JeffAbraham Posted March 10 Share Posted March 10 Hi, I dusted off my Helix LT for an old project. I'm on the current firmware. I started creating a new preset with snapshots and the preset has 2 different amps, an EQ block, delay and an overdrive. Simple stuff. Now when I try to add modulation most of them are grayed out, along with other types of blocks. Seems the preset can't handle a lot of blocks. Maybe having 2 amps in the same preset is taking up a lot of memory? Trying to remember from years and years ago, thought there was a technique to increase preset memory somehow or maybe that's not thing. Appreciate the help :) Quote Link to comment Share on other sites More sharing options...
silverhead Posted March 10 Share Posted March 10 You can't increase the amount of processing power (DSP) available in a preset. That's the limitation - not memory. There are 2 DSP processors in Helix - one per path. You can maximize your DSP availablity by using both paths/procesors in the preset; using both paths is different from creating a split/parallel path in Path 1. A single preset can easily accommodate two amps with one on each path. Set the Output block of Path 1 to the Input of Path 2. You've immediately doubled the DSP power for the preset. If you're already using dual path presets and block selections remain greyed out then you have reached the DSP limitation of the Helix device. You can't increase that; you have to remove one or more blocks from the preset before adding another block. 1 Quote Link to comment Share on other sites More sharing options...
JeffAbraham Posted March 10 Author Share Posted March 10 On 3/10/2026 at 1:31 PM, silverhead said: You can't increase the amount of processing power (DSP) available in a preset. That's the limitation - not memory. There are 2 DSP processors in Helix - one per path. You can maximize your DSP availablity by using both paths/procesors in the preset; using both paths is different from creating a split/parallel path in Path 1. A single preset can easily accommodate two amps with one on each path. Set the Output block of Path 1 to the Input of Path 2. You've immediately doubled the DSP power for the preset. If you're already using dual path presets and block selections remain greyed out then you have reached the DSP limitation of the Helix device. You can't increase that; you have to remove one or more blocks from the preset before adding another block. Thank you :) I'm such a newbie when it comes to Helix presets. How would I then create a split path where the XLR goes to front-of-house with a cab and then 1/4" out to a power amp/guitar cabinet without a cab? Quote Link to comment Share on other sites More sharing options...
silverhead Posted March 10 Share Posted March 10 You don’t need a split path. Place a Send block in your signal path where you want to feed the non-cab signal to your power amp. Place the cab block/model, as well as any other blocks you don’t want to go to the power amp/cab, after the Send block. Connect a 1/4” cable to the assigned Send jack and feed your amp with the full signal up to that point in the chain. Connect the XLR Main outputs (which include the cab model and everything else after the Send block) to FOH. 1 Quote Link to comment Share on other sites More sharing options...
JeffAbraham Posted March 10 Author Share Posted March 10 On 3/10/2026 at 3:48 PM, silverhead said: You don’t need a split path. Place a Send block in your signal path where you want to feed the non-cab signal to your power amp. Place the cab block/model, as well as any other blocks you don’t want to go to the power amp/cab, after the Send block. Connect a 1/4” cable to the assigned Send jack and feed your amp with the full signal up to that point in the chain. Connect the XLR Main outputs (which include the cab model and everything else after the Send block) to FOH. Thanks!! Where would I place delays, reverbs, etc. so the 2 outputs can share them? Really appreciate your help :) Quote Link to comment Share on other sites More sharing options...
silverhead Posted March 10 Share Posted March 10 Any FX blocks you place before the Send block will be included in the signal going out to your power amp/cab. Any FX blocks placed after the Send block will be heard only through the Main outs to FOH. 2 Quote Link to comment Share on other sites More sharing options...
datacommando Posted March 11 Share Posted March 11 On 3/10/2026 at 6:20 PM, JeffAbraham said: Seems the preset can't handle a lot of blocks. Maybe having 2 amps in the same preset is taking up a lot of memory? Trying to remember from years and years ago, thought there was a technique to increase preset memory somehow or maybe that's not thing. Appreciate the help :) Hi Jeff, What you have encountered here is not a question of “memory”, but more about how the DSP is allocated. Your Helix LT actually has 2 DSP chips available, which makes you better off than folks using single processor HX Stomp units - one chip runs the blocks on path 1A and 1B, the second does the same for path 2A and B. Some amp/fx models actually use far more DSP than others, but it’s not immediately obvious to the average user. Luckily, forum contributor Ben Vesco (Malhavok) has made quite a study of this stuff and has compiled a list, the latest version is available here:- https://benvesco.com/store/helix-dsp-allocations/ Hope this helps/makes sense. 1 Quote Link to comment Share on other sites More sharing options...
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