UPTURNED T
series
SOUND REINFORCEMENT
ACOUSTIC RESEARCH
CONTROLLED RADIATION
User’s Manual
UPTURNED T
series
SOUND REINFORCEMENT
ACOUSTIC RESEARCH
CONTROLLED RADIATION
12
5.4 Connections
• PSUT8xx
PSUT8TE and PSUT8AE sound columns have a direct-contact plug on the bottom
– the PSUT8AE also has a socket at the top – for use in stacked system installations.
The passive versions of these columns (that is without the active subwoofer
PSUTBASE/A) can be connected to an amplifier through a 4-pole
SpeakOn
connector (full-range signal on pins 1+ and 1-) using the PSUT8-AC accessory. The
PSUT8-AC accessory consists of a wooden base equipped with butterfly hooks
and output socket for direct connection to the bottom face of the lowest PSUT8xx
element in the stack; it can be also installed on a floor stand and acts as an adapter
thanks to a SpeakOn “female” socket on the rear side (see figures 17 and 18).
• PSUT1 and PSUTS
The PSUT1 micro-speakers and the PSUTS subwoofer can be connected
- through a set of two standard
red/black
spring clamps - by inserting the
speaker cable without use of any connector. The PSUTS subwoofer has two
sets of clamps internally wired together to allow for easy parallel connection
of another sub and/or a system made up of several PSUT1 micro-speakers.
The PSUT1 satellite has only one set of spring connectors to be also used for
multiple connections (as shown in figure 19).
5.5 PSUT1 and PSUTS full-range connection
As an amplifier designed for operating loads of no less than 4 Ohm is highly
likely to be used, we list below the possible connections for using PSUT1
and PSUTS in
full-range
(a single amplifier channel for sub and satellite) to
obtain a good frequency response (depending on the geometry of the
installation) without creating nominal loads below 4 Ohm.
Due to the presence of passive filters, it would be incorrect to calculate
the parallel impedance of PSUTS and PSUT1 simply as in the case of two
parallel resistors (because we would underestimate it).
The following list of connections is therefore based on the real impedance
measured for the systems assembled as stated. Here, we refer to a single
-
left
,
right
or
mono
- amplifier channel (with a
stereo
amplifier the related
stereo configurations can be obtained by using double the number of
speakers).
Number of PSUTS
and type of connection
Number of PSUT1
and type of connection
0
UP TO 4 IN PARALLEL
1
1
1
2 IN SERIES
1
2 IN PARALLEL
2 IN PARALLEL
4 WITH A MIXED PARALLEL AND
SERIES CONNECTION
Please Note
: all the PSUTSs and PSUT1s are always connected
in parallel
using the dual connectors supplied with PSUTS subwoofer.
As shown by the table, configurations with a concurrent presence of (even
just) one subwoofer and more than 2 satellites - connected in parallel - on
the same amplifier channel are not admissible.
When using bi-amplification, on the other hand, it is possible to connect
up to 4 PSUT1 satellites in parallel to one amplifier channel (single load
= 16 Ohm) and up to 2 PSUTS subwoofers on the other channel (single
load = 8 Ohm). Bi-amplification requires the use of a processor in order
to separate the frequencies (crossover), limiting the signal and providing
sound optimization.
For stereo configurations, Peecker Sound
PS650-F
4-channel amplifier
with
PS266
processor or a set of two Peecker Sound
PSDSP series
amplifiers can be used (see paragraph 6: “System configurations”).
Figure 17. PSUT8-AC accessory, base for PSUT8xx models,
with SpeakOn female connector
Figure 18. PSUT8TE positioning on stand holder
using PSUT8-AC accessory
Figure 19. Connections between PSUT1 and PSUTS.
2 PSUT1 in series (left), 2 PSUT1 in parallel (right)
