Martin Audio DX1.5, Manual

All material © 2009. Martin Audio Ltd. Subject to change without notice. 

8) 

Selecting a specific preset 

Each binary file will load a family of presets into your DX1.5. 
 

Please note that the DX1.5 will retain its current preset until instructed to change to 
one of the newly loaded ones. 

Change the DX1.5’s settings to one of the newly loaded presets as 
follows: 

Press the blue 

Menu

 button, then the 

Back 

and 

Next

 buttons to find the

Global Memory Sub

Menu

and press 

Enter

. 

Use the 

Back 

and 

Next

 buttons to find the

Recall a Memory

 and press 

Enter

. 

Use the 

Back 

and 

Next

 buttons to find the

Crossover only

 and press 

Enter

. 

Browse for the appropriate preset using the 

Back 

and 

Next

 buttons or the 

Frequency

 knob. 

Note that the DX1.5 will default to its previous condition if the above operations are not 
completed and no buttons are pressed for 20 – 30 seconds. 

Input parameters 

Input parameters are not usually specified within standard Martin Audio presets – hence the 

Crossover only

 selection above. 

 
When configuring a new system always ensure that there are no input gain, base delay or 
input eq settings left on the input sections by previous users. 
 
Press the input 

EDIT

 buttons and scroll through the parameters for that input using the blue 

Back 

and 

Next

 buttons. See section 

14) Editing Audio Parameters – Input Channels

 for 

operating details… 
 
 

9) 

Amplifier power, amplifier gain, DX1.5 primary limiter 
and ClipLim settings 

Amplifier power 

We suggest you specify an amplifier capable of meeting the loudspeaker’s 

peak

 power rating 

– as long as you use the correct Martin Audio limiter recommendations. 
 

Primary limiters 

The primary 

Limiter

 parameters protect the loudspeaker from rms heating effects whilst the 

correct amplifier power specification and 

ClipLim

 settings protect the loudspeaker from 

transient overloads and clipping. 
 
Primary 

Limiter

 thresholds are factory preset for new products and recommended in the user 

guide CD controller spreadsheets for older products. Factory preset primary 

Limiters

 are set 

for power amplifiers with the pro-audio voltage gain* standard of 32dB (x40). Spreadsheet 
recommendations for older products show a range of primary 

Limiter

 settings depending on 

your chosen amplifier gain/sensitivity. 
 
* We recommend using power amplifier voltage with known

 gain

 settings if at all possible. 

Manufacturers’ 

sensitivity

 settings are not very useful as the resulting gain figures will vary 

from model to model depending on their power specifications causing spectral imbalance 
when using mixed amplifier set-ups. 
 
If you have to use a power amplifier set to a different gain standard, make absolutely sure that 
you adjust the 32dB standard factory preset or spreadsheet recommendation as follows: