You should also keep in mind that different value tone and volume pots, tone caps, shielding etc will have an effect on the impedance and ultimately the tone. Naturally, the quality of these cables matters a great deal. Now, 18 feet might seem more than enough but you have to count both the cable to and from the pedal board, all the patch cables and the tiny cables inside the pedals that are bypassing the signal when the pedal is off. Active low impedance pickups, on the other hand, are able to drive the signal through at least 100 feet of cable. Sometimes less, sometimes more, depending on the quality of the cable. Passive high impedance pickups are able to drive the signal through aprox 18 feet of cable. Passive, vintage style pickups has a high impedance while active battery powered pickups has a low impedance. Impedance is a measure of electronic resistance and the longer the signal path, the more resistance there will be. Most guitars deliver a high impedance signal or output. But, as with most things in life, it’s not that black and white. Either you’re pro buffers or you can’t stand them and insist on only using true bypass operated pedals. The debate surrounding this topic seems to be incredibly one sided. Tone is just as much about utilizing the full potential of your rig and regardless of your preferred approach, some basic know-how will get you far in reaching your goal. However, tone isn’t just about squeezing your amp or stomping pedals. Whether you plug your guitar straight into an amp or depend on elaborate pedal boards – tone matters. In this feature we will have a look at what’s really going on as well as a few tips on how to arrange your pedalboard. If the manufacturer specifies +4dBu, or if the manufacturer doesn't specific the level, then start with +4dBu and proceed carefully as you adjust the various levels of each effects as well as the unit's overall level (if you get squealing/feedback/bad sound, immediately switch the JVM's loop level to -10dBV and go back to adjusting your levels) this process might be quick and easy, or could require some time to get just right-it all depends on the units.Īlso, you can download for free the JVM410H/C owner's manual/handbook from the Marshall website that will more thoroughly explain the functions and operations for the JVM.Few topics seems to stir up so much controversy and opinions as whether true bypass or buffered pedals are the best solution for your tone. Some rack effects and some multi-effects units can either +4dBu or -10dBV depending on whether the manufacturer allows for user customization option of the unit's level. Individual stomp boxes/pedals are best used with the amp set to -10dBV. I recommend keeping it simple and start with the "serial/parallel fx loop" then see what kind of results you get.Īt what setting is the JVM's "loop level" switch set to? Again, you didn't specify though it matters quite a bit. pedals, multi-effects, rack) or connection method (e.g. Most people typically connect their effects through the "serial/parallel fx loop" regardless of devices (eg. The JVM's "power amp insert/serial loop" is commonly used to connect the JVM to separate power amp, separate preamp, or effects processors with high headroom. Are you are connecting your effects to the JVM's " SERIAL/PARALLEL FX LOOP" and not the JVM's " POWER AMP INSERT/SERIAL LOOP"? Most effects typically get connected to the "serial/parallel fx loop" for a majority of applications. What loop are you using to connect your effects? You didn't specify with loop you are using, so I thought it would be good to ask. What kind of effects units are you trying to run in the effects loop? Pedals? Multi-effects? Rack effects? I noticed you didn't say, so it makes sense to ask. I've thrown in expensive and inexpensive pedals, floor-based multi-effects processors, and rack-based effects processors all without issue. I, too, have a JVM410H (2008 stock) with no problems using the effects loop.
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