Question about Orange Rockerverb Rk50tc 50watt Electric Guitar Amplifier

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Repair gain on orange crate 15 watt amp.

A high pitch squeal whenever the distortion level or volume is set high on the high gain channel

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Frying sound from amp intermittantly


then the problen is in the power amp section after the preamp stage. Contact Crate for your nearest service center.
http://www.crateamps.com/support/index.php

Mar 03, 2014 | Crate Ca6110dg Gunnison 60 Watt Acoustic...

1 Answer

My clean sound is very dirty. it sounds like the crunch channel is on and turned down.


I'm not sure which amp you're playing thru. but generally the settings you want for a clean sound. check your drive (or Gain ) knob. You want it about half way.and your Channel volume, half way. those are good starts. then let your master volume do the rest. Also, make sure, if you have active pick-ups on your guitar. check the batteries. if they're low, it can cause distortion. if this doesn't resolve, then its internal. could be anything at that point.

Oct 02, 2013 | Line 6 Spider Iii 15 Modeling Guitar...

1 Answer

My tiny terror sounds the same volume when switchin between 7 or 15 watt settings


Well, the thing to shift between those is more of a marketing ploy than a useful function. The difference from 7 to 15 is ONLY 3 Db... which is about the minimum step one can hear in sound level... The amp might be able to deliver more power at the 15 setting than it can at the 7, but you have to crank it up to do it...

Dec 23, 2010 | Orange Amps Orange Tiny Terror 15 Watt...

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When i play on my line 6 amp (15 watt), the distortion doesn't work at all, like i tried using a number of different cables and all of my guitars and i get the same result. It basically sounds like i'm...


Since you have tried all external possibilities, this will require troubleshooting. If you are not adept in electronics, you best take this to a shop familiar with this model.

If I were troublleshooting this, I would suspect the power amp transistors or connections to them might be bad, but the testing would likely use an oscilloscope to trace the signals in an expedient manner..

One schematic for Crate I found uses darlington transistors TIP142 and TIP147.

Jul 29, 2010 | Line 6 Spider Iii 15 Modeling Guitar...

2 Answers

Orange TT. cuts out on high gain on both channels, what can be the problem?


You MAY be exceeding the capability of the unit causing the thermal protect of the PA chip to shutdown. A 15 Watt amp is NOT going to make a lot of noise unless you have super-efficient speakers that are say 15 inch ones in decent cabinets. You still will be limited in sound level. Just because the gain control goes to a paticular number doesn't mean the amp can take it !!! Mpost of these use 7 terminal amp chips about the size of a TO220 transistor. Heat sinks are OFTEN very inadequate.

May 27, 2010 | Orange Amps Orange Amplifiers Tiny Terror...

1 Answer

Crate bass amp bt220 limit led is flashing with the volume only at half


You can reach the limiting IRRESPECTIVE of where the volume control is set when you have a guitar or other source that has HIGH output.

Guitars that have battery in them with internal amplifiers are an example of a high output guitar. Plain inductive pickups may require the volume control to be set at say 70% to reach limiting.

Please NOTE that the volume control is NOT linear, but is an "audio taper".

Limiting means you are probably driving it too hard. Many learn the hard way when speakers and thee power amp fail.

When the cone is driven too far beyond the pole pieces of the magnet, then the IMPEDANCE of the speaker becomes relatively low and can damage the power amp. The limiter tries to prevent this by sensing the current and or voltage and will back off the gain internally. This causes distortion when it happens.

Dec 14, 2009 | Crate Music

1 Answer

High pitched squeal when the input jack is used.


Sounds like your master volume is turned up too much. The channel volume will make the squealing go away(caused by high gain and humbuckers). The best thing to do is dial in your favorite presets and change the channel volume to the correct level with the master volume where you usually keep it. I use my Spider Valve at master volume at about noon and the channel volume between nine o'clock and noon. Let me know if this does not solve the problem......

Aug 22, 2009 | Line 6 Spider Iii 15 Modeling Guitar...

2 Answers

MG100HDFX Amp - crunch setting seems too loud


There are 2 channels, Which means there are 2 sets of knobs ... One for clean and one for crunch. Start out with a low master volume and set up the crunch, Then the clen and switch between the 2 and make adjustments until they match volume wise ... Then turn the master up.

May 12, 2009 | Marshall MG100HDFX 100-Watt Amplifier Head

1 Answer

Plugging line level into my crate TX15. all inputs sound distort


guitar amps are all set to a low Z resistance configuration. wich are made for guitar only. make sure you are using the right cables.
you need sheilded guitar cable not unshielded speaker cable in many cases these cables look exactly the same. look at your cable look for the words speaker or instrument. you need the instrument cable. if you still have that problem. then you may just not be satisfied with the quality of the amp it self.

Feb 26, 2009 | Crate FlexWave FW15 Guitar Amp Combo, 15...

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