Aguilar db750: right LED keeps blinking

[gillento]

Hi,

In an act of incredible stupidity during last night's rehearsal, I cranked the input/gain on my db750.
Result was a farting loud sound when I played the first note. Then the amp shut down immediately.
When I tried to power it again, it blew the fuse in the house circuit Upon powering again the right LED kept blinking.

Is there something I can do myself to get it working again?
I live in Europe and finding a decent service center is not easy. I’d hate to ship the amp.

 

[B-string]

Have you tried with no cab or cable connected? If one shorted, the amp may go into protect until the short is cleared. I can't readily believe the amp would fail do to what you did.

 

[gillento]

Just before I cranked the gain knob, I played the amp with its usual settings and everything was fine.

 

[B-string]

Just before I cranked the gain knob, I played the amp with its usual settings and everything was fine.

That sounds even more like a speaker cab problem then. Advice hasn't changed.

 

[gillento]

ok, after thinking about it, I get it
Will try another cab.

 

[B-string]

ok, after thinking about it, I get it
Will try another cab.

Awesome. Report back, it sure sounds like protect mode. Be sure the amp is disconnected from the mains power for a little while. 5 minutes should be enough.

 

[gillento]

you are right! Thanks a lot.
I just tried to power the amp without a cab and it powered up properly and the LED went "into regular" mode.
So it must be the db212 cab.
What should I look for in the cab? X-Over? woofer? both woofers?

 

[B-string]

Start by removing the grill and inspect the woofers. The cones should not be extended out or stuck in, but centered. Gently press evenly on the speaker cones and they should move smoothly with no rubbing or scraping sounds.

 

[gillento]

The problem is solved: the bottom 12” woofer of the db212 was blown.
Luckily, I had a spare one
Thanks for your guidance!

 

[BassmanPaul]

I would have liked to help but Mr B had all the Basses covered!

 

[B-string]

The problem is solved: the bottom 12” woofer of the db212 was blown.
Luckily, I had a spare one
Thanks for your guidance!

Glad to help.

 

[Chef]

^^ He's good at the helpful stuff!

 

[gillento]

Well, the db750 has been with the European distributor for almost three months.
Upon return it worked fine for a first trial.
Then a new issue occured: after powering up an waiting the appropriate amount of time in order to warm up, it takes a few hard hit to the strings (bass producing some output) in order that the amp produces some sound at all.
After that it is working like a charm for hours ....
Going into standy and back into playing mode is OK. Only when powering of and turning it back on asks for some output of the bass to get it started....
cranking the Gain seems to demand less output from the bass ....

It kind of seems like a kind of "clogged" thing....

I really don't want to send it back for 3 months again......

 

[Chef]

I bet if you contact Aguilar US customer service, they might have a specific idea of what to do here....

 

[B-string]

Try the most common trouble with serial effects loops first, use an instrument cable to loop the effects send to effects return jacks.

 

[gillento]

I bet if you contact Aguilar US customer service, they might have a specific idea of what to do here....

Well, Aguilar has adopted a "new" policy about CS. A few years ago, you could order spares (speakers, cab corners....) directly from the EU distributor.
They say, you (the player/consumer) are no official Aguilar repair man, so you can't possibly be able to change a ripped speaker or broken corner.
You could ship your amp directly to the distributor.
Nowadays, EVERTHING has to go through a dealer.... which makes it more expensive and time consuming without giving any added value.

I ha d some other concerns with this CS action but I'll discuss that openly only after I had some direct feedback from Aguilar.

 

[OldogNewTrick]

Well, that's why I sourced myself a suitable diaphragm, changed it and had my box with tweeter up and running again in no time flat.
Alternative: Pay for shipping (lots of kgs translate into lots of €/$), wait forever and pay, pay, pay....
The CS (German, maybe it's better elsewhere) of imported equipment is for me the biggest reason to buy local.
Even for my washing machine I can order spares online and fix it..............

 

[gillento]

I tried to order the original driver at aguilaramp.com but they won't ship outside the US
CS in Benelux is a mess!