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Hi, Regarding the frequency plot that was posted of the plate amp. That response curve is for what is the #300-796 amplifier, which is the one with the bass boost. Back in the day, we only sold one version of the amplifier, and it had bass boost on it, and its part number was #300-794...

Hi Darren, Darren here... The 500 watts and 1000 watts are RMS ratings. Meaning, the amps will deliver their 500 or 1000 watts RMS wihtout any clipping. The rating is not based on the "peak" of the sine waves, but the RMS values. However, this is not to say that you could continuously...

Hello Everyone, Yes, Parts Express will be carrying the 6.5" subwoofer. It has been a long wait for us too, but, it is due to arrive shortly, probably in the next week or two. Pricing will be a little higher than initially thought, at about $41 per unit. I'll drop by here when they get in...

Hi Guys, Since the initial discussions of the issue with the auto-turnon, we have devised a new "fix" for this. It is simply adjusting the value of one resistor, and I have received nothing but success stories of the mod's effectiveness. Just drop me an email at [email protected], or...

I find it interesting that nobody has mentioned the DISTORTION aspect of the JBL vs. Tempest. The Tempest has a standard motor with no shorting rings or anything for distortion reduction. The JBL has several copper shorting rings on it and a specially designed t-shaped pole piece to minimize...

Regarding the accuracy of the jig, I've seen a couple things that can decrease the precision of your cuts. 1. The actual jig is not installed perfectly centered onto your router base. This can cause some holes to be too big, others to be too small, and others to be just right. The most recent...

Hi, Its a very interesting driver, and has a lot of design features to make it one of the lowest-distortion drivers out there. Think of it like a 15" version of the Peerless XLS driver. From my analysis, in a home environment it would be easiest to implement in an EBS type ported...

Thanks for adding your comments Jim! With regards to Jack's question: In general, I don't think it makes sense for us to modify all of the amps here in house. The main reason is that for most people, the auto-on will work fine as it is. If its going to work, most would probably rather...

Parts Express will be carrying the 6-1/2" driver, it will probably be arriving in the beginning of March or so. Pricing is not set yet, but I will say it definitely will be in the "reasonable" range. See ya! Darren

Hi, Oops, I did get the email that you sent already, sorry about that. I guess I hadn't checked my hotmail this morning. Also, I forgot to respond to the LED issue. I did not actually write the manual for the amp or the sub system, but I should have caught that discrepancy before it was...

Well, I was in no way trying to insinuate that you said the amplifier was defective. I was just trying to point out to other readers of the forum that the amplifier isn't "broken" and in need of "fixing". For most users, there won't be an issue in the first place, it just depends on your system...

Hello Again, Also, let me point out that this turn-on "issue" is not a defect in the manufacture of the amplifier. It is something that may come up on some systems depending on setup and the user's personal preference of settings. Out of the hundreds of the amplifiers that we have recently...

Hey Guys, I can assure you that we (Parts Express) is looking into the "auto-on" issue. It takes some time to do research and get all of the information on hand to be able to hand out correct advise. There is one simple method to "fix" the auto-turn on issue. There are provisions on the...

Hi Ben, They're not quite ready yet, but I'm working on a new Dayton 8" shielded subwoofer driver. Xmax will be about 6 mm, and should do a vented F3 of just about 30 Hz in around 1.2-1.5 cu. ft. per driver. Cost will be pretty darn good. But, unfortunately, it'll likely be a month and a...

Hi, Yes, the crossover used is most definitely of the utmost influence on the ending sound. Most of the "metallic" sound is due to a couple major breakup modes that is pretty much inherent in that material. With a proper crossover, you can eliminate most of these resonances, and make them...

Hi ThomasW, Oh, you're right, sorry about that. I forgot that all cone materials have the same characteristics and sound the same. I'll have to remind the driver manufacturers and the finished speaker companies that they should just stick to one material and save all of their efforts. See...

Hi, Regarding the MN series versus the F series... I have used several of the MN's, and have been pleasantly suprised. The M5N is a nice little driver that produces pretty good bass in a medium sized vented enclosure. It is very strong in the midbass and doesn't have some of the frequency...

While we are on the subject, there will also be a speaker-building get together in the Dayton Ohio area on Nov. 2nd. It will be a fun time, featuring many speakers built by hobbyists like yourself from throughout the midwest. There will be a good crowd that should have a diverse collection...