[Harp-L] Johnson amp

["Walter Joyce" <wtjoyce45@xxxxxxxxxxx>]

As I posted a while back I bought the Johnson Laredo 25 watt all tube 
amplifier. I have used it on 3 gigs so far (luckily I am getting regular 
rotation at a bar in Nashua, NH). We are doing a 4th visit a week from 
Saturday, August 11.

I have a question for the amp/sound experts.

The one drawback I am having is finding a spot for the amp that allows for 
dispersal of the sound evenly while avoiding feedback at the volume needed 
to be heard. When it was behind the mic I sing through the feed back was an 
issue, so I tried putting it next to me just in front of the mic, and that 
solved the feedback issue.

BUT, the sound was great directly in front of me, but the seats to my right 
couldn't hear me even at high volume because of the limited dispersal of the 
sound. What i mean is the sound traveled great directly in front of the the 
amp, but not to the sides. no surprise there.

There is a jack at the back of the amp for an external speaker.

Here is my question. I read the owners manual and the external speaker 
should be an 8 ohms speaker (I'm guessing ohm, the symbol looked like an 
inverted U with feet).

Can I run a cable to the PA speaker from this jack? We use a Yamaha PA, a 
15" speaker, not sure of the ohms.

Or can I run a cable from that check directly into the PA board ?

Thank you in advance.

WTJ

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