My AD15 had a cold solder joint that was causing a similar problem.

Pre-amp valve shield missing?

Check the voltages on the output side of the transformer to see is it's bad.

As cheap as they are I would get several so you have backups if they go bad again. If they're soldered directly to the PCB you might want to add those IC sockets that the chips plug into so they can be easily replaced if needed.

The other codes are shown at the bottom of this specs sheet (date, assembly site, and lot codes). Interesting that the chip appears to be intended for 500 Watts output but the amp claims to be 1000 watts. Makes me wonder if they're over-driving the chip and that's what the problem is... https://www....

It looks similar to this: https://www.alibaba.com/product-detail/BAYMAK-IRS2092STRPBF-IRS2092S-SOP16-Import-Original_60788104369.html?spm=a2700.7724838.2017115.176.702d6f0bSlAczS - different pin, though. From what I have been told these chips are a common problem and the amp is not worth fixing. I'...

Give us high res resolution of the PCB and the chip your amp repairman claims is dead. I'm sure we can find it for you from somewhere. Orange, like all other manufacturers, use standard production electronics. It is the IRS2092 chip. Since posting this I found out that the manufacturer who produced...

Have you checked eBay for the chip? Wouldn't surprise me if you could get one direct from China really cheap.

Even when paired with a 30w speaker? It's not the wattage rating of the other speaker that matters, it's how many watts are going through the Alnico Blue which has a 15 watt capacity. Assuming both speakers are the same resistance the Blue will get half of the power so 15 watts when your AD30 is ma...

ArchDill wrote: ↑

Tue Aug 20, 2019 9:59 pm

Is an Alnico blue upgrade worth it for the money needed to be invested?

Between the tubes and the speakers, I could buy a new AC15 with a blue in it.

Get the Vox...

Bummer.

Phlowen wrote: ↑

Tue Jul 30, 2019 6:52 pm

jmb79, plug each cab into the head and you should be fine.

Or, getting back to your original question, you can also run one speaker cable from the head to one cab, and from that cab run a second cable to the other cab. Either way will work the same.

northernguitarguy wrote: ↑

Sun Jul 28, 2019 12:25 pm

If both cabs are 8 ohms, you can't do this, but you could either buy or make a 'parallel box' to run the two 8 ohm cabs at 16 ohms.

You would need a "series box" to run two 8 ohm cabs at 16 ohms.

No thanks. Politics aside, I considered them a national disgrace after their excessive celebration when they routed Thailand 13-0. The poor sportsmanship again with the tea sipping gesture against England today just confirms that impression.