Loud Professional

Smart Sub2.8R

Smart Sub2.5R



Smart Sub2.8R is a high-performance powered subwoofer designed for use with large scale,both touring and install applications.

This quite compact size system is equipped with two 18-inch. reflex-loaded extended low frequency loudspeaker designed for high SPL subwoofer applications in reflex  configuration providing deep sub-bass extension down to 35Hz, engineered for maximum linear excursion.

Designed to deliver high-quality, high impact sound reiforcement, Smart Sub2.8R is particularly suited for a whole variety of live music to installations and touring applications for which is required deep, strong bass at close range including clubs and high performance monitoring. 

The whole system is supported by Powersoft amplifier module with onboard DSP programmable via remote control, which come with pre-set data to maximise the performance of the speakers.

It can be as well matched with all the most challenging Full-Range and Line-Array of the VH Full-Range/VH Line-Array family.

It can be widely employed in Large Open Spaces, Arenas, Stadiums, Theaters, Conference Halls, Concert Halls and Large Scale Discos.


Smart Series: Sub1.8H || Sub2.5R || Smart1.0 || Smart1.2 || Smart1.5


Products || VH Full-Range || VH Monitor || VH Line-Array || VH Subwoofer || VH Micro || Smart Series || FocusEight



Powered vented subwoofer

Transducers: Twins 18in. long excursion subwoofer reflex loaded
Frequency range: 35Hz-1kHz +/-4dB
Crossover points:

HPF-LPF: 30Hz-80/90/100/110Hz (selectable presets)

Power handling: LF1+LF2: 1050+1050 Watts Program
Maximum SPL: 134dB continuos 140dB peak
Nominal coverage: Omni
Audio Input connectors: Female XLR input, male XLR link outputNeutrik
Mains connectors: Powercons In & Out
Amplifier module  
Class: Two channel switch mode, Class D
Power supply: Universal, regulated switch mode
Nominal power requirement: 100-240 V ±10%, 50-60 Hz
Operating voltage: 90V - 264V
Thermal 0°- 45°C - 32°- 113°F
Gain: 38 dB (voltage1 gain x40)
Input sensitivity: 11.15V / 3.43 dBu
Max input level: 15 dBu
Frequency response: 20 Hz - 20 kHz (±0.5 dB) @ 1 W, 8 Ω
S/N ratio: > 112 dB (20 Hz - 20 kHz, A weighted)
THD+N: < 0.05% from 1 W to full power (typically < 0.01%)
IMD: < 0.02% from 1 W to full power (typically < 0.005%)
Input impedance: 10 kΩ balanced
Slew rate: 50 V/μs @ 8Ω, input filter bypassed
Damping factor: > 500 @ 100 Hz
AD Converter: Dual 24 bit 48 kHz Tandem® architecture with 118 dBA S/N, THD < 0.02% (20 Hz - 20 kHz)
DA Converter: Dual 24 bit 48 kHz Tandem® architectureb with 115 dBA dynamic range, THD < 0.02% (20 Hz - 20 kHz)
Internal precision: 28 bit data path with 56 bit inner processing
Firmware: Update via ethernet port or RS485
Latency: 0.644 ms fixed latency architecture
Crossover: Butterworth, Linkwitz-Riley, Bessel: 6 dB/oct to 48 dB/oct
Delay: up to 10 ms per output
Limiters: Peak limiter, RMS limiter, frequency dependent RMS limiter
Enclosure Construction  
Shell: 18mm 13 Ply birch
Finish: Black or white Polyurea coated paint
Grille: Powder coated Steel
Height front: 1140mm(44.88")
Height back: 1140mm(44.88")
Width front: 576mm(22.67")
Width back: 576mm(22.67")
Depth: 730mm(28.74")
Net weight: 94kg(207.23lbs)



Integrated amplifier module


Amp. module



Two channel professional amplifier with onboard DSP













Smart Series


Smart Series Full-Range







Technical Drawing || Product Code70006


Drawing Smart Sub2.8R

Features <<

Dedicated Sub-bass powered system <<

Efficient Class D amplifier <<

Onboard programmable DSP, programming connector <<

Remote control & Networking <<

Four programmable DSP presets <<

Clip limiter and permanent signal limiter <<

Preset led and preset selector push button <<

Input volume potentiometer <<

Powercons In & Out <<

  • 2 XLR connectors for mono input + link output <<

Portable Sound & light weight <<

Four handles for easy setup <<

PCP Polyurea coated paint <<

Protection Bag <<

Accessories <<


Applications: Theatre || Congress || Club || Portable


The Company reserves the right to alter any specifications to the products and published documentations.