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SUB THREE SYSTEM SETUP 

 

PACKING LIST 

The following components, accessories, and 

documents come with each 

SUB THREE 

subwoofer: 

1   SUB THREE subwoofer with an integral 

amplifier. 

1   Twenty-foot lengths of speaker cable. 
2    Dual banana plugs. 

 

 

 

 

3.   Spikes with jam nuts. (3/8 x 16 thread)   
1    

Operation manual 

1.   Five-year warranty registration

 

1    Power Cord

SETTING THE M5-HP FOR YOUR SUB THREE 
SYSTEM 

When the M5-HP is used with the SUB THREE 

series subwoofers, the sticker on the chassis cover 
should be ignored because these settings are for 100 Hz 
High Pass and the SUB THREE is designed for 80 Hz 
High Pass.  Set the switches according to the chart 
below. An alternate crossover setup method is available 
via our YouTube Channel on the website. 

 

1.  Remove the M5-HP cover and locate the 

internal set of 8 dip switches. The exact type of 
switch used 

may vary.

 

Single-Ended M5-HP Crossovers (RCA input and 

output with eight-position switch) Set the Single-Ended 
M5-HP to match the input impedance of the main 

amplifier.  

Balanced M5-HPB Crossovers (XLR input and output) 
Set the Balanced M5-HP to match the impedance SUM of the 
positive and negative legs of the main amplifier's input. (The 
individual legs must each be one-half of the impedance sum.) 

3. 

Turn on the switches listed for the value you found. 

The 

numbered side is "ON." Slide and toggle type 

switches are 

on when they are toward 

the numbers, and a rocker type 

switch is on when it is depressed on the side of the numbers. 
Some switches are labeled "OPEN" and "CLOSED." OPEN is 
OFF, and CLOSED is ON. 

 
 
 
 
 
4. Install the M5-HP into the signal path just before the 
main amplifier.  On receivers and integrated amps, install 
the M5-HP between the "Pre Out" and "Main In" jacks. 

 

CAUTION:

  The SUB THREE must be used 

with a properly adjusted Vandersteen High 

Pass Filter. If using an integrated, only those 

with a pre out and amp in loop are useable 

Summary of Contents for SUB THREE

Page 1: ...main amplifier s input specifications the main speakers efficiency and the listening room requirements The innovative Q control then allows you to tailor the bass response s character to best suit yo...

Page 2: ...characteristics and to best suit your sonic tastes The Q control is from 1 to10 Position 1 provides the tightest bass and best transient response while position 10 emulates a typical home theater sub...

Page 3: ...used may vary Single Ended M5 HP Crossovers RCA input and output with eight position switch Set the Single Ended M5 HP to match the input impedance of the main amplifier Balanced M5 HPB Crossovers XLR...

Page 4: ...B THREE s inputs is connected out of phase from the other input in a mono subwoofer system the inputs will cancel With stereo subwoofers connecting one subwoofer out of phase from the other will serio...

Page 5: ...Improving the electronicsorspeakerscan benefitfromadding two more subwoofers for surround channels 4 Subwoofers Left front right front left surround and right surround When the SUB THREE S are used wi...

Page 6: ...all three tracks Adjust the preamp volume up or down until these tracks average 70dB Example track nine 69dB track ten 72dB and track eleven 68dB This is your reference volume do not adjust until thi...

Page 7: ...he level and Q controls may be necessary When you determine the best crossover selection between the preamplifier and power amplifier setting for your system you are all done SERVICE In the unlikely e...

Page 8: ...e of the SUB THREE is compromised when it is connected to the main speakersratherthandirectlytothemainamplifier Can the M5 HP crossovers be plugged into either the Inputs of the main power amplifier o...

Page 9: ...HERE THE DEFECT WILL BE REPAIRED WITHOUT CHARGE FOR PARTS OR LABOR The speaker must be packed in the original packing and returned to VANDERSTEEN AUDIO via insured freight by the consumer at his orher...

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