pg. 4 - Triad DesignerSeries Manual
Application-Setup
Specifications
Appendix
Triad DesignerSeries Manual - pg. 5
Appendix
Specifications
Application-Setup
The HPF-8 must be correctly configured for the model of
DesignerSeries loudspeakers it will be used with.
The HPF-8 is a low voltage, passive device,
however ALWAYS disconnect it from all speakers
and amplifiers before adjusting the internal jumpers.
The circuit board inside the HPF-8 comprises of eight separate
audio channels. Each channel features three sets of pins and one
connecting jumper.
There is an area on the product serial number label where the
individual channel designation can be marked once the jumpers have
been set.
J1 - DS500 (default)
J2 - DS300/DS400dc
J3 - DS100/DS200dc
Note: unless specified otherwise,
jumpers are set for DS500 as the
factory default.
IMPORTANT:
no more than one jumper should be
used per bank of 3 pins, e.g.
Set the jumpers as follows depending on the
speaker model being connected:
For DS100/DS200dc, set the jumper on J3
For DS300/DS400dc, set the jumper on J2
For DS500 (default), set the jumper on J1
Specifications
Setting the Internal Jumpers
Inside the HPF-8
To set the jumpers the lid of the HPF-8 must be removed by carefully unscrewing the four machine screws on the sides of
the chassis using a T-8 Torx bit.
The jumpers, J1, J2 and J3 for each channel are positioned as indicated in the diagram below:
Diagram 1: Internal circuit board layout of HPF-8
Important:
Ensure that the jumpers are fully pushed down onto the pins.
ONLY remove and replace the lid fixing screws by HAND. Always use the correct tool and
DO NOT
overtighten.
Ensure the lid is securely fitted to the product before it is installed.
Mark each channel’s fuse setting on the product serial number label for future reference.
Dimensions: 1U height front panel, 19” x 1.75 “ (482mm x 44.4mm), case depth, 8.375” (213mm)
Weight: 9lbs (4.1Kg)
Filter type: Passive 3rd order high-pass. 20dB/octave slope, -3dB at approx. 70Hz with
DS speaker connected
Fuse protection: Self-resetting, current sensing type. Fuse threshold set via internal jumpers
Compatibility: Suitable for use with DesignerSeries DS100, DS200DC, DS300, DS400DC, & DS500 only
Number of channels: 8
Connection type: 1x Springcon ® 4 pole connector per channel. Connector carries input and output for each
channel
Maintenance requirements: Protection fuses can be set by installer if necessary. Repeated tripping of fuses may require
fuse replacement by the manufacturer to ensure optimal speaker performance
Important Information
The HPF-8 has been designed specifically to enhance the reliability of your DesignerSeries series loudspeakers.
It features a high-pass filter and a current sensing fuse to protect the loudspeaker from being over-driven and potentially
damaged. If the HPF-8 senses excessive drive current from the system’s amplifier it will automatically reduce the sound level
from the speaker until the amplifier’s volume is reduced.
It is important to note the following:
Ensure that the correct internal jumper setting is used on each channel. Failure to do so could result in speaker damage unless
both HPF-8 and DesignerSeries loudspeakers are connected to it.
NEVER connect more than one DesignerSeries loudspeaker to an output channel.
Be sure that all connections are made in accordance with this guide.
It is not recommended that you use amplifiers with power outputs that are far greater than the loudspeaker’s own power rating.
It is not recommended that you intentionally cause the DesignerSeries to automatically protect the loudspeakers by deliberately
over-driving them.
If you find that the DesignerSeries automatically reduces the audio volume from the loudspeakers frequently it may suggest
that the amplifier being used is too powerful or that the layer of plaster over the speakers is too thick.