Originally Posted by ksteidle
This was sent to me by our Engineer today. Please call or email if you have any questions.Kyle,
I have noticed on avs forum that there is a concern regarding the latest generation of amplifiers now shipping for the MFW-15.
This new amplifier is a further evolution from the design put into place some months back. This design is a more integrated solution. We developed this product from scratch rather than having to adapt a replacement board to an existing design as was done with the previous amplifiers. This has allowed us to offer both a more powerful and a more reliable product.
If this amplifier has more power, I'm both stronger and faster than I was when I was 21 (25 years ago). In both cases I can prove this is not true.
This new generation of amplifier board is more powerful than the previous versions. The previous version, using the replacement amp board, produced approximately 400 watts at the rated distortion. This new amp produces approximately 500 watts at the same rated distortion (1%). The increased power can be attributed primarily to a larger mains transformer. The new transformer is a Toroid type which, besides being more efficient, produces less stray magnetic field than the older EI Core type.
Kyle, you're a good guy and I like you, but this engineer, since I don't know him I can say sorry Charlie, just cause you say it's so, don't make it so. My Dayton powered UFW-10 can easily keep up in output with my "new and improved v3 powered MFW". While I agree the amplifier section itself MAY BE more powerful, if the amplifier isn't getting the input (our maybe what I should say is preamp output voltage?) voltage to produce this power it could be a 10,000 watt amplifier section and it ain't going to do squat.
The new pre-amp board is highly integrated and allows for flexibility in tailoring the equalization and features so it can be used in a family of products without redesign. The circuit boards do not look similar to the older design due to the exclusive use of surface mount components and sophisticated circuit layout. In addition to circuit design, consideration was also given to ease of manufacturing. This allows the design to be produced on an automated assembly process which produces higher quality, more reliable products.
Agreed to the point I could not see anything similar between the two and the circuits look better. While it may be better quality, I seriously doubt it is giving the amplifier the juice it needs to be more powerful or even equating the v2 version of the Chinese amp.
Hey guys, I'm a build it in America kind of guy! I LOVE that this is being produced and built in the USA. BUT, what I don't like, is being told this one is MORE powerful than the previous design and then getting the amplifier, installing it and then not getting anywhere NEAR the output of the v2 amp.
Remember, MLS made HUGE claims about the v2 amp, how it was PERFECTION. Well, in output it clearly delivered on the goods, reliability, well that's why we're here right, trying to get to the reliable part.
I know that TADG has submitted this board for Agency Approvals that include CE, FCC and UL, but we will not screen the metal work to indicate this until all approvals are in house. Later units will reflect this, including the new av123 logotype.
Sigh, now let me get this right, I now have an amplifier that has had ZERO outside testing by any group or agency? I've heard great things about the amplifier company so I don't hold them responsible for this, they are building what they were told to build, I have no doubt about this. Once again the blame falls on the owner of AV123, TADG, WKRP, WLUP or whatever the hell he's calling himself these days. I thought TADG was many people, so which of the people that share this new ID are the one who sent this new amp for approvals and then released the amplifier to the public prior to at minimum FCC approval?? I would think anything being sold in the USA has to have FCC approval? Maybe I'm wrong.
I AM ON AMP NUMBER 7 counting this one, my wife considers these subs a running joke. Everytime she sees another white square box she calls me at work to make fun of them. So, thanks for the long brown box this time, I was saved from having to answer more questions about why I bother to continue to do any buisiness with AV123.
The new amp is constructed in Colorado and will appear in many future products. We like the increase in power, but we also like the simple and very straightforward final execution of the design. Labor costs being what they are here, rather than The PRC, we feel that the design goals have been met or exceeded in every category.
I'm glad he is happy, I'm VERY disspointed, tell TADG, MLS the engineer that this amplifier DOES NOT have near the impact/output of the v2 design and I can prove it BUT I SHOULDN'T HAVE TO! You guys should know this!
I'm just a guy who likes HT, I wanted a reliable powerful subwoofer and bought the MFW because people (not just Craigsub) on MANY forums recommended it. When I put them in my HT I was blown over!
If I had received dual MFW's with the new v3 amplifier you would be getting them back, pure and simple. I can't begin to describe how disspointed I am. To have an engineer make claims that every single person who has the new versio amp can disprove, is appaling but then I don't know what information he was givin about the old amps.
I posted how I tested, if my testing was invalid IN ANYWAY please post it and explain to me where I was wrong and HOW AM I SUPPOSED TO GET THIS IMPROVED OUTPUT WHEN RUNNING THE AMP GAIN AT 100% AND THE AVR 10db HOT RESULTED IN 11DB LESS OUTPUT BUT HUGE DISTORTION?
In normal operation it was barely noticable if at all without cranking the gain to 100% and then upping the gain in the AVR. If these new amps are more powerful, explain to me how to properly set them up. Heck, maybe it's just me and I missed something?