DOD SR835 User Manual

SR835 Crossover

Owner’s Manual

A Harman International Company

These symbols are internationally accepted symbols that warn of potential
hazards with electrical products.The lightning flash means that there are
dangerous voltages present within the unit.The exclamation point indicates
that it is necessary for the user to refer to the owners manual.

These symbols warn that there are no user serviceable parts inside the unit.
Do not open the unit. Do not attempt to service the unit yourself.Refer all
servicing to qualified personnel. Opening the chassis for any reason will void
the manufacturer’s warranty. Do not get the unit wet. If liquid is spilled on
the unit, shut it off immediately and take it to a dealer for service.

Disconnect the unit during storms to prevent damage

.

U.K. Mains Plug Warning

A molded mains plug that has been cut off from the cord is unsafe.
Discard the mains plug at a suitable facility.Never under any circum-

stances should you insert a damaged or cut mains plug into a 13
amp power socket.Do not use the mains plug without the fuse cover

in place. Replacement fuse covers can be obtained from your local retail­er.Replacement fuses are 13 amps and MUST be ASTA approved to
BS1362.

Saf

ety Instructions

Notice for customers if your unit is equipped with a power cord.

Warning:This appliance must be earthed.

The cores in the mains lead are colored in accordance with the following
code:

Green and Yellow - Earth Blue - Neutral Brown - Live
As colors of the cores in the mains lead of this appliance may not corre­spond with the colored markings identifying the terminals in your plug, pro­ceed as follows:

•The core which is colored green and yellow must be connected to the
terminal in the plug marked with the letter E, or with the earth sym­bol, or colored green, or green and yellow.

•The core which is colored blue must be connected to the terminal
marked N, or colored black.

•The core which is colored brown must be connected to the terminal
marked L, or colored red.

This equipment may require the use of a different line cord,attachment
plug, or both,depending on the available power source at installation. If the
attachment plug needs to be changed, refer servicing to qualified service
personnel who should refer to the table below.The green/yellow wire shall
be connected directly to the units chassis.

CONDUCTOR

L

LIVE

N

NEUTRAL

E

EARTH GND

Warning: If the ground plug is defeated,certain fault conditions in the unit
or in the system to which it is connected can result in full line voltage
between chassis and earth ground. Severe injury or death can then result if
the chassis and earth ground are touched simultaneously.

WIRE COLOR

Normal Alt

BROWN

BLUE

GREEN/YEL

BLACK
WHITE
GREEN

Warning

For your protection, please read the following:

Water and Moisture:Appliances should not be used near water

(e.g. near a bathtub,washbowl, kitchen sink, laundry tub,in a wet
basement, or near a swimming pool,etc.) Care should be taken so
that objects do not fall and liquids are not spilled into the enclosure
through openings.

Power Sources: The appliance should be connected to a power
supply only of the type described in the operating instructions or as
marked on the appliance.

Grounding or Polarization: Precautions should be taken so that
the grounding or polarization means of an appliance is not defeated.

Power Cord Protection: Power supply cords should be routed so
that they are not likely to be walked on or pinched by items placed
upon or against them, paying particular attention to cords at plugs,
convenience receptacles, and the point where they exit from the
appliance.

Servicing: To reduce the risk of fire or electrical shock, the user
should not attempt to service the appliance beyond that described in
the operating instructions.All other servicing should be referred to
qualified service personnel.

For units equipped with externally accessible fuse recepta­cle: Replace fuse with same type and rating only.

Electromagnetic Compatibility

Operation is subject to the following conditions:

•This device may not cause harmful interference.

•This device must accept any interference received,including
interference that may cause undesired operation.

•Use only shielded interconnecting cables.

•Operation of this unit within significant electromagnetic fields
should be avoided.

SR835 Crossover

INTRODUCTION

Congratulations,and thank you for your purchase of the DOD SR835 Crossover.
The SR835 is a high quality sound reinforcement tool capable of providing your
PA or sound reinforcement system with speaker protection and the increased
clarity and efficiency that results when bi-amping, or tri-amping.

So what is bi-amping, and tri-amping? A bi-amped system means you are using
two power amps to drive separate ranges of frequencies.The crossover is doing
a two way split, separating the high frequencies from the low frequencies and
directing the two ranges to different outputs. One amp receives the low fre­quencies,and powers your bass speakers.The other power amp receives the high
frequencies and powering the horns,or high frequency speakers.Tri-amping uses
three power amps because the crossover is separating the lows, mids, and highs
from each other.

The SR835 is capable of 2 way splits(bi-amp) in stereo, and three way splits (tri­amp) in mono.The SR835 uses Butterworth state variable filters providing an 18
dB per octave slope for the selected crossover frequency. This means that if you
have selected the crossover frequency to be 500Hz for instance, the signal com­ing out of the the low frequency output will loose 18 dB of signal for every
octave above 500 Hz. Likewise, the high frequency output will lose 18 dB of sig­nal for every octave below 500 Hz.

This Owner’s Manual is your guide to understanding how to get the most out of
the SR835. Please read it carefully and familiarize yourself with the controls on
the SR835. By doing so, you will be assured to increase the over all efficiency of
your system for years to come.

Your SR835 was carefully assembled and packaged at the factory. Before contin­uing any further, please make sure the following items have been included:

1

1 SR835
1 Owners Manual
1 Warranty Card
1 Detachable Power Cord

Please take a moment to fill out the warranty card. It is your safe guard in the
unlikely event that your unit requires servicing. Please save all packing materials
and use these materials to return the product if servicing is required.

SR835 Crossover

2

FRONT PANEL

1 2 34567 89101112

1. Power Switch - Used to engage or disengage the power to the SR835.

2. Mono/Stereo Switch - This switch configures the SR835 as two indepen-

dent channels of 2 way splits,or one channel with a 3 way split.When the switch
is in and the LED is lit, the SR835 is in Mono mode.

3. Gain -This is the input level for Channel 1 in Stereo mode, and is the mas­ter input level in Mono mode.

4. Low Level - This knob controls the volume for the low frequency output in
both Stereo and Mono modes.

5. High Level -This knob controls the volume for the Channel 1 high frequen­cy output in Stereo mode, and has no function in Mono mode.

6. Frequency - This knob sets the crossover frequency separating the lows
from the mids in Mono mode, and the lows from the highs for Channel 1 in
Stereo mode.

7. Range Switch - When depressed, this switch will multiply the selected
crossover frequency by 10.The LED will light indicating that the markings on the
Frequency knob (6) should be multiplied by 10.

8. Channel 2 Gain - This is the input level for Channel 2 in Stereo mode. In
Mono mode this knob has no function.

9. Low/Mid Level -This knob controls the volume for the Channel 2 low fre­quency output in Stereo mode, and the mid-range frequency output volume in
Mono mode.

10. High Level - This knob controls the volume for the Channel 2 high fre­quency output in Stereo mode, and the high frequency output in Mono mode.

11. Frequency - This knob sets the crossover frequency separating the mids
from the highs in Mono mode, and the lows from the highs for Channel 2 in
Stereo mode.

12. Range Switch - When depressed, this switch will multiply the selected
crossover frequency by 10.The LED will light indicating that the markings on the
Frequency knob (11) should be multiplied by 10.