sundownz

I am phasing in reduced bass boost on the amps that will retain it at all in the near future.

Nah I have the big motor I'm testing that I posted, that may or may not come into being - but I am testing some ideas for cooling in it. Have a few other methods I'm testing too, but no sneak peaks!

I think you'll be interested to see some of the things I'm working on

So... around the end of the year the SAX-100.4 will be improved yet again - we are always working to improve here at Sundown Audio! The SAX-100.4 is receiving it's fourth revision since it's release. A little SAX-100.4 history: SAX-100.4 -- Original model SAX-100.4B -- Updated crossover ranges SAX-100.4C -- Upgraded from 50-amp to 70-amp power supply transistors SAX-100.4D -- This is the topic of this thread The following functionality will be had with the crossovers: ALL CHANNELS: Subsonic @ 10 Hz - 500 Hz HPF @ 50 Hz - 500 Hz w/ x10 switch (becoming 24dB slope) LPF @ 50 Hz - 500 Hz w/ x10 button (selectable 12dB / 24dB) So, there will be almost no limits on the crossovers... all four channels are fully adjustable from 50 - 5000 Hz on LPF and HPF as all four crossover banks will have x10 capability. The slopes on the HPF are fixed at 24dB and the LPF will be adjustable from 12dB to 24dB. Unfortunately, there isn't enough room on the end panel to implement 12dB / 24dB switches for the HPF as well - but, most customers that wanted to see new functionality simply asked me for 24dB slopes - I just took it a step further with the LPF since I removed the bass boost feature to make room on the end panel there was one more slot! So, what will you be able to do with the new model that you couldn't do before ? 1) You can bridge the amp and actively band-pass a midrange / midbass to play above 500 Hz. Since the x10 is on HPF on one set of channels and LPF on the other set currently you could only band-pass up to the 500 Hz limit of the set that didn't have the x10 switch. This will free customers up to put large amounts of power into a high powered midrange driver - eg: Morel, Dynaudio, etc. I will be using this functionality personally 2) You can cross-over tweeters much lower with the 24 dB slopes. I have had several requests to implement this from people wanting to use planar tweeters as well, as these require steeper slopes. 3) You can experiment with overlap with the selectable LPF slopes. 4) Most importantly for reliability and consistency... the small sub-cards that hold the crossovers will be re-tooled as double sided boards. All of these changes will result in a bit longer amp to fit the new crossover boards (about 1.5" longer), but will be worth it for the SQ enthusiasts who will appreciate this type of functionality. ----- I know I said it once, but I know it'll be asked anyway, so I'll say it again This will not be ready until around years end. It involves new toolings for the sub-cards and the end panel so it takes a bit of time.

At 1 ohm you probably would not blow a 250-amp fuse on music. I wouldn't use a 350 as that wouldn't adequately protect the power wire.

Great, glad to see the alternator go on there =) Be sure to adjust the amp gain accordingly to the line driver - what unit are you using as a driver ?

You won't gain a whole lot going to the 1000D, a little, but not alot - and the 1000D is powerful enough that you could blow the speakers without a proper gain setting.

John, You can use a combination of the two if you like for a steeper slope.

A 100.2 will do just fine.

Should be nice

One quick note - I believe Oran was using 4x 1500Ds, actually.

Great scores as always guys! Congrats!

http://www.sundownaudio.com/dealers.html Full dealer listing. Since you don't have a local dealer you can choose and online dealer and order from there.

Indeed, you simply have the RCAs plugged in wrong for the balance and fader issue.

Welcome to the forum

Congrats

Again... they will all be custom. If you don't get a concrete hard spider you could still do very well on 1500-watts - say, if you used the same spider pack as the stock Nightshade. With harder spiders you can use and will need more power for better results.

Thanks for the article Chris

It will not become bridgeable to 2 ohms - that would require an entirely different design. It will simply be slightly more powerful than now and receive upgraded crossovers. Probably in ~3-4 months or so.

How about a round about then? More than the Nightshades and less than a DD 99Z It'll be lighter production too... I'll get the back and top plates beveled to remove the parts that aren't magnetically active anyway.

This shipping weight is listed as 92.57 pounds... so my software is probably pretty darn close. Now... to find someone who can magnetize it for me in the states.

The internal fusing is 160-amps per amp, so you can match that for 2 ohm strapped (1 ohm per amp).

Congrats on the score!

Cool Get those batteries chargin!

You could also try putting a resistor in line with the fan to slow it down a bit.