SmartAmp - Custom Configuration Tools

Input Routing

Select an output, then click the Routing sub-page. 

Name: Give the output a name for easy navigation, future reference, future service visits and troubleshooting. 

Source: Select your source for the output

Input 1, Input 2, Input 3, Input 4 - route directly from any physical input. 
Input 1+2 Sum - a mono mix of inputs 1 and 2. 
Input 3+4 sum* - a mono mix of inputs 3 and 4. 
None - mutes the output. 
*On SmartAmp 10, inputs 3, 4 and the 3+4 Sum options are not available. 

Signal Generator -  Toggle ON/OFF, route a tone or white noise to the output. 

Speaker preset

Select an output, then click the Speaker preset drop-down. The library includes presets for Optimal Audio and Martin Audio loudspeakers supported by your SmartAmp model. 

Selecting a preset recalls the EQ, crossover, limiter and impedance settings appropriate for that loudspeaker. These settings can be manually adjusted to suit the installation - the speaker preset is a starting point, not a lock. 

If you are using a third-party loudspeaker, leave the speaker preset on None (no processing) and build your own EQ, crossover, and limiter chain in the relevant sub pages. Further details below. Save the resulting configuration to a file so you can recall it for similar installations. 

Impedance

Each output has its own impedance mode. Click the Impedance sub-page and choose 4Ω, 8Ω, 70V or 100V. Use the 4Ω setting for loads below 8Ω, and use the 8Ω setting for 8Ω to 16Ω. In high impedance mode (70V or 100V), a 70Hz high pass filter becomes active. 

Caution - Be aware that the Hi-Z output pins can deliver voltages up to 100 volts. Always make speaker connections with the amplifier turned off, and confirm the wiring matches the impedance mode set in the software.

EQ

Each output has a 3-band parametric EQ. Click the EQ sub-page to view the response curve and adjust each band. 

Select a band (1, 2, or 3) at the bottom of the graph, then choose a filter type. From the following - Low cut (HPF), High cut (LPF), High shelf, Low shelf or Bell (parametric). 

Set Frequency, Gain and Q either by dragging the nodes on the graph or by entering values directly in the numerical text boxes. Use the Enable band toggle to bypass an individual band, or Flatten EQ to reset all three bands. 

Crossover

Each output has a two-point crossover (X1 and X2), allowing high-pass, low-pass or band-pass operation. Click the Crossover sub-page and select a band. X1 is the lower crossover point (high-pass filter), while X2 is the upper crossover point (low-pass filter). Use the Enable band toggle for band-pass operation. 

Using the Crossover type, both crossover points can be configured to either Linkwitz-Riley 24dB/oct or Butterworth 24dB/oct. 

Limiter

Each output has a peak limiter with adjustable threshold, attack and release, Click the Limiter sub-page to view the transfer curve and set the parameters. 

Threshold - the output level above which the limiter engages, in dB.
Attack time - how quickly the limiter responds when the threshold is exceeded, in milliseconds (ms). 
Release time - how quickly the limiter releases once the signal drops below the threshold, in milliseconds (ms). 

Use the Enable Limiter toggle to switch the limiter on or off for the selected output. When a speaker preset is loaded, the limiter is configured automatically with appropriate values for that loudspeaker; manual adjustment is only recommended for third-party loudspeakers or specific installation requirements. 

Delay

Each output support up to 60 milliseconds (ms) of delay, for time-aligning subs and satellite combinations or distributed-speaker installations. Set the delay in milliseconds; an equivalent distance in metres and feet is shown for reference. If your preferred method is to work in distance, the default delay measurement can be changed to metres or feet using the drop-down.  

Global Controls

Gain mode - select Stand-Alone for +4dBu input sensitivity or Zone for +20dBu input sensitivity when using SmartAmp with an Optimal Audio Zone processor. This is the software equivalent of enabling DIP-switch 8. 

Front Panel Trims - enable or disable the front-panel level controls. Disable to prevent end-user tampering once an installation is commissioned.