Bass Amp Beginner

Hello i want to built a simple bass amp, and i want some help...

I want the simplest one i could built but be about 200-400 watt....

i suppose i need a speaker and a preamp?

What do you suggest?

Quite a few big name bass preamps are based on Fender's Dual Showman.

Speaker depends on taste.... ported is my taste.

so what do i need?

I need to build a head and then buy a speaker?

ted weber has an SVT amp kit in the works. will be about 300 watts with 6550's or kt88's. are you talking solid state or tube? unless you play outside a lot or in large buildings, 100 watts is plenty from a tube amp. solid state is a different story....other option is to buy a preamp, power amp and rack....

you need at the least a preamp/power amp or complete head, then at least a 1x15 cabinet. i'm not trying to discourage you, but building an amp isn't exactly easy or cheap in most cases.

i don't know what do you suggest?

If I was building a bass amp for myself (considering I already run a 400 watt all tube rig... with an 8x KT88 power section)... I'd be looking at a Dual Showman kit and ported 2x12" cab loaded with a pair of EVM-12L

Keep in mind, a 200 to 400 watt tube bass head is an EXTREMELY advanced project. My 400 watt tube head replaced an 1100 watt solid state power amp in my gig rig.... and it weighs 100lbs

If I was building a bass amp for myself (considering I already run a 400 watt all tube rig... with an 8x KT88 power section)... I'd be looking at a Dual Showman kit and ported 2x12" cab loaded with a pair of EVM-12L Keep in mind, a 200 to 400 watt tube bass head is an EXTREMELY advanced project. My 400 watt tube head replaced an 1100 watt solid state power amp in my gig rig.... and it weighs 100lbs

if i wanted something about 60 would it be much easier?

the 6s100 looks good, 100 watts, full tone stack. could be tuned to bass frequencies with help form some of the people on his boards

could be done for your first build. it's not cheaper than going out and buying an amp usually.

https://taweber.powweb.com/store/kits.htm

throw in an avatar 2x12, and get some decent speakers (EV's). good to go.

james, that peavey must cost a ton to retube

hmmm is it always the same price as to buy a new one... couldnt i find something much cheaper?

could something like this http://store.qkits.com/moreinfo.cfm/K4005B

work as an amp combined with a speaker?

I bought it for a steal without any glass.... tubes + bench fees were just over $300. I don't expect to have to swap the power tubes for AT LEAST a decade... and at that point it's 4 pair, so swapping a pair is only ~$50 each plus bench fees (or not as I should be up to speed on biasing and such by then.

Weber's dual KT88 kit looks nice too

iassael: That 200 watt @ 8 ohm mono SS power section looks cool. Not terribly loud, but enough to jam with.

I bet a ROG Flipster in front of it would make for a wicked little amp

http://www.olcircuits.com/olc_flipster.html there are some bass -> flipster -> soundcard clips I recorded on that page

so you think its a good deal to start with as it is much cheaper...

If you are looking for something cheap look for a used amp. If you want to build an amp it isn't going to save you money. You cannot buy parts for anywhere near as cheap as a large manufacturer that buys thousand of those parts at a time.

Max

Note also that the kit in question doesn't appear to come with a power supply. The power supply kit that it links to is pretty much filter caps and fuses only. No transformer (add $70 for a 225VA toroidal). And for $120 I would think that the amp kit probably doesn't come with a case, or heatsinks either - although I stand to be corrected there.

depending on the application, or ohm load, it has different requirements, and is only calling for 40Vdc max. you would need a transformer that could take your 120Vac down to the 35-40Vdc. that requires a rectifier and capacitor network to smooth out the halfwave rectified signal, and that may require math and such, plus have could have some stability issues. and yes, it is cheaper most of time buying one already made. but you said you were interested in making one yourself. for a gigging bass amp, you will need around 400 watts solid state, or 100 watts from a tube amp to keep up.