VocoPro SUB-1500 - Manual (Page 13)

Connecting the SUB-1500
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• Evaluate the target equipment's available connections i.e., receiver/pre-amp mixer, speaker outs/pre-outs,
RCA/MDP jacks etc prior to "settling" on a method and buying any necessary cables.
• If your receiver powers, multiple, large, full-range main speakers, we do not recommend using the HIGH-LEVEL
MDP speaker jacks. This will not improve the sound of the main speakers and may not utilize possible receiver-
based crossover application. For surround systems, we recommend using the subwoofer/LFE output
on your amp or pre-amp.
• If you're using a receiver and smaller main speakers having limited bass response, using both a filtered or
unfiltered connection through the SUB-1500 will work equally well.
• Avoid connecting HIGH-LEVEL and LOW-LEVEL inputs to your SUB-1500 simultaneously to avoid possible
damage to your receiver and the SUB-1500 itself.
• Using the HIGH-LEVEL inputs requires some care, since this usually involves connecting it in parallel with
other speakers, and therefore generally reduces the impedance of these connections putting more of a strain
on your receivers amplifier.
Things to Consider Before Making the Connection
The Connection Methods
There are a number of methods to connect your SUB-1500 to your system. One method uses MDP speaker
cables, the other method uses RCA interconnect cables. Looking at the rear panel of the SUB-1500, you will
see two sets of MDP speaker terminals, one labeled 'HI-LEVEL IN', the other 'HI-LEVEL OUT', and two sets of
RCA jacks labeled 'LINE IN' (left and right) and LINE OUT (left and right). The configuration of your system will
determine how you will connect the SUB-1500.
Benefit:
You are able to connect and benefit from the SUB-1500 without the need of an amplifier with RCA pre-outs.
The full-range signal is sent to the SUB-1500 via the speaker-outs from your receiver. The SUB-1500's
adjustable low-pass filter feeds the specified low frequency range for SUB-1500 output and re-routes the signal to
your main left and right speakers via a direct connection.
High-level Connection (MDP)
Use if:
• Your amp or receiver does not offer line-level or pre-out jacks.
High-Level Connection
HI LEVEL OUT HI LEVEL IN
R
R R
R L
L
L
L
Left
Speaker
Right
Speaker
Receiver/Amp
Right Speaker
Out
Left Speaker
Out