Technical Data Sheet
Line Array Speakers
SSOUNDS
SS-XTO-8P-100
SSOUNDS XTO 8P
Compact element of the XTO System, 2-way bi-amplified 8″, 110° constant directivity, 141 dB peak, 0°–10° splay.
Part of the XTO System. Compact element for theatre, side hangs, delays and downfill. XTO stands for Xtended Touring Output. Full system documentation at s-soundspro.com/systems/xto.
At a glance
- Model / SKU
- SS-XTO-8P-100
- Category
- Line Array Speakers
- Brand
- SSOUNDS
- Drive
- Passive
- Condition
- New
Applications
Overview
The XTO 8P is the compact element of the XTO System: dual 8″ drivers and a 3″ compression driver crossed at 900 Hz deliver 107 dB sensitivity and 141 dB peak from 55 Hz to 20 kHz. It shares its cabinet format and rigging with the XTO 10P, locking directly beneath it as downfill, with colour-coded 0°–10° splay pins and NL4 connectivity. Theatres, houses of worship, corporate AV: full system pedigree, and the same rigging and preset language as the largest hangs in the range.
- 2 × 8″ LF and a 3″ compression driver crossed at 900 Hz
- 141 dB peak SPL from a 30 kg cabinet, 55 Hz – 20 kHz (−10 dB)
- 110° constant directivity with colour-coded 0°–10° splay pins
- Locks directly beneath the XTO 10P as downfill, identical cabinet and rigging
- Bi-amplified over NL4 (LF 8 Ω · HF 16 Ω), high-grade titanium rigging
- Up to 24 elements per hang
Technologies
- CardioSteer
- Steerable cardioid arrays that direct low-frequency energy forward.
- DynaControl
- Holds the tuned tonal balance as voice coils heat under sustained output.
- FastSet
- Steel and aluminium rigging with captive titanium pins and detented splay for repeatable array geometry.
- PhaseTrue
- FIR phase-linear crossovers for a coherent impulse response through the crossover region.
- SNet
- Networked control and monitoring for every amplifier and processor in the system.
- VoxClear
- Voicing developed for speech intelligibility in acoustically difficult rooms.
Specifications
General
| Type | 2-way line-array element · bi-amplified |
| Certifications | CE · TÜV (rigging system) · EAC · WEEE |
Acoustic performance
| Frequency response2 | 55 Hz – 20 kHz (−10 dB) |
| Coverage4 | 110° × 8° |
| Sensitivity3 | 107 dB SPL nominal (1 W @ 1 m) |
| Maximum SPL1 | 141 dB peak @ 1 m |
Transducers & components
| Low frequency | 2 × 8″ cone drivers with phase plug, dipolar arrangement · 8 Ω |
| High frequency | 1 × 1.4″ exit compression driver, 3″ coil · 16 Ω |
Electrical
| Amplification | Bi-amplified by SSOUNDS D14X system DSP amplifier |
| Recommended amplifier power5 | 1,040 W |
| Nominal impedance6 | LF 8 Ω · HF 16 Ω |
| Crossover | 900 Hz |
Connectors & I/O
| Connectors | 2 × NL4 speakON (in / link) |
| Pin map | 1+/1− LF · 2+/2− HF |
Rigging & mounting
| System | High-grade titanium 3-point captive rigging · colour-coded splay pins |
| Splay angles | 0° – 10° adjustable |
| Array compatibility | Shares cabinet dimensions and rigging with XTO 10P, locks directly as far-throw and downfill; locks with XTO 12P via transition hardware |
| Max per array | Up to 24 elements per hang |
Physical & construction
| Dimensions (H × W × D)8 | 320 × 780 × 560 mm |
| Net weight7 | 30 kg / 66 lb |
| Enclosure | 15 mm Baltic birch · Polyurea finish |
| Grille | Powder-coated perforated steel with acoustic cloth backing |
| Handles | 2 side · 2 rear recessed |
| Colour | Black (custom RAL on request) |
Notes
- 1.Maximum SPL is the peak level at 1 m, driven with pink noise at crest factor 4 to the clipping point of the recommended amplifier, with the SSOUNDS system preset applied. Full-range enclosures are specified under free-field conditions; figures marked half-space are specified over a reflecting plane, the condition subwoofers are deployed in, which adds approximately 6 dB.
- 2.Frequency response is specified on axis at 1 m in a free field. The tolerance the figure is referenced to is stated alongside it; where no tolerance is given, the figure is the −6 dB bandwidth.
- 3.Sensitivity is specified at 1 W into the nominal impedance at 1 m on axis, averaged across the pass band of the enclosure.
- 4.Coverage angles are nominal −6 dB values averaged across the pass band. Per-octave directivity data is available from SSOUNDS system design support for prediction and modelling.
- 5.Recommended amplifier power is the amplifier output SSOUNDS specifies for this enclosure, driven with the SSOUNDS system preset. It guides amplifier selection and is not an AES power-handling rating for the transducers.
- 6.Nominal impedance is the manufacturer's rating for amplifier load calculation; minimum impedance across the operating band may be lower.
- 7.Net weight excludes packaging, flight case, accessories and optional rigging hardware.
- 8.Dimensions are stated in millimetres and exclude protruding rigging hardware, handles and connector panels unless noted.
- 9.All figures are typical values for production units specified under the conditions above. Individual units may vary within published tolerances.
Response
Frequency response: 55 Hz to 20 kHz (−10 dB) · 1/24-octave smoothed
−6 dB horizontal beamwidth: 110° nominal
Plot conditions. Curves are generated by the SSOUNDS engineering toolchain from this product's specification. Frequency response is shown 1/24-octave smoothed, normalised to the midband reference, with the passband corners at the stated tolerance; response varies within ±1 dB across the passband with a subtle shelf in the top octave. Magnitude slopes are 24 dB/octave beyond the passband corners. The beamwidth curve shows the −6 dB included angle: nominal coverage holds down to the pattern-control limit set by the cabinet width (f ≈ c/w) and widens below it.
Directivity
Lines of equal sound pressure. Blue: -6 dB. Dashed: -12 dB. White region holds within 6 dB of on-axis.
Lines of equal sound pressure. Blue: -6 dB. Dashed: -12 dB. White region holds within 6 dB of on-axis.
Lines of equal sound pressure. Blue: -6 dB. Dashed: -12 dB. White region holds within 6 dB of on-axis.
Normalised to on-axis. Rings at 6 dB intervals to a -30 dB centre. 1/3-octave band power.
Normalised to on-axis. Rings at 6 dB intervals to a -30 dB centre. 1/3-octave band power.
Charts span 55 Hz to 16 kHz, this cabinet's own operating band. The single-cabinet charts rate one element. Vertical pattern below the midrange is set by the length of the array, not by one box: the 12-element chart is a straight column of 3.84m at 0° splay, and it is the figure to design from. Horizontal coverage is a property of the cabinet and does not change with array length.
Vertical coverage by array size, −6 dB
| Elements | Length | 63 | 125 | 250 | 500 | 1k | 2k | 4k | 8k |
|---|---|---|---|---|---|---|---|---|---|
| 4 | 1.3 m | — | — | 82° | 38° | 19° | 9.3° | 4.7° | 2.3° |
| 8 | 2.6 m | — | 81° | 38° | 19° | 9.3° | 4.6° | 2.3° | 1.2° |
| 12 | 3.8 m | 118° | 51° | 25° | 12° | 6.2° | 3.1° | 1.5° | 0.8° |
| 16 | 5.1 m | 80° | 38° | 19° | 9.3° | 4.6° | 2.3° | 1.2° | 0.6° |
| 20 | 6.4 m | 62° | 30° | 15° | 7.4° | 3.7° | 1.9° | 0.9° | 0.5° |
| 24 | 7.7 m | 51° | 25° | 12° | 6.2° | 3.1° | 1.5° | 0.8° | 0.4° |
Frequencies in Hz. A dash means the column is not yet long enough to hold a pattern at that frequency and radiates through the full vertical plane. Straight hang, 0° splay: splaying the array trades pattern width for reach and widens these figures.
Chart conditions. Directivity charts are computed by the SSOUNDS system prediction engine as a phase-coherent wave solution of this product's driver complement: each way represented by its physical radiator (rigid-piston cones with real diameters and spacings; waveguides as continuous mouth apertures, holding the rated coverage on a flare-controlled axis above the mouth's pattern-control limit and radiating the mouth's own diffraction limit on a wavefront-shaped axis; a horn-loaded mid shares the high-frequency mouth), summed as complex pressure through crossovers at the published points in the topology the cabinet is driven with (linear-phase FIR where the ways run on separate channels of a system DSP amplifier, Linkwitz-Riley where a passive network splits them), with way alignment referenced on axis and 1/24-octave band-power resolution. Single- cabinet vertical figures are free-field beamwidths of one element; the published per-element vertical coverage of a line array is its rigging splay, the sector one element covers in a curved hang. Cabinet edge diffraction, horn loading detail, driver breakup and production tolerances are outside the computation. Directivity files for prediction software (GLL/CLF) are issued from measured data only.
Downloads & data files
- SSOUNDS XTO 8P: User Manualmanual
- Directivity table, horizontal (CSV) / verticalcsv
- SSOUNDS XTO 8P: Technical Data Sheetdatasheet
Loudspeaker data files for prediction software (GLL / CLF for EASE), 2D and 3D drawings and certification documents are issued on request. Contact support@s-soundspro.com and we will send the current release for this model.
System operation
Recommended: SSOUNDS D14X, one channel pair per XTO 8P in bi-amplified mode with the XTO 8P preset loaded. Typical deployments, 6 × XTO 8P per side over 2 × XTO S18: theatres, houses of worship and corporate AV. 4 × XTO 8P as downfill beneath an XTO 10P or 12P hang: front-fill for the first rows.
Architectural & engineering specification
The line array loudspeaker shall be of the SSOUNDS XTO 8P type, configured as a 2-way line-array element, bi-amplified. The line array loudspeaker shall incorporate a low-frequency section of 2 × 8″ cone drivers with phase plug, dipolar arrangement, 8 Ω, a high-frequency section of 1 × 1.4″ exit compression driver, 3″ coil, 16 Ω. The line array loudspeaker shall be capable of meeting the following performance criteria: a frequency response of 55 Hz – 20 kHz (−10 dB); a maximum sound pressure level of 141 dB peak @ 1 m; a sensitivity of 107 dB SPL nominal (1 W @ 1 m); nominal coverage of 110° × 8°. Electrically the line array loudspeaker shall provide a nominal impedance of LF 8 Ω, HF 16 Ω, a crossover at 900 Hz. The unit shall be passive. Connection shall be by 2 × NL4 speakON (in / link). The line array loudspeaker shall be constructed of 15 mm Baltic birch, Polyurea finish, measuring 320 × 780 × 560 mm, and shall weigh 30 kg / 66 lb. The line array loudspeaker shall be covered by the manufacturer's two (2) year limited warranty and shall be supplied by SSOUNDS or an SSOUNDS-authorised distributor. No alternate shall be accepted without prior written approval of the consultant or specifying engineer.
Safety & compliance
Read this section before specifying, installing or operating this product. It summarises the safety requirements set out in full in the product documentation supplied with the unit; where the two differ, the product documentation takes precedence.
- Suspension & rigging
- Overhead suspension is potentially hazardous and must be carried out only by trained and competent personnel using SSOUNDS-approved hardware, within the working load limits and array configurations published in the relevant SSOUNDS rigging documentation. Never exceed the stated number of enclosures per array or the stated splay limits. Inspect all rigging components, pins and retaining clips before every deployment and withdraw from service any component that is deformed, corroded or of unknown history. Secondary safety attachment is required where local regulation calls for it. SSOUNDS accepts no liability for systems suspended using non-approved hardware or outside published limits.
- Sound pressure level & hearing
- This equipment is capable of producing sound pressure levels that cause permanent hearing damage. Do not operate at high level in close proximity, and ensure that operators, performers and audience exposure complies with applicable occupational noise-exposure regulation. Provide hearing protection where exposure limits may be exceeded.
- Environment & mechanical
- Unless a published IP rating states otherwise, this product is intended for indoor use or for outdoor use under cover, and must be protected from rain, standing water and prolonged direct sun. Ensure ventilation openings are unobstructed. Stack, pole-mount and transport only as described in the product documentation, and secure the product against toppling wherever the public has access.
- Disposal
- At end of life, dispose of the product and any packaging in accordance with local regulation for electrical and electronic equipment. Do not dispose of electronic components in general waste.
Limited warranty: two (2) years
SSOUNDS products are warranted against defects in materials and workmanship for a period of two (2) years from the original date of purchase by the end user. Within that period SSOUNDS will, at its option, repair or replace the defective item with no charge for parts or labour. The item must be adequately packaged and dispatched, carriage pre-paid, to SSOUNDS or an SSOUNDS-authorised service centre, accompanied by proof of purchase and a returns reference issued in advance by SSOUNDS. Unauthorised repair, modification or removal of serial-number labelling voids this warranty.
This warranty does not cover
- Cosmetic wear, finish, grille cloth, paintwork and consumable parts.
- Damage caused by misuse, abuse, accident, neglect, or operation outside the published ratings on this sheet.
- Damage caused by transport or handling after delivery, or by inadequate packaging on return.
- Damage caused by mains or generator supply faults (over-voltage, under-voltage, phase imbalance, surge or incorrect earthing) or by lightning.
- Water, dust or corrosion ingress on products not carrying a published IP rating for the conditions of use.
- Damage resulting from amplification or processing outside the recommended configuration on this sheet, or from third-party presets.
- Products not purchased from SSOUNDS or an SSOUNDS-authorised distributor.
This warranty is in addition to, and does not affect, any statutory rights the purchaser may have under applicable consumer law. It is the sole warranty offered; no other warranty, express or implied, is given.
Warranty claims and returns references: support@s-soundspro.com · +44 20 3769 6537
Legal notice
All information on this data sheet is subject to change without notice. SSOUNDS reserves the right to alter specification, design and construction in the course of continuous product development.
Specifications, drawings and images are provided for guidance in system design and tender documentation. Where a figure is critical to a design, confirm it in writing with SSOUNDS before committing to a specification.
All text, images and drawings herein are the property of SSOUNDS. All trademarks and registered trademarks are the property of their respective owners.