20 Most Recent Roland Ac60 Acoustic Chorus Guitar Amplifier 60watts Questions & Answers

If you mean it's completely dead, no lights or anything, then probably the fuse is blown. The question then becomes"what caused the fuse tio blow?". If however, by loss of power you mean it's quiter but still producing sound, then the fuse is not blown.

Are the speakers hooked up? volumes up? Is the guitar using active pick-ups? if so, is the battery good? is any noise coming thru the amo?

All you need to confirm is to remove the connection to the guitar, remove the jack and cord to the guitar and now check if the noise is prevalent at higher volume, when the volume control is turned up. If so the fault is with the cord , the jack or the gutiar pick up insulation or internal connection or shielding.Cross check with a seperate cord or another amplifier to confirm the case.If the noise is from within the amplifier then it is possible there is fault in the preamplifier, fault with shielding of the inputs or the preamp, broken groung connection.Compliments of the Season.

you need to check the power supply of the amplifier with the help of a voltmeter. if that is OK the power amplifier IC(integrated circuit) is gone bad, see for overheating of IC.

Connect a jack cable from the monitor out on the Yamaha to the AUX IN on one of the AC60s. Then connect a jack cable from the MAIN OUT of the AC60 to the second AC60. Set the level going to the foldback by turning up the monitor control for each channel going in to the Yamaha. Be sure to switch on in this order: YAMAHA>AC60(1)>AC60(2). Switch off in the reverse order. Start with all volume controls down and bring them up to the level you need.

I think ideally you can connect the gutiar and the mic to the Roland amplifier which is also fed into with the ONE TRACK WITHOUT VOICE to the Roland.
Now to hear the track With ONLY VOICE you need to connect the track from Cubase to a seperate channel which gives output ONLY to the headphones.
You can feed the channel to the mixer and the headpone can be panned to the one channel that contains the voice .
I hope you can try and connect this way.

The only simple way that I could think of is for you to purchase a STEP DOWN TRANSFORMER rated at 500 watt, 110 volts, 60cycle. The transformer inside that amplifier have four output 12v and 15v DC.2amps It will be hard to get the transformer for that! Hope that might help you! taah!

I will solve the mystery...

The impedance varies depending on how you connect. It would be too complicated to explain the impedance to the average person.

From the schematic we have the TRS 1/4 inch jack having basically 100K and parallel 220 pf cap to ground EACH signal line and 10K resistance between. (The TRS jack if used disconnects the XLR and its components)

If one uses the XLR jack, one has an ADDITIONAL 100K each side in parrallel to ground PLUS an ADDITIONAL 2.2K resistor shunting between.

In ADDITION to the above, there is effectively 160K ohms to ground each side that is the input resistance to the input OP-AMP.

The effective impedance will depend on how and where you measure it.

Not sure what peizo you are using... For one on wife's violin we go into a X2 wireless which has about 1.6 Megohm. The receiver of course is fairly low impedance drive to the amp.

For the violin (Autolycus) pickup and others, severe distortion of the waveform existed when run directely into most amps and of course long cables worsened it at the high frequencies.

Hello. Hello. Generally the upper LCD display of bars is an indication that the internal battery is on it's way out and needs to be replaced.
In case you do not have the owner manuals, they can be downloaded from this address - enjoy: http://soundprogramming.net/manuals/Roland_D-20_Manual.pdf

I wonder why the ribbon cables have been replaced as they do not fail. Check the keys actuate the contacts properly.

I can't! In my opinion, no. Start drift boss customize your car by choosing different colors and patterns.

most likely we dont have crystal balls --need to have diagnosed for problem

Yes, you can use the second pedal on a Roland BK-5 keyboard to transpose the key of the music that you are playing up or down by a semitone at a time. To do this, you will need to press and hold the second pedal while playing the keyboard. You can also use the transpose function in the settings menu of the BK-5 to adjust the key of the music that you are playing by a specific number of semitones.

I am also using IOS and Android. So how can I improve some features? The black screen helps you relax when using the computer too much.