Specifications

www.vietapro.com
Why self-powered loudspeakers?
Speaker cable is the natural enemy of installers and hire companies alike. Long signal cable runs degrade the audio signal,
unless high-quality, (and thus expensive), sectionally-wound 100V line transformers are employed. In mobile applications, as
well as being inconvenient and bulky, speaker cables are unsightly and need careful positioning for health and safety reasons.
Self-powered loudspeakers eliminate the need for speaker cable and the accompanying amp racks, requiring only a local AC
supply and the input signal, which, if professionally balanced, can be run long distances using relatively modest cable without
loss of signal quality.
Incorporating DSP with the amplifier allows the package to be completely self-contained and the components to be accurately
matched so the audio system becomes totally “plug-and-play” and consequently quick and easy to set-up or install.
In the past, the addition of the electronics was accompanied by an unacceptable increase in the weight of
self-powered boxes but the latest generation amplifier/processors, as used in the La Line, solve this problem.
What do I look for when I buy self-powered speakers?
While the amplifier and processor must be of good quality, conventional questions like “how many watts?” are almost irrele-
vant when choosing a quality self-powered system like the La Line. Of course, there are many factors to consider but here is
Vieta Pro’s “1-2-3 check-list”!
No1: Sound Quality
As with all high-end, professional audio systems, great sound quality is priority one. One of the problems with comparing un-
powered speakers is that much of the outcome relies on matching the component parts. This can be a complex process, in-
volving not only the amplifier and speakers but also processor settings and the nature of any wiring, especially when long
runs of speaker cables are to be employed.
Auditioning competing self-powered systems couldn’t be easier. Simply provide the same balanced audio signal to the boxes
and listen.
No2: SPL
The power of an amplifier and power handling of a speaker, the “how many watts?” question, is relevant when matching
individual system components. But the power of any “plug-and-play” system cannot be judged this way, as the acoustic
power produced depends on many other things, particularly the sensitivity of the drive units. So, for complete systems, the
sound pressure level - dB (SPL) - figure is the one to use when comparing acoustic power. The La Line employs very high-
quality, high sensitivity drivers. These maximise the effectiveness of the on-board amplifiers to produce SPL values which
equal or exceed other heavier and more expensive systems.
No3: Size and Weight
The smaller the system, the less likely it is to interfere with sightlines and the look of an event or installation. The lighter the
boxes, the easier to transport and rig or install. Provided the sound quality is not affected, this is a definite case of “small is
beautiful”. La Line delivers no-compromise high-fidelity, high-power sound in a compact lightweight easy-to use package.
How do I best use the system with a subwoofer?
On La-8 and La-12, preset 4 adds a 80 Hz high pass filter for use with a subwoofer. If one La-112S subwoofer is used per
full-range cabinet, for example when a pole-mount is used, the XLR “through” cable can be used to send the unprocessed
audio signal directly to the subwoofer, which has complementary, on-board, low pass filter choices. If there is more than one
full-range cabinet per sub, best results are achieved with a dedicated, high-quality, mono-sum feed to the subwoofer.
For most environments, these factory recommendations will be the best options:-
With La-8, select the 100Hz pre-set (pre-set 2) on La-112S.
With La-12, select the 90Hz pre-set (pre-set 1) on La-112S.
However, depending on the location of the subwoofers and full-range cabinets in the acoustic space, there may be a better
combination using the La-112S preset options at 110Hz and 120Hz. As always, use your ears!
st Words…...
“Can you Tell me something about the company?”
Vieta is based in Barcelona, Spain, the home of Gaudi and the style capital of Europe!
Vieta has been making quality audio for over 50 years and introduced the Vieta Pro
range in 2004. Since then, Vieta Pro, and parent company Seesound, have received
many awards and nominations for quality and innovation.
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