Cube 80XL Owners ?

Ollin Landers · From: Willow Springs, NC

I am trying a Cube 80XL and seem to be having issues.

I know tone is a subjective thing but I'll try and describe as best I can.

Setup

GFI Ultra with GF-II pickup> L120 Volume pedal> Cube

Nothing else in the chain.

Cube 80XL on JC-120 clean

Vol at 10 o'clock
Base at 2 o'clock
Mid at 10 o'clock
Treb at 10 o'clock
Pres at 11 o'clock

When I pick with the volume pedal less than halfway on the sound is almost muffled like someone throws a blanket over the amp. Increasing the level of the volume pedal after picking still results in a muffled tone.

If I have the volume pedal at half or better volume the tone is clearer but still slightly muffled. If I pick with the volume pedal wide open the tone is very clear and sounds great.

I am ALMOST sure it's not the volume pedal because I don't have this playing through my NV 112. It seems to be an issue with the amp not responding to the levels being sent by the volume pedal.

Anyone have a suggestion?

Dick Sexton · From: Greenville, Ohio

Ollin, I'd read this thread... http://bb.steelguitarforum.com/viewtopic.php?t=228419 Many have found settings that works well for them and have shared them here... If you try them and still think you have a problem, it may be the amp... I have two and use the same setting on both, with only minor changes for the room... Good luck...

Roger Francis · From: kokomo,Indiana, USA

Try running your guitar straight to the amp bypassing the VP just to make sure it's not the VP, I've found these amps are perty sinsitive to any kind of changes even the chords you use at least from my experience anyway
_________________
Rittenberry SD10, 2 nashville 112s with telonics speaker, behringer EPQ450 power amp, 705 pups, Telonics FP-100, live steel strings, mogami cords, wet reverb

Steve Pawlak · From: Arizona, USA

Kevin Hatton · From: Buffalo, N.Y.

You need an impedance matcher like a Matchbox. You are runnin g into the classic volume pedal impedance problem.

Stephen Cowell · From: Round Rock, Texas, USA

Sounds like the Roland has a lower impedance input than the NV112... maybe the NV112 has an FET input? Don't know... but you could solve this by either using an active (buffered) volume pedal or putting a buffer (FET pre, matchbox, black box, etc) at the guitar... or you can bypass the pot in the pedal with a cap... the cap will shunt highs around the pot as it's turned down. Experiment with something like .01uF to .001uF or thereabouts... put it from the top (high) side of the pot to the wiper connection. This is typically done to guitars so the highs don't go away as the volume is cranked down.
_________________
New FB Page: Lap Steel Licks And Stuff: https://www.facebook.com/groups/195394851800329

Roger Francis · From: kokomo,Indiana, USA

Yeah cords, typing on iphone and watching tv at the same time 😄
_________________
Rittenberry SD10, 2 nashville 112s with telonics speaker, behringer EPQ450 power amp, 705 pups, Telonics FP-100, live steel strings, mogami cords, wet reverb

Ollin Landers · From: Willow Springs, NC

Someone with electronics knowledge please comment.

I intended to eliminate the amount of gear and effects I haul around by using the Cube so I really don't want to add a matchbox, BB etc. but I will if it means I can effectively use the Cube. I really like the sound when the VP is on full. Not to mention how versatile this amp is.

I am using George L cables and solderless plugs.

OK, is the input on the NV 112 more closely matched for a PSG and older Goodrich pot pedal than the Cube 80XL. Is this where the impedance issues are showing up?

NV 112
Impedance: High Z, 220 k Ohms
Nominal input level: -29.9 dBV, 32 mV RMS
Minimum input level: -53.2 dBV, 2.2 mV RMS
Maximum input level: 8 dBV, 2.5 V RMS

Cube 80XL

All they list in the manual is

INPUT: -10 dBu, 1 m Ohms;

Adding to the description of the problem.

I angled the amp while on the floor by propping a 2x4 under the front of the amp and that does not seem to help at all.

I elevated the Cube to about 3' off the floor on a chair and it helped but the VP problem is still noticeable. A good amp stand is on the way.

John Lacey · From: Black Diamond, Alberta, Canada

Ollie, I would try boosting your treble and presence up to around 12 o'clock. I find the tone knobs on the Cube to be quite sensitive. Also, I think there is a noise reduction circuit built into the cube that could affect the sound, so turn the amp down slightly and compensate with the volume pedal. That should give the amp more signal and help defeat the circuit.

Kevin Mincke · From: Farmington, MN (Twin Cities-South Metro) USA

Ollin, I would eliminate everything and go direct from guitar to amp. Turn your volume on the amp off and bring it up slowly to see if you have a clear strong signal. Use the settings as mentioned and it should be a real good starting point. If not a good clean sound, may be a defective amp.

Chuck Blake · From: West Virginia, USA

Ollin I have two GFI's and I run them thru a Hilton VP, into a Cube XL80 and/or Nashville 400.....no loss of volume either guitar or either amp.

No impedance issues noticed.

Chuck
_________________
2010 Rains 3x5 SD10, 2006 Rains 3x5 SD10 Powered by Quilter Tone Block 202 and 15' and 12' Custom Speaker cabs

Kevin Hatton · From: Buffalo, N.Y.

That's because the Hilton pedal has an impedance buffer in it. Get a Hilton pedal and your volume pedal tone changes go away.

J Fletcher · From: London,Ont,Canada

The symptoms you describe could be caused by having the input and output of the volume pedal mixed up. That is, the guitar is plugged into the pedal's output, and the amp is plugged into the pedal's input.

Michael Haselman · From: St. Paul

+1 on the Hilton, of course. Get one and all vp troubles go away forever.
_________________
Mullen RP D10, Peavey NV112, Hilton volume. Hound Dog reso. Piles of other stuff.

Forum Index > Electronics		Next oldest topic :: Next newest topic

All times are GMT - 8 Hours	Jump to: