• TalkBass has been independent since 1998. Add your voice.
    Create a free account to reply to discussions, view embedded media, and browse with fewer display ads.
    Join free Log in
    Want zero display ads or expanded classifieds tools? Compare plans.

Acoustic 408 measurements? Copy?

O

os101king

Mar 9, 2010
10
0
Toms River, NJ
#1
Ok, I had found a thread with some specs in it but no matter how long I search I can't find it again!!!! I know MONOLITH is essentially out, I would have bought one of their copies if not for their rep at this point so I'm searching for any thread or member who might be able to help me put one of these together. Original specs are important but not a must, I'm thinking of Delta Lite II's for the cabinet since I'm not an avid bodybuilder and I'm also not rich. So for $170 and weighing 6 lbs each I think they'd work. Anyway, I'm babbling at this point. Can someone either point me in the right direction or give me some info?

Grassy-Ass.
 
#2
If you can't put the right speakers in, then not really much point in making the weird format cab to go with them. Especially since it is fundamentally a really heavy build, and bit unnecessary since two of the deltalites can probably move more air than the 4 original speakers. If its just the style you are after a redesign to look like it but be lighter and work with available speakers is probably the way to go.
 
#3
Okay, I remember the cabs. They are big and loud with tons of bottom. Also a hernia pig. With modern drivers you can get a 2-15 cab that will weigh in at easily 100 less pounds and blow it off the stage. Have you heard a 408 live and in person? No question as to visual cool factor. Big questions as to living with one.
 
#5
I have a 408. it might take me a while, but I should be able to get some measurements off it eventually. It is not the heaviest piece of equipment I own, and with wheels on it, I don't think it is particularly difficult to move, load, or get on stage and off stage. I don't have any plans to replace it with anything more modern.
 
#6
Gaolee said:
I have a 408. it might take me a while, but I should be able to get some measurements off it eventually. It is not the heaviest piece of equipment I own, and with wheels on it, I don't think it is particularly difficult to move, load, or get on stage and off stage. I don't have any plans to replace it with anything more modern.
Click to expand...

Need Pics!!!! :hyper:
 
#8
From the thread linked to previously :

The outside dimensions of a 408 cabinet are: 50" H X 26 1/2" W X 20" D
Click to expand...

DSC02762.jpg
 
#9
As a unabashed noob, I forgot to "subscribe" so I didn't see any of this.

*facepalm*

So the responses have lead me to a couple conclusions. First off, I don't really need to copy the 408. More than that, I think copying the 408 is a mistake because I definitely DO want to run 4 15"'s but the deltalite's will push so much more air than the early speakers as to nullify the design of the 408. So I'm pushing into new (new to ME) territory here. Any suggestions? Should I start a new thread?

Here's what I want, really. 4 15's. A cabinet height under 54". A slant-back handle cabinet with wheels like an ampeg and a width under 30". Depth is unimportant. I guess I have some mechanical drawing to do, huh?
 
#10
DaZombieWoof said:
Okay, I remember the cabs. They are big and loud with tons of bottom. Also a hernia pig. With modern drivers you can get a 2-15 cab that will weigh in at easily 100 less pounds and blow it off the stage. Have you heard a 408 live and in person? No question as to visual cool factor. Big questions as to living with one.
Click to expand...

ive got two of them loaded with Legend CB15s. trust me, nobody is blowing away a 1200 watt 415 cab despite what some sine graph shows you.

to the OP, id just find an old one and respeaker it with better drivers. the originals were 75 watts a piece for a total of 300 watts at 2ohms. mine are loaded with 300 watt drivers for a 1200 watt total, but theyre wired for 8 ohms as i run both of them with my SVT at 4ohms. the CB15s were the same speakers wade used for his reissues before he started stealing everyones money and being a nut.
 
#14
beebassdude said:
as for pics, heres them in a backline, and them standing alone.

View attachment 2103762

View attachment 2103763
Click to expand...
Amazing rig, I was thinking of buying an acoustic 408 and recone it, wire it at 4 ohms, but I hope it will not ruin the acoustic of the cab. The reason I want 4 is that I need to be able to use it also with my Sunn2000s, and the lowest it can go is 4 ohms. The Svt VR or the vintage V4B can go 2 ohms, but I also love the Sunn 2000S, o it could be wired with the switch to use it like 2ohm full stack 4x15, 8 ohm full stack 4x15, 4 ohm 2x15, plus 2x15, basically like two 2x15 at 4 ohms each, so i could run two heads at 4 ohm in each 2x15, it is nice to dream.
 
Last edited:
#15
Sunnampeg said:
Amazing rig, I was thinking of buying an acoustic 408 and recone it, wire it at 4 ohms, but I hope it will not ruin the acoustic of the cab. The reason I want 4 is that I need to be able to use it also with my Sunn2000s, and the lowest it can go is 4 ohms. The Svt VR or the vintage V4B can go 2 ohms, but I also love the Sunn 2000S, o it could be wired with the switch to use it like 2ohm full stack 4x15, 8 ohm full stack 4x15, 4 ohm 2x15, plus 2x15, basically like two 2x15 at 4 ohms each, so i could run two heads at 4 ohm in each 2x15, it is nice to dream.
Click to expand...

zombie thread! i still use these (not as much as these days since covid) but when my band plays again theyll both be front and center. I respeakered them again with 3015s so theyre way lighter now and these are tighter than the legends i had. but as far as low end you can beat them. I got rid of my tube heads but ive run all sorts of heads with these and they all crank (multiple SVTS, ORMAT 200, Hiwatt DR405, and multiple acoustic SS heads as well as a berg HP Forte). mine are set to run at 2 ohms right now like normal but for awhile i had them at 8 ohms each as i was running them together with one head at a time at 4ohms.

dont hold yourself back based on wiring, you can figure it out and make it work. these 408 cabs are monsters. no theyre not modern. yes they weigh a lot. yes theyre hard to move around. get past that and they do sound unreal, and they throw bass like no other cab ive played. so if youre doing the doom thing and want to crush souls, these are your best bet haha!
 
  • Like
Reactions: Sunnampeg
#16
understand my band plays a midway between stoner grunge/prog influenced, so we do alternate E/Eflat standard tuning to lower D standard tuning Csharp standard tuning so I would surely benefit from a cab like this, but low frequency because of their fisical longer nature are easy to mess up in a cabinet so, this is why i m insecure about it, so in your experience you find the 408 works perfectly fine with legend CB15 300w each, and also with the 3015s 450w, i see all the speakers you ve used are 8 ohms, i was wondering about the beta15A and also the alpha15A, also i m very intrigued by the USA handmade Tad Wber speaker they have bass series speakers 175w rms in vintage style JBL, and also JBL E130 or 140 (replicas), that are 175w same materialof the originals with h dust cup aluminum dustcup at your choice and you can choose the ohms of the speakers from 2 to 32ohms, also you said that you had the 408 with CB15s wired at 8 ohm How you do it if every speaker is 8 ohms?
 
#19
beebassdude said:
No experience with those other brands so cant say.

Been a long time but i think for the 4 8ohm speakers, its each pair in parallel, then wire the pairs in series. But its been years since I did all that haha
Click to expand...
Probably I should go for the JBL E140 used. I've found 4 of them, if I grab it now, I will use it as soon as I get one. Here in the UK, there is an unusual Acoustic collector, and once in a while, he sells one of the bad-looking ones. still do not understand if the JBL E 140 is 200W RMS continuous or 400w rms continuous..
 

Latest posts

Top Bottom
Back