Speaker blew. Concerns of happening again

Discussion in 'Amps and Cabs [BG]' started by Chris1985, Feb 26, 2018.


  1. Chris1985

    Chris1985

    Sep 5, 2017
    1st post on this web site, tho I’ve read a lot of different threads from other bassists that have been very helpful to me. So thanks to everyone in advance! I have to mention: I am not a hardcore gear head nor do I have a lot of technical knowledge so dumbing down your responses would be helpful! Haha! On to the problem at hand: blew a speaker (crack and popping sound) continued playing, then...complete deadness from the cabinet. No sound

    Gear: Ibanez 806SRFF, GK 700rb ii head, Ampeg SVT410HLF cab.
    Pedals: MXR bass di +, Korg Pitchblack tuner, Dunlop Crybaby q95(guitar wah)

    Both the head and cab were bought used. Was this maybe a fluke? I am getting it repaired under protection plan, just don’t want it to happen again. We do tune very low (standard C guitars) so I tune GCFA#D#G#. I know of many bands that play this low and even lower. I’d imagine they don’t keep blowing speakers and just keep replacing them? Should I add another cab to help disperse the air pushed? I know an obvious answer would be to turn low end down, but for me, seems hollow and thin. Is there a way to still get the booming lows when you dial down low end eq? Thank you for suggestions
     
    Last edited: Feb 26, 2018
  2. Spidey2112

    Spidey2112

    Aug 3, 2016
    Sounds like a pretty good rig... how long did you have it, before it blew?
     
  3. Zooberwerx

    Zooberwerx Gold Supporting Member

    Dec 21, 2002
    Virginia Beach, VA
    Not enough info but I will venture to say that, given a "healthy" enclosure, you pushed the drivers beyond their limits. I can think of a half-dozen suggestions including amplitude modification (...turn down the volume), quit bumping EQ settings, add HPF, add compression...the list goes on.

    You're lucky it's being covered by a protection plan. Depending on the damage, it could be deemed "abuse".

    Riis
     
  4. BassAndReeds

    BassAndReeds

    Oct 7, 2016
    How loud are you playing? Is your EQ flat? Are you using a bass boost?
     
  5. Chris1985

    Chris1985

    Sep 5, 2017
    GK’s head maunal suggests to have the main volume (woofer) at 12 o’clock. That’s where I have it. Input volume was maybe at 8 o’clock possibly lower. The eq on my bass guitar is all the way up for bass, mid, and high knobs. Eq on my GK head is highs at about 3 oclock, high mids and low mids at 4 o’clock, and lows at 3 o’clock
     
  6. Chris1985

    Chris1985

    Sep 5, 2017
    The volume shouldn’t have been a problem. I can understand my bumping of eq and my settings there. But the volume wasn’t even a quarter of the way up... that’s too loud?
     
  7. Chris1985

    Chris1985

    Sep 5, 2017
    A few months. But both head and cab were used. I called about it and the associate said the speakers could’ve been pushed hard before I got it. I’m not sure. So you think once speaker(s) are replaced, should be ok?
     
  8. Zooberwerx

    Zooberwerx Gold Supporting Member

    Dec 21, 2002
    Virginia Beach, VA
    I can't. Can't say exactly what happened but your speakers apparently didn't care for it.

    Not exactly how I would EQ any amp: volume at 25%, EQ bumped to the nth degree.

    Riis
     
    96tbird and Korladis like this.
  9. Chris1985

    Chris1985

    Sep 5, 2017
    What is HPF? And also add a compression pedal? I will also reevaluate my eq settings on my head. Again, I want the boom and thunder from the lows while having articulate midrange growl. So I guess I need to find a sweet spot to not make the lows sound thin instead of round and full. Think compression would do this?
     
  10. Kro

    Kro Supporting Member

    May 7, 2003
    New Jersey
    Hate to say it, but that does indeed sound a bit like a recipe for damaged speakers. 700RB in 5-string mode?
     
  11. Zooberwerx

    Zooberwerx Gold Supporting Member

    Dec 21, 2002
    Virginia Beach, VA
    High Pass Filter. I like compression irrespective of the situation. You're on the right track: normalize your EQ settings, A/B your 4/5 string voicings as @Kro suggested. Keep in mind that EQ is essentially band-specific volume(s). Erase boom and thunder from your lexicon...what you really want is a thick & rich bass response across the entire spectrum. May even want to check in with the other G&K users for additional tips & tricks. Let me add I owned and used a 2001 RBP preamp and it's more than capable of producing the desired results.

    Riis
     
    IngloriousOz, petrus61 and Chris1985 like this.
  12. basscooker

    basscooker Commercial User

    Apr 11, 2010
    Northern KY
    Cab fan, hobbyist
    This sounds like a nightmare for any speaker cab I can think of for bass. You're nearly a full octave below a standard 4 string, you've got the bass eq at 3:00, and you're using a single cab that is known to be very deep sounding with a standard tuned, basically flat signal.

    Now I'm not going to show up and half-heartedly scold you and run. I will make a few suggestions, and hopefully you will try them.

    First, tell your guitarists to get the hell out of your sonic space. Okay, this won't happen, but it's worth a try.

    Second, re-learn those songs in a more normal tuning, maybe a standard 5 tuning. I'll explain. The rumble you seek is eating up all of your power, but your speakers can't reproduce these lows with anywhere near the volume you are asking for. They aren't designed to. Besides once you start going below low B, human hearing basically can't really hear it anyway. And also, chances are your amp is high passed around the B fundamental as well.

    Third. Use a realistic and less boosted eq. It seems counter-intuitive, yes, but look up Fletcher-Munson. The louder you turn up a signal that is boosted heavily in the low end, the more out of control the low end will get. Your cab is already a low end beast. Let it do what it was designed to do.

    Fourth, lurk a bit, use search, read the stickies, use search, and ask more questions about how this stuff works in reality. It seems from what I had read when I started typing that you've listened to too many guitarist myth and common misconception about how bass gear works and low frequency is perceived.

    Good luck, and ya, sorry to say, you abused the crap out of that cab.
     
    96tbird, murphy, Socobass and 12 others like this.
  13. Chris1985

    Chris1985

    Sep 5, 2017
    Yeah. The button is pressed in. I’ll definitely try and adjust eq again when I get my cab back
     
    Spidey2112 likes this.
  14. Chris1985

    Chris1985

    Sep 5, 2017
    Thank you. I am also a guitarist switched to bass. Been playing fingerstlye for 2 years now and this is my 1st “real rig”. I play metal (probably obvious from tuning) that’s why I “know” maybe I don’t... haha) that bassists have used this low of tuning before with success. Listen to the bassist from Obscura. He now has a custom 7 string fretless. Amazing bassist. But his “fullness” is what I’m after while having the mids and clickity clack Steve Harris sound. (Btw- the presence feature on my GK head made all the difference in hearing the strings slap against the fretboard! Awesome!)
     
    EatS1stBassist likes this.
  15. Chris1985

    Chris1985

    Sep 5, 2017
    Thank you everyone for your replies. So I’m thinking starting at noon again with my eq and try not to boost. Maybe I’ll just try cutting back on everything to get the overall sound I want without boosting and of my heads eq...
     
    96tbird, TrevorR, pudgychef and 4 others like this.
  16. Spidey2112

    Spidey2112

    Aug 3, 2016
    Times a wastin'... if you can, start now! Good luck!
     
    murphy, SpyderX, mikewalker and 2 others like this.
  17. basscooker

    basscooker Commercial User

    Apr 11, 2010
    Northern KY
    Cab fan, hobbyist
    It happens. We hear a tone we like on a recording and chase it... Sometimes for years. The thing is, though, you are likely hearing a tone created with four, five, who knows how many different sources mixed together; not to mention tweaked all sexy in post. I'd bet the actual cab being mic'd (if there is one) on the recordings you hear sounds quite thin and "regular" compared to what you think his tone is.

    When you see this band live, I'd bet my last-beer-funds that his tone and super low oomph is coming nearly entirely from FOH magic and subs; his stage rig more "middy and less boomy".

    High pass filters (a circuit that lets the frequencies above a chosen spot in the spectrum "pass through", and attenuate frequencies below that spot) are usually used in bass amps to keep your speakers safe. A speaker reproduces (or tries to reproduce) whatever it is fed, even if it will kill itself doing so. HPFs help keep the frequencies you are trying to create from causing your speaker to kill itself.

    Try keeping the bass knob a bit more towards noon, and bump up low mid instead. Also boost high mid instead of high or presence. Just my suggestions, they might not work for you.
     
  18. Chris1985

    Chris1985

    Sep 5, 2017
    You’ve been very helpful. Thank you. So again, I’m not very hear savvy, is A high pass filter different or the same as compression? Is it, or does it come in a stomp box? First I’ve heard of HPF. Sorry for the ignorance
     
  19. Chris1985

    Chris1985

    Sep 5, 2017
    Thank you very much! Good info!
     
  20. Chris1985

    Chris1985

    Sep 5, 2017
    Haha!
     
    Spidey2112 likes this.
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