I'm not real happy with effects through the JVM

[Santiall]

the best way to use guitar stompboxes is in the parallel loop with the level set at -10dBV and MIX at 100% wet, otherwise level problems and phase cancellations may occur.

With rack processors it depends on the processor itself but usually +4dBu and MIX between 0 and 50% with "killdry" or no direct signal from the processor work well without level problems. The MIX circuitry is designed so it keeps the direct signal more or less constant between 0 and 50% while increasing the Effect only and to keep the effect constant and attenuate the direct signal from 50% to 100% Wet. If the processor gets overloaded then setting the JVM to -10dBV will solve the issue.

If effects like compressors, gates or wah-wahs are used in the parallel loop then it is necessary to turn the MIX up to 100% wet, again to avoid phasing and level problems.

I have tested the JVM with a TC G-Force, Alesis Midiverb, Lexicon MPX-1, a couple of Behringers, a Boss GT-5 and few stomboxes and so far no issues were found. Of course if the Parallel loop is used in series (100% MIX) then the signal quality depends completely on the external effect.

If the mix is somewhere in its middle position and direct signal is not cancelled in the external processor the level problems and phasing may occur. The JVM's loop keeps its gain constant so level mismatches have to be dealt with the external processor either cancelling the direct signal or setting JVMs MIX towards 100%.

All this is applicable to any device with Parallel loop name it an amp, a mixer or whatever... some guitarists used to more simple series FX loops may find a parallel loop complicated or with "problems" but once knowing how to use it properly, its flexibility will be worth having it.

S.

 

[killertone]

:|::QBB:

the best way to use guitar stompboxes is in the parallel loop with the level set at -10dBV and MIX at 100% wet, otherwise level problems and phase cancellations may occur.

With rack processors it depends on the processor itself but usually +4dBu and MIX between 0 and 50% with "killdry" or no direct signal from the processor work well without level problems. The MIX circuitry is designed so it keeps the direct signal more or less constant between 0 and 50% while increasing the Effect only and to keep the effect constant and attenuate the direct signal from 50% to 100% Wet. If the processor gets overloaded then setting the JVM to -10dBV will solve the issue.

If effects like compressors, gates or wah-wahs are used in the parallel loop then it is necessary to turn the MIX up to 100% wet, again to avoid phasing and level problems.

I have tested the JVM with a TC G-Force, Alesis Midiverb, Lexicon MPX-1, a couple of Behringers, a Boss GT-5 and few stomboxes and so far no issues were found. Of course if the Parallel loop is used in series (100% MIX) then the signal quality depends completely on the external effect.

If the mix is somewhere in its middle position and direct signal is not cancelled in the external processor the level problems and phasing may occur. The JVM's loop keeps its gain constant so level mismatches have to be dealt with the external processor either cancelling the direct signal or setting JVMs MIX towards 100%.

All this is applicable to any device with Parallel loop name it an amp, a mixer or whatever... some guitarists used to more simple series FX loops may find a parallel loop complicated or with "problems" but once knowing how to use it properly, its flexibility will be worth having it.

S.

Santiago,

I have been using an older Ibanez delay in the parallel loop with the loop set to 25% wet and the pedal's mix set to 50% and it works great, no issues at all. The serial loop works well with thy Hush Super C I have as well. I have zero complaints as far as the loops go on the JVM, I think it just takes a little more tweaking when using a rack mounted processor. Like you said, once the mix levels are set correctly there are no probs at all. Well done!

 

[Santiall]

cool. With analog effects is less probable to have phasing effects but with digital ones the latency can create all kind of funny side effects...

 

[yngzaklynch]

Thanks for chiming in. I got the Yamaha Magic Stomp to where I'm good to go but haven't quite gotten the Digitech Digidelay pedal to work quite as well.

 

[Digital Jams]

Santiall,

Congrats on one freaking killer amp! Picked mine up from Gainfreak today and the amp is just sick. I have been playing one at local store but having spent an hour already this amp is just awesome.

G-major in the parallel at 50% with drykill works great.

BAck to playing....

 

[Digital Jams]

About overloading the processor with the JVM....with my settings from my MK IV yeah I was really nailing the Gmajor and had to back the input down to about 10:00 and that kept my meters around -20db.

JVM was set to +4db with the mix at about 40%

 

[timbo]

:|::QBB:

About overloading the processor with the JVM....with my settings from my MK IV yeah I was really nailing the Gmajor and had to back the input down to about 10:00 and that kept my meters around -20db.

JVM was set to +4db with the mix at about 40%

The setting you have there on the JVM loop and Gmajor ( I'm assuming killdry is "on") may sound good with reverb and delays from the G major, but try running a chorus effect patch or a Flange, Pitch etc on the Gmajor. I couldn't get anything to sound like a chorus, even if I had the depth and level at 100% on the Gmajor using those settings. It is so faint and distant that you can hardly hear the effects.


To me the optimum setup for the JVM and Gmajor is as follows:

JVM at +4db @ 100 % full wet
Gmajor: Killdry set to "off" , push the "levels all" button and set the "global in vol" and "global out vol" to 0db. Leave the "preset vol" to -6db so you have room for solo boosting.

But for a quick experiment to prove there is no tone or volume suck with the G major try this using the "Tightverb" preset patch on the Gmajor as an example:

Tap the "levels all" button again and temporarily set the preset volume from -6db to 0db. This rules out the so called volume loss complaints from people new to the Gmajor as every patch is preset with a -6db setting to leave headroom for solo volume boosts. People noticed that when turning off the effects loop on the JVM with a Gmajor in the loop that the volume increased and this is why because of the default -6db preset volume setting. Now grab your guitar and strike a nice rockin' A chord let say on the OD1 orange channel. Now while the chord is ringing out, punch the effects loop button on and off on the JVM and compare the difference in tone and volume. To me, there absolutely is none and the full reverb effect is there which is the only difference. Now try out a Gmajor patch with alot of chorusing and punch the loop in and out and you should have a full saturated chorus with no volume or tone loss.

Now, without changing the patch, try "your" JVM and Gmajor settings which were with the JVM at 40% wet set at +4db and with the Gmajor Killdry set to "on". Now do you see how the ability of your chorus to ring through has diminished or is non-existent?

Let me know what you think because this is what I ran into.

 

[Digital Jams]

:|::QBB:

:|::QBB:

The setting you have there on the JVM loop and Gmajor ( I'm assuming killdry is "on") may sound good with reverb and delays from the G major, but try running a chorus effect patch or a Flange, Pitch etc on the Gmajor. I couldn't get anything to sound like a chorus, even if I had the depth and level at 100% on the Gmajor using those settings. It is so faint and distant that you can hardly hear the effects.


To me the optimum setup for the JVM and Gmajor is as follows:

JVM at +4db @ 100 % full wet
Gmajor: Killdry set to "off" , push the "levels all" button and set the "global in vol" and "global out vol" to 0db. Leave the "preset vol" to -6db so you have room for solo boosting.

But for a quick experiment to prove there is no tone or volume suck with the G major try this using the "Tightverb" preset patch on the Gmajor as an example:

Tap the "levels all" button again and temporarily set the preset volume from -6db to 0db. This rules out the so called volume loss complaints from people new to the Gmajor as every patch is preset with a -6db setting to leave headroom for solo volume boosts. People noticed that when turning off the effects loop on the JVM with a Gmajor in the loop that the volume increased and this is why because of the default -6db preset volume setting. Now grab your guitar and strike a nice rockin' A chord let say on the OD1 orange channel. Now while the chord is ringing out, punch the effects loop button on and off on the JVM and compare the difference in tone and volume. To me, there absolutely is none and the full reverb effect is there which is the only difference. Now try out a Gmajor patch with alot of chorusing and punch the loop in and out and you should have a full saturated chorus with no volume or tone loss.

Now, without changing the patch, try "your" JVM and Gmajor settings which were with the JVM at 40% wet set at +4db and with the Gmajor Killdry set to "on". Now do you see how the ability of your chorus to ring through has diminished or is non-existent?

Let me know what you think because this is what I ran into.

I have not tried chorus or flanger yet but volume drops and changes I cannot stand so I went through several tests including channel changes and engaging and dis-engaging the loop and I have the volume close enough that I am not hearing a change.

I will mess around with your ideas to see what I come up with but in the end I am very happy with the loop. When my new rig is complete I will be running all amps wet/dry anyways using line-outs so loops will not be used.

 

[Santiall]

I've tried the choruses, flangers, harmonizers, etc with a G-Force with killdry ON and mix about 30-40% and they work really well... maybe in your Gmajor you have the effect level very low in the patch (FX Mix or whatever it is called) and that's why you cannot hear the full effect. Increase the effect to 100% and mix it with the JVM back MIX control. There are also a couple of settings for Pro/Consumer equipment that should be set accordingly to have good signal going through.

I'm borrowing a Gmanjor soon so I'll give it a try, it should work, at least with the G-Force it does but I'll post the findings here.

S.

 

[timbo]

:|::QBB:

I've tried the choruses, flangers, harmonizers, etc with a G-Force with killdry ON and mix about 30-40% and they work really well... maybe in your Gmajor you have the effect level very low in the patch (FX Mix or whatever it is called) and that's why you cannot hear the full effect. Increase the effect to 100% and mix it with the JVM back MIX control. There are also a couple of settings for Pro/Consumer equipment that should be set accordingly to have good signal going through.

I'm borrowing a Gmanjor soon so I'll give it a try, it should work, at least with the G-Force it does but I'll post the findings here.

S.

Thanks Santiall. Your input on this would be greatly appreciated as well.