D.A.S. Audio Rf Series - Manual (Page 8)

8 ohmios por canal de amplificador
Longitud del cable Sección mínima de cable
En metros En pies mm² Número del cable (AWG)
2,5 8 0,3 22
5 16 0,5 22
7,5 25 0,8 18
10 33 1,31 16
15 50 2,1 14
20 66 3,3 12
50 164 5,3 10
75 250 8,35 8
100 328 13,3 6
200 656 20,8 4
400 1312 33,3 2
4 ohmios por canal de amplificador
Longitud del cable Sección mínima de cable
En metros En pies mm² Número del cable (AWG)
2,5 8 0,8 18
5 16 1,31 16
7,5 25 2,1 14
10 33 3,3 12
15 50 5,3 10
20 66 5,3 10
50 164 13,3 6
75 250 20,8 4
100 328 33,3 2
200 656 52,9 0
400 1312 80,2 000
6
- Use the eight ohm table when connecting a
single eight ohm speaker per channel. For
instance, one
Rf-15.85 in each channel of a stereo
amplifier or the high frequency band of an
Rf-215.96.
- Use the four ohm table when connecting two
eight ohm speakers to an amplifier channel. For
instance, two
Rf-1585 units in parallel. Also for one
four ohm speaker per channel, such as for one Rf-
218 per channel.
When connecting more than one speaker to an
amplifier channel there are two wiring options. The
first is to run cable from the amplifier's output
terminals to each speaker. The second is to
connect the closest speaker to the amplifier and
then connect the two speakers together with a
loop through cable that has a Speakon NL4
connector on both ends. We'll be paralleling
speakers in both cases. The latter is the most
common and practical option, the former providing
a higher damping factor.
Never use a total impedance load that is lower
than the lowest impedance that an amplifier will
take. Virtually all professional amplifiers will accept
loads down to four ohms safely in stereo mode.
Many are rated for two ohm loads but often will
run into overheating protection when used this
way, particularly in high ambient temperature and
high output power applications. Never connect
more speakers to an amplifier's channel than it will
take, i.e. do not load a channel with a total
impedance that is lower than the minimum load
specified by the manufacturer.
Avoid series or series-parallel wiring schemes
for Rf series products, since they degrade sound
quality and thus we do not recommend them for
applications other than background music, paging,
or surround sound.
This section provides information on the pin
assignments and basic set-up for the different
enclosures. The "System Configurations" section
adds stereo system configurations with or without
sub-woofer
reinforcement. The “Application
Examples” section adds complete application
specific system examples.
Some models, due to the complexities of their
electronic processing, require the indicated D.A.S.
controller for the system to run correctly. Others
may
use generic crossover units with
recommended settings, although the use of the
D.A.S. processors is recommended. In general, we
stress the importance of the use of the D.A.S.
processors, since they are shipped with set energy
balances and crossover frequencies, and
adjustments cannot be made that could endanger
system components. By using the D.A.S.
processors, we can ensure the correctness of the
sound and the reliability of the systems.
Basic connection
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