Author Topic: Beach Boy P.A. Output impedance  (Read 556 times)

0 Members and 1 Guest are viewing this topic.

Offline Novella

  • Jr. Member
  • **
  • Posts: 11
Beach Boy P.A. Output impedance
« on: October 18, 2015, 11:10:31 pm »
Just picked up a beach boy p.a. Head need to know what the output impedance on this is and if anyone has any info on these (schematic or other) any help is greatly appreciated.

Offline Ryan Phelps

  • Sr. Member
  • ****
  • Posts: 306
Re: Beach Boy P.A. Output impedance
« Reply #1 on: October 19, 2015, 07:16:08 am »
What P.A. amp do you have? Is it the Coliseum tube head? If so, see the attached schematic. Designed for two - 4 ohm speakers.

Good Luck!

Offline Novella

  • Jr. Member
  • **
  • Posts: 11
Re: Beach Boy P.A. Output impedance
« Reply #2 on: October 22, 2015, 03:12:42 pm »
It is called the beach boy pa it is a split chassis smiley logo amp

Offline loudthud

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 1,067
Re: Beach Boy P.A. Output impedance
« Reply #3 on: October 22, 2015, 06:41:19 pm »
The jacks on the back of the amp are wired to a screw terminal strip on the chrome chassis. One terminal should be marked "C". That is the Common or ground connection. The other wire will go to one of the other terminals marked "4", "8", or "16".  That is the total load impedance for both parallel output jacks.

Offline Ryan Phelps

  • Sr. Member
  • ****
  • Posts: 306
Re: Beach Boy P.A. Output impedance
« Reply #4 on: October 27, 2015, 12:49:55 pm »
Novella,
I own a smiley face bass amp head, but I don't think I've seen this particular amp before. Please post some pictures of your amp!

Thanks!

Offline EdBass

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 1,805
Re: Beach Boy P.A. Output impedance
« Reply #5 on: October 27, 2015, 01:02:58 pm »
Novella,
I own a smiley face bass amp head, but I don't think I've seen this particular amp before. Please post some pictures of your amp!

Thanks!

Ditto that; that is off the "coolness" chart, I'd love to add one of those rare beasts to my collection!