Page 6 of 13 Version 2.0 © KLING & FREITAG GMBH
User's Manual K&F SPECTRA 212 Sub Adapter
3. Safety Instructions
3.1 General Safety Instructions
The information described here does not relieve the user of the duty to follow the given safety
requirements and legal regulations.
The technicians responsible for installing the system on site are responsible for and guarantee
safe setup and use.
To prevent injury and damage, be sure to securely place the speaker system as specified in the
DGUV regulations 17 (BGV C1) or similar locally applicable accident-control standards.
Unless otherwise stated, use only KLING & FREITAG original parts for mounting the speakers.
Never use other parts (in particular, parts not made by KLING & FREITAG).
Be sure to always visually inspect all accessories and loudspeakers before use. In fixed installa-
tions, regularly check all system components for signs of wear. Visual inspection includes check-
ing the system components of the speakers as well as the mounting components. During the
inspection, check all mounting components carefully for deformations, cracks, bolt damage,
and corrosion. If there are signs of wear, cracks, or deformation, etc., replace the affected parts
immediately. See also the ‘Care and
3.2 Safety Instructions for Stacked Speakers
Tipping speakers impose a deadly risk for people standing near-by!
Be sure to follow the relevant national specifications, norms, and safety regulations.
Always make sure that the speakers are sufficiently secured, so they cannot fall over even when
external forces affect the speaker stack. Before installation, carefully check whether there are
any external factors that may cause the stack to fall over. These include, for example, the
ground slope or bearing capacity, winds, and impacts of persons or vehicles. Qualified and ap-
propriately trained installation personnel are in charge of evaluating the scenario and perform-
ing all required steps (including statics analysis). Proof of stability must be obtained if and as
necessary.
Stacked systems must not fall over even if they are inclined by 15° in any direction. If this re-
quirement is not fulfilled, be sure to take appropriate steps. E.g. lashing the
Where the stability of installed systems cannot be proven without additional safety measures,
those systems must be effectively secured against sliding and tipping to achieve compliance. For
example, secure the system against tipping using water tanks or floor bolts. Other possible
measures include lashing the speakers onto a suitable base or fastening them using straps.
With applications where winds may occur, for example, outdoor events, tradeshows, etc., be
sure to perform extra stability checks.
Make sure that the feet of stacked subwoofers engage with the corresponding hollows of the
lower speaker.
