The Subhorn-115sp is a self-powered hybrid bass horn complete with a top-notch 15" long stroke neodymium chassis, a 3-channel 4 kW power amplifier module and the DSP loudspeaker management system.

This universal, multiple use, high performance self-powered bass offers particularly excellent sound quality in a compact package. The 3-channel amplifier module makes the Subhorn-115sp ideal for building powerful satellite systems. The High Power Amplifier allows large dynamic reserves.

The Subhorn-115sp is a plug & play system.

All the required settings for different configurations are stored as factory presets in the internal memory. For best performance and reliability, simply selecting the corresponding preset on the Display for use as either, a single bass in the stack with several basses, or as cardioide and end-fire bass arrays, or as a center of a Satellite system in conjunction with different tops.

The active electronics are convection cooled by a large heatsink and are maintenance free. No dust or moisture can be sucked or drawn in, making the Subhorn-115sp ideal for permanent installations. The robust cooling fins are amply rounded and have no sharp edges.

The control unit, DSP unit, signal connections and the Speakon OUT terminal are protected against moisture with a weather-proof, transparent cover. The cooling system is waterproof and the powerCON TRUE1 connectors are equipped with a rubber sealing cap.

The extremely strong neodymium driver (B/L factor of 28) of the subwoofer reproduces low frequencies cleanly and accurately and at the same time produces a strong, punchy bass kick without being woolly. A clean attack and decay allows a high upper cut-off frequency and thus is useable with almost any top speakers.

The Subhorn-115sp is supplied in left and right versions. The basses are assembled with a large horn aperture providing optimal coupling of the sound field resulting in higher efficiency.

The hybrid construction of a single Subhorn produces ample bass. No stacking or doubling up of basses is necessary. (This is normally required with conventional horns in order to effectively provide low frequencies.) The stacking design of horns of the Subhorn-115sp with each additional bass has the advantage of enhancing the achievable lower cutoff frequency.

The stacking cavities and feet on the enclosure allow for horizontal and vertical stacking and ensure a safe arrangement without slipping. The bass can operate lying flat or standing upright. M20 pole mount sockets are installed on two sides of the housing.

There are 6 round handles affixed to the bass enabling handling by only one person. It is ideal for single or multiple usage. The Subhorn-115sp masters all sound reinforcement applications either for small events as a satellite system with spacer rod and top unit, or for an event of more than 10.000 people, in large stacks.

The removable front wheel board facilitates transport. The demountable boards are stackable.

The large 4" voice coil and elaborate ventilation openings in the magnet system make the chassis very strong, enable heat to be deposed and ensure low power compression. Unlike conventional bass horns, the 15" chassis in the Subhorn-115 is installed inverted for better heat eduction. The membrane cone operates in the sealed enclosure. The magnetic system is cooled by the air stream.


The woofer is in 8 Ω.

The 15"chassis of the Subhorn-115sp is powered by one channel (1.580 W/8 Ω) of the internal power amplifier module. 2 x 800 W/4 Ω are available for satellite or monitors.

A Subhorn-115sp can power a second Subhorn-115 and power up to 4 additional speakers.

Technical Data

1 x 15" Neodym long excursion woofer (LF) with 4" voice coil

Lower cut-off frequency
35 - 220 Hz

8 Ω

Powerhandling (AES / Peak)
1.000 W / 3.000 W

Sensitivity 1 W/1 m
103 dB SPL

Sound pressure at (AES / Peak)
131 dB SPL / 136 dB SPL

2 x NEUTRIK NL4 IN/OUT 2+/2-

Black Warnex textured paint RAL-9005, 2 coats

Dimensions / Weight
450 (H) x 610 (W) x 780 mm (D) / 38,5 kg

Integrated 3CH Amplifier Modul

3rd Generation Class D

Power output CH1
2.400 W/4 Ω, 1.580 W/8 Ω

Power output CH2 & CH3
800 W/4 Ω, 450 W/8 Ω, 200 W/16 Ω

Amplifier gain
LF: 32 db, HF: 26 db

Signal-to-noise ratio
>120 db (20 - 20.000 Hz, 8 Ω)

Damping factor
>1.000 (8 Ω, 1 kHz)

THD+N < 0,05 % (20 - 20.000 Hz, 8 Ω)

Start-up current limiting (soft start)
Protection circuit on and off transients
Under and over voltage protection
DC protection of outputs
Input limiter, peak limiter
Temperature monitoring of the heatsink and transistors

Intelligent and regulated switching power supply with automatic voltage detection
Switching between 120/230 V 50/60 Hz, worldwide use
Voltage range: from 85 - 268 V

Integrated DSP Loudspeaker Management System

64 bit, 96 kHz sample rate

Controllable units about software
Up to 128 self-powered loudspeaker and HDSP-Amplifiers in one network

Dynamic range input
120 db

Input level Nominal / Maximal
+ 6 dBu / + 23 db

0 - max. 0,5 ms

2 input mixers allow flexible routing to each output

EQ Filter
20 parametric EQ filters per path
each filter can be set as Bell, Shelving, Notch, or Allpass Filter

Butterworth, Bessel, Linkwitz-Riley

Per input and output

0 up to 800 ms (max. 275 m delay) in each input for the user
0 up to 17 ms (max. 6 m delay) per output for time alignment between the acoustic centers

Infinitely adjustable from 0° - 180°

Operable language
English, German, France, Spain

Software interfaces
Software update via Ethernet


Realtime monitoring for PC and MAC
Impedance measurement -monitoring of the connected drivers per output stage channel
Temperaturmessung der EndstufensektionTemperature measurement of the power amplifier section
Gruppenbildung zum gleichzeitigen Einstellen aller zusammengefassten LautsprechertypenGroup building for simultaneous setting of all combined speaker types
Dimmung und Abschaltung des DisplaysDimming and switching off the display
Standby-Schaltung des EndstufenmodulsStandby circuit of the power amplifier module
Passwortschutz mit Abstufung: Werkseinstellung / User-Ebene / KomplettschutzPassword protection with gradation: Factory setting / user level / complete protection



Transport cover Subhorn-115

Item no. 501151100 | 501151200

Transport cover for Subhorn-115/115sp, stable Cordura fabric with padding, all handles and connections are cut.

Detachable wheelboard Subhorn-115

Item no. 501154000

Detachable wheelboard to mount on Subhorn-115/115sp, 15 mm wood with polyurea coating, stackable, 2 butterfly locks, 2 handles, 4 blue wheels, engraved logo.

Distance rod with crank

Item no. 999921340

Distance rod for cranking with expanding mandrel system which provides a tight and firm fit for the speaker. Height: 92 - 152 cm. Max. load capacity: 50 kg.

Telescopic rod

Item no. 999921368

Telescopic rod with expanding mandrel system for play-free seating in the tripod base. Height: 110 to 180 cm. Max. load capacity: 35 kg.

M20 Adapter 250 mm

Item no. 999921329

The 250 mm long adapter is perfectly suited as a M20 single rod or as an extension rod.

Carrying bag for 2 x speaker stand/ rod

Item no. 999920000

Carrying bag for two speaker stands or distance rods, also with crank. Two inside compartments with zipper and sturdy handles. Material waterproof nylon.

Cable Clip for speaker stand/ rod

Item no. 999935000

The cable clip made of robust, durable ABS plastic is specially designed for speaker stands and distance rods with 35 - 36 mm tube. It adheres firmly to the tube and holds the cables securely and neatly in the 24 x 16 mm guide accessible from the outside.

speakON cable 0.5/1/3/6/10/15/20/30 m

Item no. 80440XXX1

Speaker cables in various lengths with Neutrik plug NL4FX. 4 x 4 sq mm, each wire 224 x 0.15 copper, diameter 11 mm, weight 273 g / m. Assembled with some pressed ferrules for maximum contact area and minimal contact resistance.

speakON adapter

Item no. 999654669

Adapter to connect two speaker cables.

XLR signal cable 0,5/3/6/10/15/20/30/50 m

Item no. 80205XXX5

XLR signal cable in different lengths with Neutrik connectors NC3FXX-B and B-NC3MXX, black housing and gold-plated contacts. Large wire diameter of 2 x 0,5 sq mm with 28 x 0.15 sq mm copper per core, 100 % shielding due to dense copper spiral turner and metallised fleece.

powerCON TRUE1-TOP 3/6/10/15/20/30/50 m

Item no. 80325XXX3

Titanex H07RN-F 3 x 2.5 sq mm cable in various lengths.The special jacket surface assumes little dirt and is easy to clean. Even cold nor flexible. Assembled with some pressed ferrules for maximum contact area and minimal contact resistance. With Neutrik powerCON TRUE1 - NAC3FX-W-TOP and NAC3MX-W-TOP device connectors.

powerCON TRUE1-TOP-Schuko 3/6/10/15/20/30/50 m

Item no. 80325XXX2

Titanex H07RN-F 3 x 2.5 sq mm cable in various lengths.The special jacket surface assumes little dirt and is easy to clean. Even cold nor flexible. Assembled with some pressed ferrules for maximum contact area and minimal contact resistance. With Neutrik powerCON TRUE1 - NAC3FX-W-TOP and Schuko device connectors.