port

  1. miamigroove

    Adding Port Tubes to a GK MB150s/112 Microbass combo. Thoughts?

    Have a great little combo amp, the GK MB150S/112. Long since out of warranty, Ive been thinking about modding it by adding some bass port tubes to it. First, I changed the 12" speaker out from the stock model to a cast iron frame EV Black Shadow 200W. Next, was thinking about adding 1 or 2 bass...
  2. johnnysomersett

    Delta 15LF cubic capacity + port Q in SVT-1510

    Hi, I was wondering if anyone could cast their eyes over this? I'm no good at math and working out the numbers doesn't work for me as I don't understand it in the slightest! I aquired an old Ampeg SVT-1510 that had blown speakers. Looks like this one: In stock in my attic I had some...
  3. swamp_bass

    Can't stop tweaking - Extending the Port on a cab?

    Several 1x15" cabinets I've demoed in stores farted out early when I pushed them at low frequencies. Some of these 15" cabs were supposedly designed to work in parallel with much more powerful 410's from the same manufacturer. While there are many design considerations at play here such as cost...
  4. KJMO

    Port Tuning and Winisd

    The enclosure is about 3.7 cubic ft, with two Genz Benz 10pr300s from Avatar. It's sealed now, and Winisd says it should have pretty poor output below 100hz, which gels with what it actually sounds like. I thought it would be fun to try to put ports in, so I modeled it with 2 ports and it says...
  5. rufus.K

    Too Much port Area, how do I know?

    So Ive got this speaker cabinet. Its made by a well known brand, which I wont mention cos I dont want to hear why I shouldnt do this based on the brand... But it was/is a combo, one of their popular models with a 2ru airhead and one of their amps on top. Ive removed the head, and want to cut...