Sub 28D
Sub 28D
Sub 28D
Sub 28D
Sub 28D
Sub 28D
Sub 28D
Sub 28D
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SUB 28D
Sub 28D
Active Subwoofer 2x8" 800 Watt
Active Subwoofer 2x8" 800 Watt
We engineered the SUB 28 D to provide low-end reinforcement for compact satellites such as dBTechnologies L and K Series speakers.

This light and lean enclosure houses two 8“ woofers driven by a 800W digital power amp and an onboard digital stereo x-over.

Setting up mono and stereo satellite systems is a piece of cake with this amp and
DSP on board.

Technical Data
Speaker Type
Active Bandpass Subwoofer
Acoustical data
Frequency Response [-10dB]
45 - 150 Hz
Max SPL
125 dB
Directivity
omnidirectional
LF
2x8 "
Amplifier
Amp Technology
Digipack™
Amp Class
Class D
Peak Power
800 W
Processor
Controller
DSP 24 bit/ 48 kHz
Phase
0, 180 °
Limiter
Dual Active Limiter
Crossover Frequency MF-HF
100 Hz, 24dB/Octave
System Presets
Flat, Boost
Input
Signal Input
2x XLR
Signal Output
2x XLR X-Over Out/ Link Out
Mechanics
Housing
Multiplex with H.E.T coating, reinforced
Width
290 mm (11.6 in)
Height
520 mm (20.8 in)
Depth
505 mm (20.2 in)
Weight
19.5 kg (42.99 lbs)
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Digipack™
More power to your power amp — from a world leader in technology,
dBTechnologies leads the way in the field of digital amplification.
Our fully integrated digipack™ modules were developed specifically for use in very compact and active systems, based on the innovative technology designed for our digipro® power amps and used in our high-end DVA and DVX series products, which set new standards of performance in such a compact package.
The digipack™ power amp modules are rated more than 90% efficient, as only digital amplification can be. That means that they have no need for built-in fans and are extremely reliable and stable while operating.
Moreover, digipack™'s components are protected by our tried and tested built-in limiters, and our carefully designed circuitry ensures that the output remains even and transparent — the most important qualities for maximum listening pleasure — even in noisy environments.
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DSP: Digital Sound Processor
These models come with a powerful DSP. Serving as an active crossover and controller, it splits and limits the signal and aligns phases and delay times.
Best of all, it even enables dBTechnologies' engineers to fine-tune the enclosures for the most balanced response.
It is this perfect balance that ensures your signals - speech, playback tracks, and live music – are sent accurately in every detail.
That makes a dBTechnlogies product a real all-rounder for every sound reinforcement challenge.
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H.E.T. Hybrid Enclousure technology
Exceptionally light and remarkably rugged Developed by dBTechnologies, H.E.T (Hybrid Enclose Technology) housings are made of premium quality multiple wood with a hardwearing, durable, and scratch-resistant coating.
Tough, rugged plastic side panels provide excellent protection for the housing as well as integrated grips and electrical connectors for utmost handling convenience and safety.
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X-over
The cross over (X-over) is the intersection point of different frequencies from different ranges.
In sound systems it delimitates the areas in which low, mid, and high frequencies work.
A cross over is also an electronic object, active or passive, which comands the division of the frequencies' areas.
In other words, it separates an incoming full range signal into two or more areas of frequency.

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