Hi, I would like to adjust the rod on my Applause AE148. On the Ovation internet site it says a special tool is needed. The location of the rod inside the guitar makes it difficult to see what kind of tool is needed. On the photo it looks like a long hexagonal key. Would an ordinary hexagonal key do the job and what size would that be? I am in Mexico and there is no Ovation guitar dealer near by. Thanks for taking the time to read me, Laval

CTRL+F type 'ovation', there are 3 variations. You have one number too many.

http://www.ovationtribute.com/O_Decoder/O-Decoder%20rev8.htm

https://www.google.com/search?q=ovation+serial+number+lookup

..

didierpuech.free.fr/guitares/ovation/identification.html

That is a model number you have quoted

1 - Ovation
1- Acoustic roundback and hollowbody electric
1- Standard bowl
1- Balladeer model
and -1 is a colour code

Your serial number will probably be a letter followed by 3 to 6 digits eg "E3689"

If an Allen wrench, should be either 3/16" or 5 mm. Both were used.
.

contact or search ovation for info also look at Kamen musical instruments they made ovation guitars

This guitars turn on when a 1/4 male jack is fully inserted at 1/4 female jack installed on the guitar, also check the guitar female connector for looseness, it should be attached firmly, let me know a bit more to help more...

Contact them directely:

United States:
KMC Music Inc.,
55 Griffin Road South
Bloomfield, CT 06002-0507
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http://www.kmcmusic.com

If the guitar can "hear" a speaker that is driven by it then it will feedback if gain is set high enough (doesn't take much). The guitar makes a wonderful microphone. Often you can actually see the strings vibrate while feedback is in progress. Keep the speakers facing away from these guitars to reduce the chance of feedback. Sometimes you can increase the threshold before feedback by using your EQ on the amp. The acoustic guitars are FAR more susceptible to this than the solid body electrics..

Yes, a competent Luthier should be able to reset it... HOWEVER it may just need a truss rod adjustment. The truss rod bends the neck slightly to set string height in the middle of the neck.