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The P Bass pickup is based on Bobby Vega's 60's P bass. Where did the J come from and how well does it match volume and tone wise ?

I may just keep using the WA as a preamp. The problem is that the power usage may be high as the power amp in the WA is still being powered. As for posting the WA off to a service centre, I suspect it will cost a lot of money for them to diagnose the problem to find out that I have to pay a...

Thanks for the reply. Would non Mesa service centres be able to get schematics to the WA ?

Interesting.. I have no idea what the B side is but thank you..

How much power is the amp using if no speaker load is present and can the fan then be disconnected due to noise ?

OK thanks Andy.. Looks like it is too much of a gamble.. She is destined for land fill..

I never said I wanted to DIY anything. I was just hoping for some thoughts on options before sending it somewhere. If parts are in short supply then this is something where I may end up with a bill for hundreds of dollars and be in the same situation I am in now. If the power amp cant be fixed...

OK.. Ta.. I am just trying to assess options without having to send it somewhere first. Postage to a service centre and back is about $100. Plus another $200 for them to look it and diagnose the problem. Then maybe $200 in parts and $200 in labour to fix it. It starts costing as much as the amp...

I know it might sound crazy to the class D hating mob, but I think this sounds better running the Walkabout preamp through the class D Crown amp. It is just as full but faster and tighter. Andy - Am I right in suspecting that the preamp cannot be run on its own as it is not just the gain but the...

I did patching a 1/4 cord between the send and return. I was just trying to guage what might be involved in fixing it. Would it still produce sound if a mosfet was damaged ? If this is several hundred dollars to repair it is not worth it. Is there a way of unplugging power to the power amp board...

I have an old silver faced Walkabout which I like so much I bought the WD800 to replace it. The other day I went to try the Walkabout again after months of non use. The speaker lead may have been dodgy and shorted the output. Not sure though. With a much better lead I tried it again and now the...

Does the Tonex One have enough output to drive a power amp (like a Crown XLS1002) ?

Stunning......

I know this is an old thread but listening to the video sounds like a room mode to me. When you excite a room mode you have a longer reverb time as a result. Hence why the note continues on. It is the note just bouncing off the walls. It may sound like it is coming from the cab but is not. I...

I think he was just copying what I had said in my 1st post. The point being that I need to adjust the input power in bassisttech down to 85w to match what I get in WinISD. So which one is right ?

150w is the WinISD modelling. The bassisttech (That fdeck generated on page 1) shows about 85w.

It sure does make it difficult. There is a huge delta between what bassisttech and WinISD are saying about power handling. I am wondering if it is worth the effort to build using this driver now. Nobody seems to have used it so there is no real world experience and if the modelling is not...

The modelling looks very similar to Winisd except for the power handling. Is Winisd over generous ?

Thank you everyone. I screwed up the volume calculations on the tubing and have been too ambitious with the materials. It seems 12mm with 20mm dowels in the consensus for pushing the boundaries. I will redesign using these. Has anybody used the Faital 12fe300 drivers and have any thoughts on...

It is stiff and I will make all pieces interconnect with each other. I guess my main thing is I am surprised by how much volume this kind of bracing systems takes up. If using 1/2 wooden dowel my calculations using 480cms of dowel take up over .45cft of area. In a cab of less than 2cft this is...

The plastic bracing is just like this pic (except with round ports):

@Snert Here is the WinIsd file that I have changed the extension from wpr to txt. @Redbangus I was looking at the tubing like a plastic dowel. It seems pretty rigid to me. I don't want to put holes in it but just wondered if by doing so I could reduce the volume. I was surprised by how much...

Not sure how to do this.. I tried and got this message - The uploaded file does not have an allowed extension. WPR is what it is.

I have 3 Faital 12fe300 drivers I want to build into a modular system of 112 cabs. I am trying to make them reasonably compact and lightweight. When I model in WinIsd it looks good with a cab internal volume of about 1.9cft and tuned to 52hz using PVC pipe ports. I get an honest 150 watts with...

Can this be run at below 4ohms ? Page 8 of ther manual makes mention of cab configurations based on impedance and mentions 2 ohms.. I would like to run 3 x 112 (8 ohms each).. So 2.67 Ohm ?

I know this is a zombie thread.. Has anyone tried a stack of 3 of the ex112's ? I have a Mesa WD800 that can do 2 ohms and like the idea of the form factor of these. Being able to have a totally modular system would be great. I wonder how 3 of these would compete with a top tier 212 by Berg for...

The website doesnt seem to have the sensitivity of the 27. Does anybody know it ? I wonder how this would play with a Faital PR400 15" cab. I would create a vertical stack with a 27 on top of the 15". THe PR400 has a sensitivity of 99db.

I am in the process of bulding 2 x 115 cabs based around the PR400 driver. I have put together a test box (only screwed at the moment). It is 2.8 CF tuned to 50hz. That all models well in WinISD and sounds good in testing. I am now considering the option of adding some high end to this test cab...

How does this driver work in a ported box and what size box is best ?

Did you ever install these PJ multi coils into a bass ?

Nice. Do you still have the origional preamp and pickups ?

OK.. Sorry about that..

I have an ACG Uber 5 string bass. Alan's pickups are wired so each pickup has 2 coils per string. They are wired in series and are essentialy one humcancelling pickup per string. Each of these 5 sets are summed electronically by a board on the back of the pickup and then they are sent to a very...

Question for Chris (Scubaduba). Your tube preamp DI sound sample thread is simply awesome. How well does this machine capture all the great DI's and preamps in that you have tried in that thread ?

I am not sure of the terminology. You can find various clips on youtube. Most seem to have someone hitting the string hard and getting lots of fret buzz which makes it hard to listen to IMO

I don't regret them doesn't fill me with confidence ;) This dude makes some nice looking filter preamps - Lusithand Devices

I will revive this thread as I think it is a good one. I have been fascinated by multi coils to the point that I have bought myself a ACG Uber Finn. It is a very nice bass and has me hooked on MC pickups. I now want to try them in a DIY fretless. I heard MPU's jazz bass ones earlier in this...