High quality desk top speaker? Full range drivers...

0 Members and 2 Guests are viewing this topic. Read 120042 times.

Hank

  • Full Member
  • Posts: 1206
    • http://www.geocities.com/hankbond1/index
Re: High quality desk top speaker? Full range drivers...
« Reply #280 on: 20 Jan 2014, 05:08 pm »
Quote
I am ready to accept orders for these flatpacks.
  Judging from interest in "In-Wall" and "On-Wall" and from the new interest in Sound Bars, I think a front port may be the best configuration.  Also, people who use these as desk-tops will likely have them against a wall, which also would best be a front port design. 
My 1 1/2 cents.

Danny Richie

Re: High quality desk top speaker? Full range drivers...
« Reply #281 on: 20 Jan 2014, 05:18 pm »
  Judging from interest in "In-Wall" and "On-Wall" and from the new interest in Sound Bars, I think a front port may be the best configuration.  Also, people who use these as desk-tops will likely have them against a wall, which also would best be a front port design. 
My 1 1/2 cents.

I tried them that way. Too much of the signal above the tuning frequency of the port was passing through the port and it caused a hump in the response. The only way to smooth out the lower range was to move the port to the back.

mlundy57

  • Industry Participant
  • Posts: 3626
Re: High quality desk top speaker? Full range drivers...
« Reply #282 on: 20 Jan 2014, 07:19 pm »
Hi folks,

I am ready to accept orders for these flatpacks. I will be boxing them tonight and will start shipping tomorrow.

Note: my website is far from complete. I rushed a little to get it working to sell these flatpacks.

I have a coupon that drops the price of the pair from $80 to $66. This is limited to the first 12 pairs sold. During checkout enter lgk33

I can accept Paypal OR you can use any payment method you have setup with Amazon. To use Amazon, just click on the "pay with amazon" button. For paypal, ignore the amazon button and look for the Checkout and Place Order buttons. Please let me know if you have any questions, or run into any trouble. My email address is my username here AT gmail.

View and purchase here: http://www.subassemble.com/product/lgk/

I'm in. I ordered two pair today.

Danny,

Any idea what the cost of the kit will be drivers, internal components and inline RCA filter?

Mike

Danny Richie

Re: High quality desk top speaker? Full range drivers...
« Reply #283 on: 20 Jan 2014, 08:22 pm »
I'm in. I ordered two pair today.

Danny,

Any idea what the cost of the kit will be drivers, internal components and inline RCA filter?

Mike

Here is the break down.

Pair of LGK drivers. $58.
Passive compensation filters $52.
Set of tube connectors $50.
Ports, wire, screws, solder and heat shrink $8.
1/2 Sheet of No Rez $20 (I don't normally sell half sheets).

So I will offer a complete kit for $189 that includes everything.

Now a inline passive high pass filter can vary. The correct Sonicap platinum value depends on the input impedance of your amp. And if you want a by-pass on the filter or not... I can make up the ones I build for Serenity Acoustics for $100 a piece.

mlundy57

  • Industry Participant
  • Posts: 3626
Re: High quality desk top speaker? Full range drivers...
« Reply #284 on: 20 Jan 2014, 08:29 pm »
Here is the break down.

Pair of LGK drivers. $58.
Passive compensation filters $52.
Set of tube connectors $50.
Ports, wire, screws, solder and heat shrink $8.
1/2 Sheet of No Rez $20 (I don't normally sell half sheets).

So I will offer a complete kit for $189 that includes everything.

Now a inline passive high pass filter can vary. The correct Sonicap platinum value depends on the input impedance of your amp. And if you want a by-pass on the filter or not... I can make up the ones I build for Serenity Acoustics for $100 a piece.

Thanks.

As for the inline passive high pass filter earlier in this thread you said my amp would need a .1uF cap. What would a filter like that run without a by-pass?

Mike

randytsuch

Re: High quality desk top speaker? Full range drivers...
« Reply #285 on: 20 Jan 2014, 08:45 pm »
I guess that's a LOT on interest in these.

I just tried to buy the flatpack, but I couldn't apply the coupon, limit has already been reached :(

Randy

S Clark

  • Full Member
  • Posts: 7464
  • a riot is the language of the unheard- Dr. King
Re: High quality desk top speaker? Full range drivers...
« Reply #286 on: 20 Jan 2014, 08:47 pm »
I tried, got the coupon to apply, but could not get past the Amazon password... tried it several times. :?
Oh well, I really wanted to do a folded quarter wave box anyway.

Danny Richie

Re: High quality desk top speaker? Full range drivers...
« Reply #287 on: 20 Jan 2014, 08:58 pm »
Thanks.

As for the inline passive high pass filter earlier in this thread you said my amp would need a .1uF cap. What would a filter like that run without a by-pass?

Mike

Sonic Craft is out of the .1uF Platinum's. I have two left. $55 each for those caps. You can then with them directly into your amp input or pre-amp output. That is the cheapest way.

baniels

  • Jr. Member
  • Posts: 67
Re: High quality desk top speaker? Full range drivers...
« Reply #288 on: 20 Jan 2014, 09:00 pm »
Sorry to hear the Amazon method didn't work. I have removed it for now until I can troubleshoot it. I used it for a few test orders and it worked okay this morning.

 Paypal has been working fine.


devinkato

  • Jr. Member
  • Posts: 71
Re: High quality desk top speaker? Full range drivers...
« Reply #289 on: 20 Jan 2014, 09:12 pm »
Sonic Craft is out of the .1uF Platinum's. I have two left. $55 each for those caps. You can then with them directly into your amp input or pre-amp output. That is the cheapest way.

Ouch!  expensive.

Danny - what are your thoughts on active filtering?  Many computer sources (as I suspect many will be using these on desktops) allow for active filtering.  Additionally, $55x2 caps would be equal cost wise to a nice minidsp kit with more flexible filtering options (custom parametric curves anyone?). 

I know that there are disadvantages to active filtering, but for $29 dollar drivers - will they be negligible? 

jcotner

  • Jr. Member
  • Posts: 189
Re: High quality desk top speaker? Full range drivers...
« Reply #290 on: 20 Jan 2014, 09:36 pm »
If the source is digital anyway, i.e. computer, then the math for
that filter can be done pre D/A converter for the cost of the
code. Which may be free, bet Hal knows the answer to that one.

I'm inclined to agree with you. $110 for two caps for $58 worth
of drivers is a little steep. Not faulting Danny on this one.
Since he sells caps anyway, it's easy for him to grab one from
stock or an earlier prototype. I'm a programmer and if I had
the caps, I'd go for that before I would sit down and write
the code to do the filtering.

Danny Richie

Re: High quality desk top speaker? Full range drivers...
« Reply #291 on: 20 Jan 2014, 09:51 pm »
Ouch!  expensive.

Danny - what are your thoughts on active filtering?  Many computer sources (as I suspect many will be using these on desktops) allow for active filtering.  Additionally, $55x2 caps would be equal cost wise to a nice minidsp kit with more flexible filtering options (custom parametric curves anyone?). 

I know that there are disadvantages to active filtering, but for $29 dollar drivers - will they be negligible?

Hey, you can try using a .1uF Gen.2 Sonicap. They are $3.96 each and probably still better than 90 something percent of all the other caps out there for that application. And I have tons of them in stock.

A Teflon fim and foil cap is just high. No way around it. Just check the price of any of them. And the Sonicap Platinum's are not the most expensive.

A Mini DSP is not high on my list. Unless you are looking to suck the life right out of the music. D/A conversion and processing of those things is about on par with a $49 CD player from Walmart. Maybe for a desktop system you might still get by with it and have fun playing with it, but I don't recommend them.

HAL

  • Industry Contributor
  • Posts: 5532
Re: High quality desk top speaker? Full range drivers...
« Reply #292 on: 20 Jan 2014, 09:53 pm »
The issue with active filtering is that you need either dual synchronized DAC's or a DSP board with DAC's.  If you like the DAC's, you can use the minidsp.  I don't like them.  For the DAC's I do like they are a lot more than the caps.  The Sonicap gen 2 is a very good start.

Bob in St. Louis

  • Volunteer
  • Posts: 13259
  • "Introverted Basement Dwelling Troll"
Re: High quality desk top speaker? Full range drivers...
« Reply #293 on: 20 Jan 2014, 10:00 pm »
Here is the break down.

Pair of LGK drivers. $58.
Passive compensation filters $52.
Set of tube connectors $50.
Ports, wire, screws, solder and heat shrink $8.
1/2 Sheet of No Rez $20 (I don't normally sell half sheets).

Sorry for the noob question, but what is the filter for, and what are tube connectors?

randytsuch

Re: High quality desk top speaker? Full range drivers...
« Reply #294 on: 20 Jan 2014, 10:01 pm »
Hey, you can try using a .1uF Gen.2 Sonicap. They are $3.96 each and probably still better than 90 something percent of all the other caps out there for that application. And I have tons of them in stock.


I was thinking a reasonably priced film and foil would be the way to go for these.
All teflon's are expensive, unless you want to try a Russian mil teflon.

Randy

devinkato

  • Jr. Member
  • Posts: 71
Re: High quality desk top speaker? Full range drivers...
« Reply #295 on: 20 Jan 2014, 10:05 pm »
Sorry for the noob question, but what is the filter for, and what are tube connectors?

The filter rolls off the low end gently - 6db slope (Danny correct me if I'm wrong) to help the drivers a bit and cut out some subsonic frequencies.

Tube connectors are simply a way to connect wire to the cabinet (vastly superior to binding posts).  http://www.electracable.com/tubeconnector.htm

Bob in St. Louis

  • Volunteer
  • Posts: 13259
  • "Introverted Basement Dwelling Troll"
Re: High quality desk top speaker? Full range drivers...
« Reply #296 on: 20 Jan 2014, 10:09 pm »
Ahh...understood. Thank you.
I'm new to single driver, and have always used binding posts. Now I understand.

devinkato

  • Jr. Member
  • Posts: 71
Re: High quality desk top speaker? Full range drivers...
« Reply #297 on: 20 Jan 2014, 10:12 pm »
Ahh...understood. Thank you.
I'm new to single driver, and have always used binding posts. Now I understand.

Single drivers are fun :)  There's something nice about the simplicity about them, even though sometimes you have to give something up (usually low and high end) with them.  Danny seems to think that we won't have to give up much at low/medium listening levels with these guys though.  Totally excited to see them.

As far as the tube connectors, they're not only for single drivers.  They're awesome at any time you need to plug speaker wire into a cabinet.

Bob in St. Louis

  • Volunteer
  • Posts: 13259
  • "Introverted Basement Dwelling Troll"
Re: High quality desk top speaker? Full range drivers...
« Reply #298 on: 20 Jan 2014, 10:20 pm »
Single drivers are fun :)  There's something nice about the simplicity about them,.....
That's what I thought I was buying into, but we quickly went from $58 to $189.
I was planning on building my own boxes, so the jump in price caught me off guard.

devinkato

  • Jr. Member
  • Posts: 71
Re: High quality desk top speaker? Full range drivers...
« Reply #299 on: 20 Jan 2014, 10:37 pm »
That's what I thought I was buying into, but we quickly went from $58 to $189.
I was planning on building my own boxes, so the jump in price caught me off guard.

Yeah, hopefully we'll be able to purchase the drivers bare.  I know a lot of car audio guys who would kill to use something like that as a point source driver in a 3-way.