Anybody ever hear of Velodyne Car Subwoofers?

[Eikon]

A friend of mine asked me to see if I could help him sell these.

There are two 12" subs with some kind of audio control box (might be a crossover or something like that). I will take a photo and post it.

I am just wondering if anyone can help me find out more about them. I have never heard of Velodyne car audio.. I know they make pretty nice stuff for home audio.

They look pretty nice.. maybe they are worth something?

Thanks

[PoorManQ45]

HEhe, they pieces of junk, I'll take them off your hands as scrap.

Hahah, I'm just messing with you. I haven't heard of Velodyne car audio stuff. It may just be home audio subs put in the car, and if that's the case then they're worth something

[Rex]

Yeah, see if you can find any part numbers and we can search for them on the http://www.velodyne.com site.

[Eikon]

Yeah, see if you can find any part numbers and we can search for them on the http://www.velodyne.com site.

Here's what I've got... Model # AS12NC000Serial # 56142502Prod. date 5-21-96

Photos... they had been in his closet for a while... so a little dusty.

The bottom just to prove they are really Velodyne. (sorry for the quality)

Here is the controller that accompanies the two subs.

I did a search on a car audio only web-site.. can't seem to remember the name at the moment... and I found a few referances... People trying to decide between Velo and McIntosh and a couple other (non-Best Buy) type brands.

What do you guys think... Can you help me find info?

Should I offer him $50 buck each and keep them?

Thanks a ton!

[Rex]

$50 each, you'd be robbing him.

Shoot an email to [email protected] with all the numbers above and see what they can tell you.

[Simmsled]

Unless you get info from Velodyne, such as Thiel Small parameters, anyone that has those subs will have a hell of a time making them sound the way they are supposed to. I would say sell for no less than $100 each.

[Eikon]

Unless you get info from Velodyne, such as Thiel Small parameters, anyone that has those subs will have a hell of a time making them sound the way they are supposed to. I would say sell for no less than $100 each.

I have no idea what Theil Small Parameters are... but... isn't that speaker controller in the third pic designed to control the sound output?

He was powering each with a large pioneer amp. I didn't look at the power of them.

Where would you guys go to sell these things.?

I was thinking ebay at first.. but I don't know if anybody would appreciate the quality, or know anything about them.

I am still considering making him an offer and keeping them. I just don't know if I want to use up the rest of my trunk space on speakers.

Thanks for the input!~

[Rex]

If you put them on ebay, don't put them in Car Audio, put them in Musical Instruments or Professional Audio.

Also, I'm serious give [email protected] a try. I used a similar email to get information about a '60's era Hoover can opener I found. They responded within a week and provided my lots of info. It would have been nice if they offered to buy it .

I got that email addy off their site.

[SickImports]

I googled it and only found home audio by Velodyne. heres a Velodyne home audio install.

[PoorManQ45]

Yummy, Mcintosh Amps

[Simmsled]

Thiel Small parameters are for proper sub enclosure tuning. it is necessary so you build a box with proper airspace, port length, port diameter, and number of ports. The box either kills the sub or makes it sing. I would list it on ebay but not in car audio as Rex mentioned. My guess is that the enclosure for that sub will be enormous as it looks like a custom sub for home theater. In the home theater business, Velodyne would offer high end subs without enclosures so that installers could integrate the subs into the floor or walls when building the room. It is the coolest, but very expensive. I bet there has to be someone on ebay that would love to get their hands on em. I would start the bidding at 100 for the pair and have a reserve at 200 (or whatever you think you could get out of em or would be willing to take)

BUT!!!,

do research first. you may end up getting much more. who knows. good luck

[Rex]

$50 each, you'd be robbing him.

Shoot an email to [email protected] with all the numbers above and see what they can tell you.

Not sure if you sent an email, I did, and got a response within 24 hours, here it is (including an offer to buy them)

The sub(s) you've acquired is a DF-12SC Velomotive car subwoofer, they were manufactured by Velodyne for a period of about 2 years.They were the automotive equivalent of our home servo subwoofers, and were quite effective when set up and operating properly.They usually require professional installation, it's not something you simply throw into your car and can expect to get working if your not accustomed to working with them. We get a very high demand for parts on these units, if by chance you have no intention on using this piece, I'll be happy to take it off of your hands. Thank you, David J. SantosCustomer Service Mgr.Velodyne Acoustics, Inc.

[Eikon]

Thanks Rex.

I was actually just about to send an email off to them today.

I had been talking more with my friend about my research.... He thought that putting them on ebay was a decent idea... he said to set the reserve for the pair at $100. I told him I thought we might be able to do a little better. So he said that if I wanted to give him $150 for the set, he would be happy with that. Then he said I could do whatever I wanted with them.

I think I will pay him.

I am going to email the guy at Velodyne right away... if he offers me more than $150... I will ship them out and split the extra with my buddy. If less, I will keep them.

Thanks again for all of your assistance... I really appreciate it!

[Rex]

For got to include his specific email address

[email protected]

[Eikon]

Thank Rex...

This is funny! He is not offering to give me money for them... simply to "take them off my hands". How generous of him! What I do find interesting is that he is able to trace this unit back to a sales rep firm...

I emailed Mr. Santos. See just below for his reply. Then read further below for what I emailed to him.

David Santos" <[email protected]> wrote:

Date: 05/05/2005 01:05:39 PM From: "David Santos" <[email protected]> ReplyTo: "David Santos" <[email protected]> To: [email protected] Subject: Re: To Mr. David Santos (CS manager)... RE: Info on Velodyne car audio subwoofers (DF-12SC)..

Seth, Your friend did not send an e mail to me, he sent an e mail to Velodyne inquiring about what it is he had been given by a friend of his.I was simply the fortunate person who got to respond to his question.................. Now, just to explain I was not making an offer to purchase the woofer(s) from you or your friend, please read the e mail carefully,I said "I'll be happy to take them off your hands". That's exactly what I meant when I wrote it. Other than the fact that this unit was sent to our sales rep firm in the Midwest back in 1996, I have no idea what condition it is in, whether or not it is functional, or what it has been subjected to in the last 8-9 years. So purchasing would not be a very prudent move at this point. How did you come to possess the unit? Regards, David J. Santos Customer Service Mgr.Velodyne Acoustics, Inc.

-----Original Message-----From: [mailto:[email protected]]Sent: Thursday, May 05, 2005 9:35 AMTo: [email protected]: To Mr. David Santos (CS manager)... RE: Info on Velodyne car audio subwoofers (DF-12SC)..

Mr Santos,

A friend of mine sent an email the other day to you in regards to some DF-12SC auto subwoofers.





Your response was as follows....

"Not sure if you sent an email, I did, and got a response within 24 hours, here it is (including an offer to buy them)

The sub(s) you've acquired is a DF-12SC Velomotive car subwoofer, they were manufactured by Velodyne for a period of about 2 years.They were the automotive equivalent of our home servo subwoofers, and were quite effective when set up and operating properly.They usually require professional installation, it's not something you simply throw into your car and can expect to get working if your not accustomed to working with them.

We get a very high demand for parts on these units, if by chance you have no intention on using this piece, I'll be happy to take it off of your hands.

Thank you,

David J. SantosCustomer Service Mgr.Velodyne Acoustics, Inc. "





I do in fact have two of these speakers with the following Model # AS12NC000Serial # 56142502Prod. date 5-21-96

*I just read one of the two labels... i am sure the other has a different serial number.



I also have the corresponding Servo Subwoofer Controller unit.

You mentioned in your email that you would be interested in purchasing them for parts resale. Please let me know when price you would be willing to offer.

I had planned on using these, however it strikes me that I might not have the knowledge to install them properly in order to make them work like I desire.

You can contact me back at this email address... or call me on my cell phone..

920-819-2271.

Thanks!

[Rex]

Can't blame him for trying.

[Simmsled]

Here is the owners manual...

http://www.velodyne.com/velody...c.pdf

I emailed one of my sales rep friends and he sent me this. He said that they sold very few of these but that they are great if you have enough room for them and can properly set up the servo system. If you do not connect the servo correctly, the whole system could be damaged. Just FYI. I have used one of these in a home theater application and I never knew they actually were intended for car audio. Thats wicked.

[SickImports]

those subs look pretty sucky.

[Rex]

those subs look pretty sucky.

Thanks for the great contribution to this thread, it's a perfect reflection of your wealth of knowledge, experience and skill.

Please don't post whore in this forum.

[PoorManQ45]

HAha, sick him rex

Oh wait, that's not rex. Here he is:

Anyway, did you see the low frequency extention on that sub!

I wonder if it delivers useable output that low, or they're just stating that it can play that low?

[Eikon]

Thanks for the great contribution to this thread, it's a perfect reflection of your wealth of knowledge, experience and skill.

Please don't post whore in this forum.

I think he was trying to be ironical...

Thanks a TON simmsled... great link to the owners manual. I appreciate it. I searched the site and couldn't even come up with that.

Do you guys think there is enough room in the back of my 240 convertible trunk to properly fit these.... or do they require a much larger enclosure?

[Simmsled]

sorry about the delayed response... but I think you would only have enough room for 1 of those for proper sound/airspace/functionality of the trunk area.

[PoorManQ45]

That sub may work in an aperiodic mat enclosure, but the only place to vent it would be to the outside...

Or, you could try an isobarik setup to half the airspace required.

[Eikon]

En engles por favor?

You are a little over my head with your big fancy words.

Can you explain aperiodik mat and hyperbarik for me?

Thanks

[Rex]

AP Mats

USD AP Mats An AP subwoofer system is one which employs 2 enclosure volumes coupled with a purely resistive element, the AP Mat. When such a system is properly designed, it is possible to control the woofer cone movement by the energy transfer though the precision acoustic resistance of the AP Mat. The completed system will be considered A-periodic, or over-damped with a Q well below 0.7 Qts. In contrast, most car audio systems are grossly under damped, with Q's greater than 0.8 and higher. These high-Q systems have poor transient response, nasty peaks in their frequency response and high rates of roll-off. The result of controlling cone motion with a resistive AP Mat is a very low system Qt. A-periodic systems feature excellent transient and phase response, smooth frequency response and extended very-low frequency reproduction with quicker attack, less bass hangover and lower cone distortion.

* Constructed of high-quality MDF and special high-density FMSTM damping material * Regains trunk space by using a very small box size (less than 0.33 cubic feet) * No expensive meters needed to "tune" the enclosure * Very predicatable flat frequency response * Power handling of small sealed box w/ bass of a large box. * Provides detailed bass response, and lower distortion. * Improved transient response versus other boxes designs. * AP Mat enclosures extend lower than conventional enclosures. * Comes with easy to follow installation instructions. * Available for 10", 12" and 15" subwoofers

Subwoofer Compatibility 10" Subwoofer Qts of 0.39 or less 12" Subwoofer Qts of 0.45 or less 15" Subwoofer Qts of 0.45 or less

Isobaric - SealedWhen enclosure space must be at a minimum, sealed isobaric designs work very well. These usually require half the space of a basic sealed enclosure, but require twice as many drivers and will acheive the same acoustical output as the single driver show above in the larger enclosure.

Isobaric - Sealed (Compound Loading)Another isobaric enclosure with the drivers facing the same direction. Obviously this will require a larger enclosure than the one shown above, but again, output will be the same.

Isobaric - Sealed (Back to Back)Another variation of an isobaric enclosure. It doesn't matter which way the two drivers face, but if you have the space to use this enclosure, you should be able to use a simple sealed enclosure instead (only one driver reguired!).

Isobaric - Sealed (Planar Loading)Odd spaces will require unique box shapes. This isobaric enclosure can be a great solution for such a space. Remember, the volume of air space between the two drivers is not crucial to the design of the enclosure, (however, you do not want to make it too small) only the volume of the main section of the enclosure (that of the rear enclosed driver).

Isobaric - Bass ReflexIf space is at a premium or just a smaller enclosure is desired, an isobaric design may be used. The volume of the enclosure wil be approximately half the space of the above enclosure with the same results. The downside is you will need two woofers vs. one and the output will be the same.

Isobaric - Bass Reflex (Compound Loading)This is a variation of the above enclosure. As long as the woofers are mechanically in phase, it doesn't matter which way they face each other, however this will require a larger enclosure to accomodate the magnet and frame assembly of the outer woofer and is more complex to build.

Isobaric Bass Reflex - Passive Radiator EnclosuresPassive radiator systems are very similar to ported systems. Instead of a tuned port, a "drone cone" is used to extend the low frequency response. Most look like a flat diaphram, some may look like a woofer, but will have no magnet structure. The response is similar to a ported system, but the cut-off frequency is slightly higher, and the cut-off slope is slightly steeper. Many of you may have seen the very small enclosures made by Stillwater Designs® that used 4'' drivers with a passive radiator (not sure if they still make these). These worked extremely well (for what they were) in vehicles that literally had next to no room at all to mount a conventional enclosure inside of the vehicle (i.e.: Jaguars XJS, mounted under the seats).

Isobaric Single Reflex - Band Pass EnclosuresThe single-reflex band pass enclosure is basically a combination of a sealed and vented enclosure. These can be fairly small enclosures, though larger than a sealed enclosure. They offer great power handling, good low frequency response, but are not as efficient as vented enclosures (top of this page), and are more complex to build. However, when built correctly, these make excellent enclosures and are often used by competitors. This is often referred to as a fifth order enclosure, but it's not. The addition of a crossover makes it a fifth order system.

[Eikon]

Holy Crap!

Can you make that a thread of it's own... then post a link to it in a sticky?Maybe that's already been done and I am too stupid to find it?

That's really great info. Thanks Rex!

[Rex]

Holy Crap!

Can you make that a thread of it's own... then post a link to it in a sticky?Maybe that's already been done and I am too stupid to find it?

That's really great info. Thanks Rex!

Done it's in the one sticky with all the links.