Announcement

Collapse
No announcement yet.

Behringer BX4500H

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • g1
    replied
    Originally posted by tbonuss View Post
    Thank you G1. Putting all those together, we now have a complete set. I don't know the etiquette, but maybe we should put them together and make a single post? I'm happy to do that.
    Post #2 now edited to include both schematics.

    Leave a comment:


  • tbonuss
    replied
    Thank you VintageKiKi. Very helpful.
    Thank you Enzo--gotit. I wasn't sure about the illustrated voltages. I appreciate the tip.
    Thank you JMFahey, I appreciate the insight.
    Thank you G1. Putting all those together, we now have a complete set. I don't know the etiquette, but maybe we should put them together and make a single post? I'm happy to do that.

    Again, thank you.
    Steve

    Leave a comment:


  • J M Fahey
    replied
    Originally posted by tbonuss View Post
    So, the PCB for the power amp and p/s says: Behringer Model P3000.
    You should have mentioned it on the first post

    I had found upto LPA1300, its smaller sister, 4 power transistors instead of 6 but everything else exact same values.

    All Designers have their pet ideas which they repeat over and over, so very often a certain model schematic is close enough to help servicing others.

    Leave a comment:


  • Enzo
    replied
    P3000 is a few years older. They are VERY similar, down to the part numbers even. But they differ. As far as I can spot, mainly in the compressor. The P3000 uses the older 3080IC in IC5, while the LPA1450 uses a 13700 IC, I would say the boards are equivalent, and they just went to the newer style board at some point during production.

    But since yours is blowing fuses, I highly doubt the compressor is involved, and the power amp part ought to be the same.

    The red voltages on the drawing kiki posted look to me like they are from someone's problem amp, so don't use them as models.

    Leave a comment:


  • vintagekiki
    replied
    https://www.diyaudio.com/forums/instruments-and-amps/267828-behringer-bx3000t-bass-head.html

    https://www.diyaudio.com/forums/attachments/instruments-and-amps/597547d1486447983-behringer-bx3000t-bass-head-p3000reve-pdf
    P3000REVE.pdf

    1)
    https://www.talkbass.com/threads/behringer-bx4500h-power-rail-voltage-differences.1442171/
    Behringer BX4500H Power rail voltage differences

    https://www.talkbass.com/attachments/p3000reve-pdf.3660804/
    P3000REVE


    Last edited by vintagekiki; 09-27-2020, 01:37 AM. Reason: 1)

    Leave a comment:


  • tbonuss
    replied
    Originally posted by Enzo View Post
    LPA1450 is the power amp. I am not sure what else it might be in.
    Sorry Enzo. Posting at the same time. Is that the same thing as P3000?

    Leave a comment:


  • tbonuss
    replied
    Yes. Thank you. The pre-amp seems to be fine, and the power amp is blowin' fuses. So, the PCB for the power amp and p/s says: Behringer Model P3000. I will look for that then. Again, thank you.
    Steve

    Leave a comment:


  • Enzo
    replied
    LPA1450 is the power amp. I am not sure what else it might be in.

    Leave a comment:


  • g1
    replied
    edit:
    Preamp and power amp schems. attached.
    Attached Files
    Last edited by g1; 09-27-2020, 08:19 PM.

    Leave a comment:


  • tbonuss
    started a topic Behringer BX4500H

    Behringer BX4500H

    I've not been able to find anything beyond dead links for this (including here on MEF). If I've missed it, please know that it's not due to a lack of effort.
    Thanks in advance.
    Steve
antalya escort
pendik escort
sex vidio
porno
antalya escort
beylikduzu eskort bayan eskort bayan escort antalya sirinevler bayan escort
gaziantep escort
Working...
X