Subwoofers

SS-1

Steerable 12-inch subwoofer matching the SQ-90 footprint.

A single 12-inch driver on a 1,200 W amplifier in the same 425 mm square cabinet as the SQ-90, with two steerable low-frequency beams so subwoofers are aimed like the full-range cabinets above them.

US list price
$7,950

US list price. Project and regional pricing through distributors.

  • Same cabinet footprint and rigging as the SQ-90 — stacks and flies as one array
  • Two independently controlled low-frequency beams
  • 25 Hz – 125 Hz, 125 dB at 10 m (long-term peak, dB Leq linear)
EDC Acoustics SS-1
SS-1 — photo

Specifications

SS-1 at a glance

Values from the current EDC datasheet, with EDC's September 2026 confirmations applied. Notes explain anything a downloadable document states differently.

SS-1 specifications
Acoustic
Frequency range25 Hz – 125 Hz
SPL125 dB at 10 m (1 element), configuration dependentLong-term peak, dB Leq (linear). See the measurement note on the range page.
Beams2, independently controlled
Transducers & amplification
Driver1 × 12"
Amplification1 × 1,200 W
DSP channels1
Connectivity
Audio1 × XLR3 line in, 1 × XLR3 line out; optional AES3 stereo or RJ45 Dante input
Network audio2 channels over Dante or AES67, assignable to either low-frequency beam
ControlRJ45 Ethernet 10/100 — a separate port from Dante by default
Power
Mains draw620 VA, powerCON TRUE1, 110 – 255 V AC
Physical
Dimensions (W × H × D)425 × 430 × 485 mm
Weight25 kgThe older web page stated 20 kg.
Construction½" birch plywood
Rigging16 × M10 and pole socket; side rigging tubes
Environment
Enclosure protectionIP55 standard; IP65 with the weatherised optionour own rating; the enclosure is not third-party tested to IEC 60529.
Operating temperature−20 °C to +50 °C

The SS-1 is a compact, high-powered subwoofer designed to deliver tight, accurate bass beneath one or two SQ-90s. Because its cabinet shares the SQ-90’s footprint and rigging, a column of SS-1 and SQ-90 flies as a single array from the touring frame, and its two steerable low-frequency beams follow the same coverage logic as the full-range cabinets.

Downloads

Documents for the SS-1

All resources →

Questions about the S-Series

What is the frequency range?
The SC columns are rated 100 Hz to 20 kHz (±3 dB), and the SQ-90 and the slim SC-30SL, SC-60SL and SC-90SL 80 Hz to 20 kHz. The SS-1 and SS-3 subwoofers extend the system to 25 Hz. Datasheets are on each product page.
How loud are they?
Published figures are 95 dB (SC-30), 101 dB (SC-60) and 104 dB (SC-90) at 10 metres for a single cabinet, and 106 dB at 16 metres for the SQ-90, configuration dependent; cabinets cluster horizontally and vertically to form larger arrays that behave as a single source. The figures are long-term peak, dB Leq (linear), and are crest-factor independent because they are peak values. We do not publish the convergent 1-metre maximum the industry usually quotes: converging ninety drivers into a single beam would give roughly 150 dB at 1 metre, which is not a condition these loudspeakers are ever operated in and tells a designer nothing about real coverage.
Can they be used outdoors?
Yes. Standard cabinets are rated IP55. A weatherised version of every model is available and is rated IP65, with stainless-steel and aluminium hardware, a waterproof grille lining and IP65 network and power connectors. All models operate from −20 °C to +50 °C. These are our own ratings — the enclosures are not third-party tested to IEC 60529, so if a project requires a certified rating, raise it at specification stage.
Do they take Dante or AES3 digital audio?
Every model has an analogue XLR line input and output as standard, with an optional AES3 stereo input or an RJ45 Dante input. Two channels are carried over Dante or AES67, and either can be assigned to any of the four beams. Control is on a separate network port by default; if a project needs control and Dante on a single RJ45, ask us. See the Dante and AES67 page.
How are they mounted?
Columns carry eight M10 points and can be mounted vertically or horizontally with the U-brackets; subwoofers carry sixteen M10 points and a pole socket; the SQ-90 uses side and rear rigging tubes and the touring rigging frame. Rigging drawings are in Resources. We do not manufacture the rigging hardware — the brackets, tubes and touring frame are made by specialist suppliers, and the working load limits and the standard met come from the maker's documentation. Ask us or your distributor for the certificate covering the item you are specifying.
Can the system report faults?
A monitored version reports transducer, thermal and amplifier faults over the network, and the cabinets carry an inbuilt measurement microphone. This is the version specified for transport and voice-alarm applications. The telemetry interface is not yet documented for third-party systems — see the developer pages for what is and is not specified.

Next step

Hear what happens when nothing else interferes.

An EDC session is a technical evaluation of sound behaviour, not a sales demonstration. See reflections reduced, coverage stabilised and spatial accuracy preserved — modelled first, then measured.