Help me do the math (mixed ohms/watts)

Discussion in 'Amps and Cabs [BG]' started by TNCreature, Apr 22, 2012.

  1. TNCreature

    TNCreature Jinkies! Supporting Member

    Jan 25, 2010
    Philadelphia Burbs
    I have the following equipment and I am trying to determine what I should use for maximum output, sound quality and to NOT blow any speakers/fry amps.

    I know that I could sell everything and start from scratch, but with what I have listed, what would be the ideal setup?

    All Ampeg:

    Two Amps:
    B2-RE 450 w @ 4ohms/250 w @ 8 ohms
    PF-350 350 w @ 4 ohms/250 w @ 8 ohms

    3 Cabinets:
    B-115E 200 w/8 ohms
    B-410-HE 200 w/8 ohms
    B-410HLF 400 w/4 ohms

    Please, no personal preference commentary, or or suggesting what I should buy. This is what I have to work with right now.

    Thank you for helping me out! :)
  2. TomB

    TomB Supporting Member

    Aug 24, 2007
    Use one of the heads to drive the HLF & the other to drive the combo of the other two; your choice of which amp powers which stack. Is that what you were asking?
  3. Single stack? Likely the B2-RE and 2 x 410HE...
    Or as tomB noted above, add the PF-350 and 410HLF to the side and for sure that would eb the loudest.

    oops, I thougth I saw 2 410HEs...
  4. bongomania

    bongomania Supporting Member Commercial User

    Oct 17, 2005
    PDX, OR
    owner, OVNIFX and OVNILabs
    If it was me, I would start with just the PF-350 into the 4 ohm HLF. Great sound, reasonable package size, probably enough loudness, safe and proper.

    Then I would try to trade the B2RE and the 115 cab for a second one of the 8 ohm 410, as two of them together will be a killer way to get maximum great-sounding loudness from the PF-350.
  5. Pf and one of the he cabs. Ditch the rest and get a second matching he cab if you need more volume.
  6. TNCreature

    TNCreature Jinkies! Supporting Member

    Jan 25, 2010
    Philadelphia Burbs
    as you were suggesting, could I safely mix 4 and 8 ohm cabs?
    I think I am unclear on what you are suggesting.
  7. No you can not use both of those cabs with the pf at the same time. Use the hlf by itself, sell the other head and one of the HE cabs, when you get a second matching 8 ohm HE cab, use two of those.
  8. Maximum output and maximum sound quality are different goals. What is the end goal?

    Max output is probably the more powerful amp with the two 8ohm cabs, assuming the amp is only good for 4 ohms.

    Max quality may depend on having more output than you can get from the hlf and your favourite amp, or whichever single cab and amp you like.

    All the gear is readily tradeable, you could easily build another ideal rig without ever being without a gig rig.
  9. TNCreature

    TNCreature Jinkies! Supporting Member

    Jan 25, 2010
    Philadelphia Burbs
    Ah! I get it now.
  10. Alright! My >40 years of technical experience says...The B2-RE with the B-410HLF. Amp with most potential power coupled with bottom that can take it!
  11. I think it has more to do with tone. In my opinion the PF sounds better than the BR. The HLF is also not the cab for me tonally. I would prefer the PF and 115HE, and I would sell the rest to fund a second 115. The PF-350 with two 115HE cabs would be a killer little rig.
  12. TNCreature

    TNCreature Jinkies! Supporting Member

    Jan 25, 2010
    Philadelphia Burbs
    This is interesting because right now I am using the PF-350 with B-410HLF. It sounds pretty good but I am having troube getting the bass freq that I would like to hear (in other words not enough). So if I turn it up the damed limiter kicks in and squashes my dynamics (but I am afraid to turn it off) and the bottom end starts sounding boxy like a knocking.

    So this is my dilema. Ading another cab 410 to not knock/overdrive ? Another amp? 2 15's
    ? I am losing my mind.

    The B2-RE with the 410 and the 115 sounded really good until the 15 fried. That's when I got the PF.

    I know. I am exhausting.
    Thanks all.