D.A.S. Audio REFERENCE Serie Manual Del Usuario página 27

- 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 Sub-
218G 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.
Model
Type
Modes Full range / 2 way
Limiters
Gain controls
Xover freqs
RF Series
CT-1
Stereo
---
Low
100 Hz
Manual del usuario/ User´s manual
Avoid series or series-parallel wiring schemes for
ST and R series products, since they degrade sound
quality and thus we do not recommend them for
applications other than background music, paging, or
surround sound.
2.2 Basic connection
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.
The following table shows the basic features of the
D.A.S. Controllers:
DSP-26
Stereo
2 x (2 way/3 way)
Variable per way
Low-Mid-High
Variable depending on the system
25