NEW MFW-15 amps (May 2010) *pics* - Page 52

Correct

using any outboard amp will make noise although you wont have any filter or eq or LIMITING!!! This is the main reason Mark and I are working on a drop in amp, that way it will be DROP IN, not a diy. yes you can get 2 of the 3 various ways ( and you need to know how to do it) but you cant get limiting other than using restraint on the gain/volume controler

How about a rack amp for all the people not wanting a drop in amp? Say a 2 channel 1? thanks Kevin!

It's called a Dayton SA1000 w eq. Lol

Yea but who's going to want to buy 1 of those at 400 a pop, and feed their MFW 950 WATTS? Are you wanting to start more fires and lightning storms in your home... P-E........?

And in stock form launch the cone across the room

Kevin.......?

which would be cool if you new the proper eq to apply for use with the sub..
Of course, SOME of use are getting tired of waiting for the "drop in" replacement....

I am going out on a limb here but I will bet there are far more people who would appreciate a drop in rather than an external. Besides, between this one and the turbo, how many more amps should the guy produce for this dead outdated never to be seen again sub?

That's what doesn't make any sense though. Kevin has said many many times, that it would be very difficult to get a drop in replacement amp that would fit just right into the MFW-15. So low and behold, shockingly enough, AV123 goes out of business, Kevin announces the possibility of him coming out with a replacement amp that will fit into that awkwardly shaped hole. Here we are, almost 6 months later, and we don't seem to be the slightest bit closer to having this amp that Kevin said he would have. We have amp after amp dying, people wanting to buy a replacement amp, but unable to unless they either buy a v3 from murrel, or do the cap fix. And even after doing those 2 options, there's still the looming possibility that neither of those options will be a permanent fix.

Wouldn't it have been easier to just provide a rack amp as THE replacement amp??????? I know asking Kevin for updates is frowned upon, why that is, I'll never understand, but seriously, will it be a year or more till we start seeing all of this stuff he's supposedly been working on?

Not having anywhere near the knowledge about subs that Kevin does, I would hazard a guess that customizing a rack amp is no small task either. We also have to realize that the market for this is super super small. I mean, would you think Kevin will sell even a hundred of these? He does need to pay bills and eat too! Hell yeah, I wish it were out now, but some things you just have to wait on!
Also, have we seen anyone (except PE) who had the "cap fix" and then had their amp die yet? I don't think so, so that is good news on that front! Hell, even if the fix only lasts a year, it is $4 well spent!
Of course some people think the amp in the MFW is a ticking time bomb (yes, you...PE) but I don't fall into that category.

Well, we'll see what Kevin has to say...

He's being his usual silent self on these sorts of things though so I'm pretty sure it's safe to say, that when we do finally get that response, it will be unsurprisingly lacking any real info in it.

Probably the usual "The only reason I don't give out updates or info, is because I have nothing new to report on or to say."

Guys,

Yes the cap fix may just be temporary But as far as the V3 amp goes it is no where even close to being related to the previous amps. It works and it will be dependable. It was not designed buy the same people that designed the V1 and V2 amps. I wish that I could go into more detail about the development of the V3 but at this time I just can not. I am not one to push the V3 on anyone in fact I always offer the cap fix as a solution to the hum. I have shipped plenty of V3 amps and not one complaint in fact everyone who has purchased one has been very pleased. QSC has a very nice large shop with plenty of QC in place. I know because I was the SMT production manager there ten plus years ago. They do work for Ayre acoustics and PS Audio just to name a couple. Each V3 amp is burnt in and completely tested before I receive them.

As far as Kevin's drop in amp goes.......I am sure that he wishes he had one as much or more than anyone of you. Hell I am sure that he would love to have the amp ready and be putting money in his pocket! If some of Kevin's current products are any indication of the quality of amp it will be then the wait should be worth it!

I know its frustrating but hammering Kevin does not get the amp here any sooner. Be glad that people are out here trying to find solutions for you. This has not been an easy thing to deal with. The shear amount of e-mails and PMs I have received over the past couple of months has been overwhelming.

Murrel

Murrel,
You have been the saving grace of the mfw15 as far as I (and quite a few others) are concerned. You posted about the cap fix and easy to use directions to do so for absolutely no personal gain what so ever. Had you simply kept your mouth shut you would have probably sold a couple dozen more v3 amps! The fact that you did this speaks VOLUMES of your character.
A lot of MFW15 owners owe you a big thanks! (myself included)

Ok Since I LOVE beating my head against a wall, and pounding nails under my finger tips

If I could come up with Something cheap like you guys want, I WOULD.

So far everything I have found or tried to make work has been cost prohibitive

If you have duals or quads I might have a solution for that(outboard), but again in single use its just going to be to much money.

There are a few more things Mark and I are looking at(and waiting for info on) but as I wished all of you would understand, this project is not the HIGHEST on the list for either of us. I actually have a day job that takes up most of my time and pays the bills not this.

Yup, I'd be more concerned with a high pass than the "EQ" and be very disiplined with the gain...... A BFD is cheap and should flatten it out for ya. Take some measurements A/B and it'll show how much actual "EQ" is the stock amps.

streamerlover,

Thank you!

I truly believe that people should have a choice. I could no way feel right about selling amps when there is a solution that is so cost friendly and quite easy to do. Quite a few have decided to just go with a new amp and as they say be worry free. And honestly I have meet some great people through this whole ordeal! Really a great bunch in the audio community out there.

Murrel

You could use a Reckhorn B-1 or B-2 for your high pass filter.

www.reckhorn.com

Well, just got done removing the amp from the plate and I have a new circle of hell reserved for the person who used the glue! I am going to track down the individual (s) who used it and see if they own stock in the glue company! That has to be the only explanation...
Soldering looks pretty straight forward so that is on tap for tonight..

Let me know if I can help. LOL

No, no. The driver is GOOD. I did the push test when I bought it. This thing simply pounds, I really do like it. I am a drummer, long time 2 channel audiophile and installed 12V audio for 19 years (I only do family installs now, career takes all my time), so I am not at all new to subs.

The raspy, white noise sound just happens upon turn on, and goes away after a few seconds. It is most definitely electronic in nature, as there is no signal applied at the time.

The box and driver are decent performers, I wish we all had a solid amp option. The V3 may to fit the bill, but there seems to have been some output problems with a few of those too, and they are limited in quantity.

You are correct, the V1, V2, and probably (but not sure) the V3 are EQ'ed for the box and driver.

Reading further into the thread, I see pressure being put on Kevin. Guys, he has come up with solutions with a few other AV123 subs, right? The guy is going way out of his way to help those of us that need it, and has for a while now. At ease, gentlemen!

Murrel has also been pretty awesome through this, with the cap fix, which must take a huge portion of his free time, and nothing to show for it but satisfaction helping the community, and then the more solid V3 offerings.

Murrel, question. Does the V3 have the specific EQ needed for the MFW-15 driver/enclosure?

Yep

It was made for the mfw and there are no problems with output. It has a much more linear gain structure. Much more control over the driver. I attempted to destroy one in my shop (pretty easy to damage a driver with the V1 or V2) just could not do it limiter works pretty nicely and the amp never heated up.



Murrel

When the turbos start moving out I hope someone sells me their version 3 amp for a decent price.

If I buy a Turbo, I'll have a V1, V2 and two OEM 15" drivers for sale. But first I'm saving for the CS 18.T Duo.

It would be fun to compare a vented 15 to dual sealed 18's. It wouldn't be fun moving these suckers in and out of position, though.

Any tips you or anyone else can provide for amp removal and the "dreaded" glue? I'll be having to remove one of my V2 amps for some cap replacement I'm hoping not to screw anything else up in the process - Thanks!

Take your time and just use a exacto knife on the glue. Its really not all that bad it is just a pain.

If you need help just email me Ill be glad to help
Murrel
simplysound@msn.com

I appreciate the information Murrel. I swapped out those caps on my V2 and so far it eliminated the popping I was experiencing. Have you typically found just those 4 caps to be defective? Thanks.

Yes, that seems to be the number one problem with the MFW amps. I am glad it worked for you!

Have a good day
Murrel

I have some interesting pics I will show of some of the internals on a couple of my MFW15's. Got to get them off the camera tonight though. And on the bright side, both my Version 2's now have new caps are a pretty much damn near silent! I can hear a very very faint transformer hum from one of them if I put my ear right next to the sub, but WOW, what a difference the cap replacement makes!

Cool! Glad you you got it done and they are silent again!

Murrel