a microphone that a vocalist is counting on? Each of the 32 inputs gets both a direct output and a transformer-isolated output, so you have 64 total output paths leaving this box. That transformer isolation on one leg of every channel is the whole point; it breaks the ground reference between two consoles that may be drawing power from entirely different parts of a venue.

Documented outputs
6464 destination connections
Documented inputs
32Based on documented inputs
Rack space
5UBuilder checks available rail space
INPUTS / SPLITSSEISMICSA-RMSS-32Mic Splitter
Seismic Audio product panel5U · 0W
Function

How it works in the path

Five rack units and 10.4 kilograms tells you this is not a throw-in-the-fly-pack unit. At load-in it will want its own dedicated trunk space and two people lifting it into position. The zero power draw is a real operational benefit — no IEC cable to chase, no power strip slot consumed, no thermal concern in a packed rack. The 220mm depth is manageable in most standard road cases, but measure your rails before you commit. With 96 XLR connectors populated at show time, patching this unit is its own task; build that time into your advance.

Best fit

Where it earns its place in the rack

This box belongs in a festival-advance or touring splitter rack where the channel count genuinely reaches into the thirties and two or more consoles need to work from the same mic lines without argument. If your show is a 16-channel club rig or a corporate event with a single FOH console, you are carrying 10 kilograms of hardware you do not need. For those situations, a 16-channel splitter or a smaller passive split solution is the honest answer. Where the SA-RMSS-32 earns its place is the situation where the alternative is running two separate mic runs to the stage — and nobody wants to do that.

In the rack

Details worth deciding before load-in.

  • Assign the direct outputs to whichever console holds phantom power responsibility — typically FOH — so phantom passes through unimpeded; the isolated outputs go to the secondary destination where phantom is blocked by the transformers.
  • Color-code your snake tails before the gig: one color for the 32 inputs from stage, a second for the 32 direct runs to FOH, a third for the 32 isolated runs to the split destination. With 96 connectors live, unlabeled cable is a real troubleshooting problem mid-show.
  • At 10.4 kg this unit shifts the rack's center of gravity meaningfully — rack it low and towards the back of the case to keep the overall pack balanced when rolling it on casters.
  • Build a channel-by-channel continuity check into your line check routine; with this many connectors, a single misseated XLR is easy to miss visually but will surface fast when you try to ring out a channel at FOH.

02 · Know the whole path before you buy.

Signal path

Learn the route as a block diagram: source, product function, transport, and destination. Select any block to see what enters, what changes, and what leaves.

Interactive block diagramAuto-looping · hover, focus, or tap to hold a stage
Port-type signalProduct functionSystem boundary
Follow one signal from source to destination

Each block answers the same three questions: what arrives, what changes here, and what leaves.

01 · Source · selected
01 · Source

32 documented inputs

XLR female

Arrives as
32 documented inputs
Connector
XLR female
Signal
analog audio

03 · What this product asks of the rest of the system.

Compatibility

Treat connector names as the start of the check—not the answer. These are the boundaries that determine a complete working path.

Best fit · Splitter

Use it when 5U and 220 mm of depth fit the case.

Plan the companion path

Complete the path with upstream and downstream gear that matches connector, direction, signal type, protocol, and wiring standard.

Connector boundary

Documented connectors: XLR female, XLR male. Match connector, direction, and signal type—not shape alone.

04 · Every connector, grouped by job.

I/O ports

Switch the product view and the documented port inventory updates with it—hardware and data stay side by side.

Every connector, grouped by job.

Switch panels to keep the hardware view and the documented port list in sync.

Front panel
INPUTS / SPLITSSEISMICSA-RMSS-32Mic Splitter
Rear panel
Seismic AudioSA-RMSS-32
All documented ports for Seismic Audio SA-RMSS-32 Mic Splitter
PortPanelConnectorDirectionSignalChannels
Input 1 (XLR)frontXLR female inputanalog audio—
Input 2 (XLR)frontXLR female inputanalog audio—
Input 3 (XLR)frontXLR female inputanalog audio—
Input 4 (XLR)frontXLR female inputanalog audio—
Input 5 (XLR)frontXLR female inputanalog audio—
Input 6 (XLR)frontXLR female inputanalog audio—
Input 7 (XLR)frontXLR female inputanalog audio—
Input 8 (XLR)frontXLR female inputanalog audio—
Input 9 (XLR)frontXLR female inputanalog audio—
Input 10 (XLR)frontXLR female inputanalog audio—
Input 11 (XLR)frontXLR female inputanalog audio—
Input 12 (XLR)frontXLR female inputanalog audio—
Input 13 (XLR)frontXLR female inputanalog audio—
Input 14 (XLR)frontXLR female inputanalog audio—
Input 15 (XLR)frontXLR female inputanalog audio—
Input 16 (XLR)frontXLR female inputanalog audio—
Input 17 (XLR)frontXLR female inputanalog audio—
Input 18 (XLR)frontXLR female inputanalog audio—
Input 19 (XLR)frontXLR female inputanalog audio—
Input 20 (XLR)frontXLR female inputanalog audio—
Input 21 (XLR)frontXLR female inputanalog audio—
Input 22 (XLR)frontXLR female inputanalog audio—
Input 23 (XLR)frontXLR female inputanalog audio—
Input 24 (XLR)frontXLR female inputanalog audio—
Input 25 (XLR)frontXLR female inputanalog audio—
Input 26 (XLR)frontXLR female inputanalog audio—
Input 27 (XLR)frontXLR female inputanalog audio—
Input 28 (XLR)frontXLR female inputanalog audio—
Input 29 (XLR)frontXLR female inputanalog audio—
Input 30 (XLR)frontXLR female inputanalog audio—
Input 31 (XLR)frontXLR female inputanalog audio—
Input 32 (XLR)frontXLR female inputanalog audio—
Direct Out 1 (XLR)rearXLR male outputanalog audio—
Direct Out 2 (XLR)rearXLR male outputanalog audio—
Direct Out 3 (XLR)rearXLR male outputanalog audio—
Direct Out 4 (XLR)rearXLR male outputanalog audio—
Direct Out 5 (XLR)rearXLR male outputanalog audio—
Direct Out 6 (XLR)rearXLR male outputanalog audio—
Direct Out 7 (XLR)rearXLR male outputanalog audio—
Direct Out 8 (XLR)rearXLR male outputanalog audio—
Direct Out 9 (XLR)rearXLR male outputanalog audio—
Direct Out 10 (XLR)rearXLR male outputanalog audio—
Direct Out 11 (XLR)rearXLR male outputanalog audio—
Direct Out 12 (XLR)rearXLR male outputanalog audio—
Direct Out 13 (XLR)rearXLR male outputanalog audio—
Direct Out 14 (XLR)rearXLR male outputanalog audio—
Direct Out 15 (XLR)rearXLR male outputanalog audio—
Direct Out 16 (XLR)rearXLR male outputanalog audio—
Direct Out 17 (XLR)rearXLR male outputanalog audio—
Direct Out 18 (XLR)rearXLR male outputanalog audio—
Direct Out 19 (XLR)rearXLR male outputanalog audio—
Direct Out 20 (XLR)rearXLR male outputanalog audio—
Direct Out 21 (XLR)rearXLR male outputanalog audio—
Direct Out 22 (XLR)rearXLR male outputanalog audio—
Direct Out 23 (XLR)rearXLR male outputanalog audio—
Direct Out 24 (XLR)rearXLR male outputanalog audio—
Direct Out 25 (XLR)rearXLR male outputanalog audio—
Direct Out 26 (XLR)rearXLR male outputanalog audio—
Direct Out 27 (XLR)rearXLR male outputanalog audio—
Direct Out 28 (XLR)rearXLR male outputanalog audio—
Direct Out 29 (XLR)rearXLR male outputanalog audio—
Direct Out 30 (XLR)rearXLR male outputanalog audio—
Direct Out 31 (XLR)rearXLR male outputanalog audio—
Direct Out 32 (XLR)rearXLR male outputanalog audio—
Isolated Out 1 (XLR)rearXLR male outputanalog audio—
Isolated Out 2 (XLR)rearXLR male outputanalog audio—
Isolated Out 3 (XLR)rearXLR male outputanalog audio—
Isolated Out 4 (XLR)rearXLR male outputanalog audio—
Isolated Out 5 (XLR)rearXLR male outputanalog audio—
Isolated Out 6 (XLR)rearXLR male outputanalog audio—
Isolated Out 7 (XLR)rearXLR male outputanalog audio—
Isolated Out 8 (XLR)rearXLR male outputanalog audio—
Isolated Out 9 (XLR)rearXLR male outputanalog audio—
Isolated Out 10 (XLR)rearXLR male outputanalog audio—
Isolated Out 11 (XLR)rearXLR male outputanalog audio—
Isolated Out 12 (XLR)rearXLR male outputanalog audio—
Isolated Out 13 (XLR)rearXLR male outputanalog audio—
Isolated Out 14 (XLR)rearXLR male outputanalog audio—
Isolated Out 15 (XLR)rearXLR male outputanalog audio—
Isolated Out 16 (XLR)rearXLR male outputanalog audio—
Isolated Out 17 (XLR)rearXLR male outputanalog audio—
Isolated Out 18 (XLR)rearXLR male outputanalog audio—
Isolated Out 19 (XLR)rearXLR male outputanalog audio—
Isolated Out 20 (XLR)rearXLR male outputanalog audio—
Isolated Out 21 (XLR)rearXLR male outputanalog audio—
Isolated Out 22 (XLR)rearXLR male outputanalog audio—
Isolated Out 23 (XLR)rearXLR male outputanalog audio—
Isolated Out 24 (XLR)rearXLR male outputanalog audio—
Isolated Out 25 (XLR)rearXLR male outputanalog audio—
Isolated Out 26 (XLR)rearXLR male outputanalog audio—
Isolated Out 27 (XLR)rearXLR male outputanalog audio—
Isolated Out 28 (XLR)rearXLR male outputanalog audio—
Isolated Out 29 (XLR)rearXLR male outputanalog audio—
Isolated Out 30 (XLR)rearXLR male outputanalog audio—
Isolated Out 31 (XLR)rearXLR male outputanalog audio—
Isolated Out 32 (XLR)rearXLR male outputanalog audio—

Showing 96 of 96 documented physical ports. Scroll to review the remaining rows.

05 · Compare the decision, not just the price.

Alternatives

The rows are organized around fit, power, I/O, and system role so a cheaper unit cannot hide a more expensive workflow.

Compare
Seismic Audio SA-RMSS-32 Mic Splitter
Seismic Audio SA-RMSS-16 Mic Splitter
Seismic Audio SA-RMSS-24 Mic Splitter
SEISMIC
Fit📐 5U📐 3U📐 4U📐 2U
Power⚡ 0W⚡ 0W⚡ 0W⚡ 0W
Weight⚖️ 22.9 lb⚖️ 11.9 lb⚖️ 17.0 lb⚖️ 7.1 lb
I/O🔌 96🔌 48🔌 72🔌 24
Estimate💵 ~$1,099💵 ~$599💵 ~$849💵 ~$349
Deep diveCurrent selectionFull comparison →Full comparison →Full comparison →

06 · Resolve the questions that can change the purchase or build plan.

Planning questions

Short, source-backed answers surface rack fit, power, cabling, and connection details before they become surprises.

How will the Seismic Audio SA-RMSS-32 Mic Splitter affect rack fit and case depth?

It occupies 5U. Its documented depth is 220 mm.

How much power does the Seismic Audio SA-RMSS-32 Mic Splitter draw?

It is verified passive and requires no AC power.

What connections does the Seismic Audio SA-RMSS-32 Mic Splitter have?

96 documented physical ports, including Input 1 (XLR), Input 2 (XLR), Input 3 (XLR), Input 4 (XLR), Input 5 (XLR), Input 6 (XLR).

07 · See this unit inside a real rack plan.

Builder preview

Placement is only the start. Builder checks space · depth · weight, power headroom, dependencies, and compatible signal paths around this exact catalog item.Open in Builder
SA-RMSS-32 Mic Splitter positioned in a rack planA simplified plan shows the unit taking 5 rack units, with its documented connection path continuing to a planned destination.Seismic AudioSA-RMSS-32CONNECTED GEARnext signal destination5U · 220 mm deep

08 · Related gear, in the order you may need it.

Planning guides for splitter systems.