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Thread: Isolation Box for Bass Amp. Is it Possible ??????

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    Isolation Box for Bass Amp. Is it Possible ??????

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    So I recently built a guitar isolation box within my closet of my studio (spare bedroom). It works amazingly well. When I play/record all I can hear is the pick hitting the strings. My wife says she can't even hear it in other parts of the house.
    I would love to make something similar for a small bass amp (1x12 cab), but is this even possible? I have searched as much as I can on this forum as well as google and everyone talks about iso boxes for guitars, but not bass amps.

    Is it even possible to build an effective iso box for a bass amp? Or is there just no getting rid of that low end rumble/vibration that feels like an earthquake. I don't need a lot of volume, just enough to record a decent tone.
    I suppose I can go buy an cheap 1x12 bass combo on craigslist for $100 and put it in my guitar iso box and see what happens, but I suspect there will still be a lot of vibration that will upset the neighbours (I live in a townhouse with 1 shared wall).

    I was hoping to solicit some insight from follow forum members before I go out and spend any money.

    I apprentice any insights.

    Regards,
    Ray

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    Honestly, I find it a lot easier to use an Ampeg SCR-DI.

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    Quote Originally Posted by bouldersoundguy View Post
    Honestly, I find it a lot easier to use an Ampeg SCR-DI.
    Yeah, I agree. If I do mic a bass rig it is usually to get some tone from the mids out of the speakers. Not really the low end which is much better direct recorded IMO.

    I would think bass guitar would not be as ideal recorded in an iso box. Bet hey, worth a try.
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    Quote Originally Posted by jimmys69 View Post
    Yeah, I agree. If I do mic a bass rig it is usually to get some tone from the mids out of the speakers. Not really the low end which is much better direct recorded IMO.
    I've been recording bass guitar DI for like the last 20 years or more...I don't remember the last time I used a bass amp.

    That said...I recently scored a late '60s Ampeg SB-12 Portaflex in great condition...so I'm going to see how well it records, but just playing through it, it sounds great. It can go from a clean sound to a real grind. Plus, it also has a guitar input, though I don't know what's exactly different between them in the circuit, I tried them both with guitar and bass, and they both work well with either, just a different sound with each. With guitar you can get a nice growl out of it.

    AFA the bass iso box...it may work the same as for guitar, but if you're going to play at lower levels in the box, then why bother...just go DI...bot it won't hurt to give it a try if you don't mind it not working out as you expected.

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    Why stick a whole amp in a box when all you need is a speaker in a box? It cant sound the same as being in a room due to the size of low frequency waveforms but if you are just going for some amp "tone" a decent instrument speaker in a cab in a box will get you tones that are different from DI, and it may or may not be useful. Plug bass amp speaker out into your guitar box and see what it sounds like.
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    Thanks for the input. The reason I'm on the "mic a bass cab" bandwagon is because like so many others, I too have been recording DI/amp sim for years and years for bass. Recently I re-mixed an old album I had recorded from 20 years ago and I was blown away by the sound/tone of the bass guitar. Mind you it was a SVT4Pro through a SVT810 with a Jazz bass with a D112. Doesn't get better than that IMO. I feel I get great tones through my DI/amp sim setup, but maybe I can gain something by recording a real cab moving some real air.
    Maybe it's worth picking up a cheap combo somewhere and experiment. I would use my existing amp, but it's a 1x15 combo and wouldn't fit in my iso closet.

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    The Ampeg SCR-DI is more than a DI.

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    IF you built the iso-box out of brick AND made it airtight AND isolated it on compliant mounts, maybe you could run a decent level and not annoy peeps but I suspect it would sound like ***t.

    There can be few sounds so annoying as the repeated 'whump,whump' of someone trying to nail a bass part!

    DI forever.

    Dave.

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    I would isolate it from the floor, and strap pillows/cushions to the sides and front. A guitar box isn’t going to block the bass frequencies as well... Just a thought...

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    I love micing bass cabs, I also DI at the same time. The amp I usually mic for myself is a 25 watt 1 x 10" crate amp, sounds great and I am running it quite soft in volume. Would not even need isolation.

    However due to the nature of the recording the last album I played on was tracked through a valve pre only. And this is my secret pre of recording bass, and you can pick them up cheap. A TL Audio Fatman 1 (also branded as a purple faced HHB Fatman). I own 2 of these, also are grat when used as a compressor on acoustic guitar and electric guitar.

    Alan

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