Input, Output, Split, and Merge Blocks

Although they may not seem as exciting as amps or effects, Input, Output, Split, and Merge blocks are integral to the sound and performance of your presets. Use these blocks to create parallel and extended serial routings, gain-stage your levels, and more. Refer to Signal Path Routing Options for additional details.

Input Blocks

By default, all presets, even “empty” New Presets, include at least one Input block (at the left of Path 1A), but each preset can have up to four Input blocks (one each for Path 1A, 1B, 2A, and 2B). Click on any path’s Input block to select its options.

• To Select the Input Source: Choose Host to receive audio from the current track, or choose None for no audio input.

• When Host is selected for a path’s Input Block, its Trim and built-in Noise Gate parameters can be edited in the Edit Panel, as listed in the following table.

Output Blocks

By default, all presets, even “empty” New Presets, include at least one Output block (at the right end of Path 1A), but each preset can have up to four Output blocks (one each for Path 1A, 1B, 2A, and 2B). Click on any path’s Output block to select its options.

• To Select the Output Destination: Choose Host to receive audio from the current track, or choose a path destination (Path 2A, Path 2B, or Path 2A+B) to route the current path’s signal into the input of another path for an extended “serial” configuration. Optionally, choose None for no path output.

• Once an output destination (other than None) is selected, the block’s parameters are available in the Edit Panel, as listed below.

Split and Merge Blocks

Split and Merge blocks can be added to create parallel or dual paths, which can be very useful for isolating specific effects, creating alternate switchable routings, and more. See Signal Path Routing Options.

All paths are stereo. When a Split block is added, it splits the signal into Path A and Path B in parallel. When a Merge block is added, it mixes Path B back into Path A.

Adding a Split Block

1. Tap an empty area on Path 1A or Path 2A to select an empty block location.

2. Right-click on the empty location and choose Split. (Optionally, the Split option can also be selected from the Model Browser’s None category.) A Split > Y block is added, and a Path B is created with its own Output block.

   • Alternatively, drag an existing Amp, Cab, or Effect block down slightly, and it’ll be added to a new parallel path B connecting to Path A with Split > Y and Merge blocks.

3. To change the type of Split: Click on the Split block on the signal path and select one of the Split types (Y, A/B, Crossover, and Dynamic, as described below.

• Adding a Split to the left of an existing Merge block on path A automatically joins the existing parallel path.

• Multiple Split and Merge > Mixer blocks can be added to Path A for several parallel paths, one after the other. For example, say you want the signal to split into parallel Amp blocks, merge into a dual Cab block, and later, split into parallel Delay and Reverb blocks, and then merge again before the Output. There’s a lot of flexibility here.

• To create a Path B Input block, drag the Split down to Path B—or—clear the Split.

Split > Y

Adding a Split block adds a Split > Y by default. With a Split > Y block, the stereo input signal is sent to stereo Paths A (upper) and B (lower) evenly, but the Balance A and Balance B parameters can be used to separate the incoming signal into separate left (to Path A) and right (to Path B) channels.

Split > A/B

Split > A/B allows for tactile control over which path your signal is routed to—Path A (upper) or Path B (lower).

Split > Crossover

Split > Crossover splits the incoming signal into high- and low-frequency bands, allowing you to route and process them independently. For example, this can be useful with electric bass, where distortion may be applied only to the high frequencies, allowing the non-distorted low frequencies to pass through.

Split > Dynamic

Split > Dynamic lets you route your signal based on input level or even your playing dynamics. For example, if Path A has Delay and Reverb blocks and Path B has a Distortion, playing softly (or rolling your guitar’s volume knob back) will apply more Delay and Reverb, whereas playing harder (or rolling your guitar’s volume knob up) will lower the Delay and Reverb and add Distortion.

Adding a Merge Block

The purpose of a Merge block is to rejoin and mix the Path B signal back with Path A. Path B can be either rejoined after a Split block or when it exists as a complete parallel path with its own Input block.

1. Tap an empty area on Path 1A or Path 2A to select an empty block location.

2. Right-click on the empty location and choose Merge. (Optionally, the Merge option can also be selected from the Model Browser’s None category.)

3. A Merge block is added, and a Path B is created with its own Input block (provided a Split block hasn’t already been added to the Merge’s left).

   • Note that there is only one type of Merge block, and Path B’s output is routed to and mixed with Path A by the Merge block.

   • Alternatively, drag an existing Amp, Cab, or Effect block down slightly, and it’ll be added to a new parallel path B connecting to Path A with Split > Y and Merge blocks.

• Adding a Merge to the right of an existing Split block on path A automatically joins the existing parallel path.

• Multiple Split and Merge > Mixer blocks can be added to Path A for several split-parallel paths, one after the other. For example, say you want the signal to split into parallel Amp blocks, merge into a dual Cab block, and later, split into parallel Delay and Reverb blocks, and then merge again before the Output. There’s a lot of flexibility here.

• To create a Path B Output block, drag the Merge down to Path B—or—clear the Merge block.

Merge Parameters