Digger8 Sub - diggity dig it all the way to 20Hz

[upsman]

Re: Digger8 Sub - diggity dig it all the way to 20Hz

Benji let you know how it works out....just ordered one:

Hi Robert,
Thank you for placing an order with HookedOnTronics.
Listed below is a summary of your order.
Please save or print out a copy of this confirmation for your records.
You will need the Order Number to check the status of your order.

Items Ordered:
1 Reference 860w Infinity 8" Single 4 Ohm Car Subwoofer, Unit price: $48.26, Sub Total: $48.26

Merchandise Total: $48.26
Sales Tax: Exempt
S&H: $0.00
Order Total: $48.26

[upsman]

Re: Digger8 Sub - diggity dig it all the way to 20Hz

Benji, I haven't but check this out: http://www.resellerratings.com/store/HookedOnTronics seems to be on the up and up......also if you use this coupon code: Z51012807515 you get an additional 5% off ($1.24).....

BobC

[Benji]

Re: Digger8 Sub - diggity dig it all the way to 20Hz

Sub'd. Interested in doing this as well. Curious if Takitaj could still cut and ship one of these flat packs out. Also curious what it would cost.

I sent him an email but haven't received anything back yet, another member has said that he is very busy so I'll wait!

Benji,

No changes to your list. I'd only comment that the Infinity is only minutely better for slightly higher power handling. Using the Dayton PR makes the difference irrelevant.
The AE PR is slightly larger diameter than the Dayton. I don't recall the exact amount but you should be able to find that with a quick Web search or email AE. It's a small amount though, around 0.25in or so.
One of my goals with the initial Digger8 design was keeping cost minimal without sacrificing performance in most situations. The Dayton PR is a good bit cheaper so that helped that goal, likewise with the Yung. If the Bash were available on sale at the time I made mine, I would've gotten that.
Good luck and thank you for the birthday wish. My Digger rumbled out a nice deep thump in appreciation.

Thanks for the feedback JSR! Much appreciated! I'll go ahead and start ordering parts, will go with the Infinity, AE PR, Bash and see how it turns out! Thank you for this build!

Benji, Check this out 49.00 Shipping Incl.

http://www.hookedontronics.com/show_product_details.jsp?cid=410041&c=1309Froogle&b=Infinity_Reference+860w&gclid=CO_85_eA8LkCFQE6Qgoddy4ALQ

BobC

Thanks Bob! Is this a site that can be trusted? Have you ordered from them before?

[upsman]

Re: Digger8 Sub - diggity dig it all the way to 20Hz

Sorry to bring up an 'old' thread (4 days off being a year old! Happy Birthday Digger8!) but I wanted to see where things were nearly a year on and to ask a couple of questions.

So reading through Kevin's build thread on his Digger8 and some of JSR's comments it seems that the following is true:

Sub = JBL - Good, Infinity - Better
PR = Dayton - Good, AE PR12-970 - Better
Amp = Yung - Good, Bash - Better

Does this all still hold true or maybe there are some newer suggestions? Is the part number for the AE PR correct? Seems if all the 'better' options are ticked an F3 of slightly < 20 might be possible.

I was thinking about asking if takitaj on the forum would cut another box for me based on Kevin's specs but I just wanted to check if AE PR would physically be a straight drop in replacement for the Dayton PR?

Some places are reporting the Infinity REF860W as being out of stock, not sure if it's going EOL or it's just a stock shortage issue. Prices range from $52 (Amazon) to $80 (Infinity).

Benji, Check this out 49.00 Shipping Incl.

http://www.hookedontronics.com/show_product_details.jsp?cid=410041&c=1309Froogle&b=Infinity_Reference+860w&gclid=CO_85_eA8LkCFQE6Qgoddy4ALQ

BobC

[jsr]

Re: Digger8 Sub - diggity dig it all the way to 20Hz

Benji,

No changes to your list. I'd only comment that the Infinity is only minutely better for slightly higher power handling. Using the Dayton PR makes the difference irrelevant.
The AE PR is slightly larger diameter than the Dayton. I don't recall the exact amount but you should be able to find that with a quick Web search or email AE. It's a small amount though, around 0.25in or so.
One of my goals with the initial Digger8 design was keeping cost minimal without sacrificing performance in most situations. The Dayton PR is a good bit cheaper so that helped that goal, likewise with the Yung. If the Bash were available on sale at the time I made mine, I would've gotten that.
Good luck and thank you for the birthday wish. My Digger rumbled out a nice deep thump in appreciation.

[aaronscalise]

Re: Digger8 Sub - diggity dig it all the way to 20Hz

Sub'd. Interested in doing this as well. Curious if Takitaj could still cut and ship one of these flat packs out. Also curious what it would cost.

[Benji]

Re: Digger8 Sub - diggity dig it all the way to 20Hz

Sorry to bring up an 'old' thread (4 days off being a year old! Happy Birthday Digger8!) but I wanted to see where things were nearly a year on and to ask a couple of questions.

So reading through Kevin's build thread on his Digger8 and some of JSR's comments it seems that the following is true:

Sub = JBL - Good, Infinity - Better
PR = Dayton - Good, AE PR12-970 - Better
Amp = Yung - Good, Bash - Better

Does this all still hold true or maybe there are some newer suggestions? Is the part number for the AE PR correct? Seems if all the 'better' options are ticked an F3 of slightly < 20 might be possible.

I was thinking about asking if takitaj on the forum would cut another box for me based on Kevin's specs but I just wanted to check if AE PR would physically be a straight drop in replacement for the Dayton PR?

Some places are reporting the Infinity REF860W as being out of stock, not sure if it's going EOL or it's just a stock shortage issue. Prices range from $52 (Amazon) to $80 (Infinity).

[Pete Basel]

Re: Digger8 Sub - diggity dig it all the way to 20Hz

The "peaky" highpass is what's required to implement the T&S assisted alignments.
6 dB of boost is a HP with a Q of 2 and this combined with the correct box alignment
takes a 2nd order B2 closed box to 4th order Butterworth and a 4th order B4 box to a
6th order Butterworth. The exact alignment and response is not too critical as long
as the final response shape fits the requirements. The filtering of subsonic material
helps the system handle source with excessive subsonic material, noise such as LP
warp or sound effects that might damage the system.

[johnnyrichards]

Re: Digger8 Sub - diggity dig it all the way to 20Hz

No prob Blenton.

I did see the SD300-6, but I need boost around 20-25Hz to give me the extension I wanted in a smaller design. It'd be great if someone can figure out how to adjust the boost frequency on the Yung amps. Per PE staff, the Yung amps also lack a HPF, just an FYI for anyone interested.

It would be interesting to see if that actually holds true, at least on the models with boost. AFIAK, no plate amps with boost do so with simple EQ - they almost always use a peaky high pass to accomplish that. The lack of a HPF on the un-boosted models is a possibility, of course - but rare.

[jsr]

Re: Digger8 Sub - diggity dig it all the way to 20Hz

No prob Blenton.

I did see the SD300-6, but I need boost around 20-25Hz to give me the extension I wanted in a smaller design. It'd be great if someone can figure out how to adjust the boost frequency on the Yung amps. Per PE staff, the Yung amps also lack a HPF, just an FYI for anyone interested.

[Blenton]

Re: Digger8 Sub - diggity dig it all the way to 20Hz

I'll see what I can dig up. As I mentioned earlier, the boost for the Bash amps require a simple resistor change, just as Wolf mentioned. So perhaps that's where I will start with my examination.

Sorry to hi-jack your post, JSR... I'll start a new post

[Pete Basel]

Re: Digger8 Sub - diggity dig it all the way to 20Hz

@ Pete -

I actually have the amp of which you speak - the Yung SD300-6 - and have been wondering if it is possible to shift the frequency and possibly the amplitude of the bass boost. Any idea how to go about doing that? One of my subs uses the Bash 300 and it comes with instructions for modifying the bass boost by swapping a few resistors. They even give you values and placement of the resisters. I haven't endeavored to modify it since I like it the way it is (it's wired up to a 12" sub tuned ~25hz; my neighbors would loath me if I turned up the boost

Anybody know if this can be done on the Yung amp? I can poke my way around a circuit board but am not an electronics expert. If anybody has ideas, I can post pics and am willing to pull out the soldering iron... I also have a 12" Infinity sub sitting in the basement to play with (and a 10" Reference, and a 10" Kappa that was going into the car but may pull HT duty). They all model very well in ported and sealed enclosures, but being able to boost the low end of one of those drivers in a sealed box lower than 30 hz would make me a happy camper. I like it when the walls start shaking. I've worked with them all before and like to tinker.

I've not done it on that amp so I suggest that you ask PE and perhaps start a new thread here asking if anyone has done it.
Look for an OP amp near the front end, and a pair of same value mylar caps near it, somewhere around .05 to .5 uF. That
is where you'd take a picure if you want us to try to help. A schematic and layout would make it easier of course - ask PE.

[Pete Basel]

Re: Digger8 Sub - diggity dig it all the way to 20Hz

Wolf, if the circuit is frequency dependent it needs a reactive component,
that being a capacitor in this case, in fact 2 capacitors when it is 2nd order.
There are also resistors setting the time constants but the caps are usually
easier to find.

[Wolf]

Re: Digger8 Sub - diggity dig it all the way to 20Hz

Most of the time, the boost circuit is a standard Pi-filter, consisting of a couple resistors that can be swapped out; not caps.
Later,
Wolf

[Blenton]

Re: Digger8 Sub - diggity dig it all the way to 20Hz

@ Pete -

I actually have the amp of which you speak - the Yung SD300-6 - and have been wondering if it is possible to shift the frequency and possibly the amplitude of the bass boost. Any idea how to go about doing that? One of my subs uses the Bash 300 and it comes with instructions for modifying the bass boost by swapping a few resistors. They even give you values and placement of the resisters. I haven't endeavored to modify it since I like it the way it is (it's wired up to a 12" sub tuned ~25hz; my neighbors would loath me if I turned up the boost

Anybody know if this can be done on the Yung amp? I can poke my way around a circuit board but am not an electronics expert. If anybody has ideas, I can post pics and am willing to pull out the soldering iron... I also have a 12" Infinity sub sitting in the basement to play with (and a 10" Reference, and a 10" Kappa that was going into the car but may pull HT duty). They all model very well in ported and sealed enclosures, but being able to boost the low end of one of those drivers in a sealed box lower than 30 hz would make me a happy camper. I like it when the walls start shaking. I've worked with them all before and like to tinker.