Termpro Audio Forum   
my profile | directory login | register | faq | forum home

  next oldest topic   next newest topic
» Termpro Audio Forum » Our Archives » General Audio (1999-2001 Archives) » Is there anything really wrong with using one coil on a dvc

 - UBBFriend: Email this page to someone!    
Author Topic: Is there anything really wrong with using one coil on a dvc
Team Solo
Member
Member # 6020

Icon 1 posted      Profile for Team Solo     Send New Private Message       Edit/Delete Post 
A buddy of mine had a memphis 1000d and he has 4 old school punch dvc 15's. He wants a low tuned daily driver. We can wire all the coils in series then have a 2ohm load on the memphis. or we can use 1 coil on each and parralell them up and get a 1 ohm load. they are 4 ohm dvc's. Or should he just run 2 of the 15's?

--------------------
Who needs a team? You kick azz in the lanes for yourself, nobody else.

Posts: 124 | From: USA | Registered: Aug 2001  |  IP: Logged | Report this post to a Moderator
Bass Freak
Senior Member
Member # 6707

Icon 1 posted      Profile for Bass Freak     Send New Private Message       Edit/Delete Post 
quote:
Originally posted by Team OX:
A buddy of mine had a memphis 1000d and he has 4 old school punch dvc 15's. He wants a low tuned daily driver. We can wire all the coils in series then have a 2ohm load on the memphis. or we can use 1 coil on each and parralell them up and get a 1 ohm load. they are 4 ohm dvc's. Or should he just run 2 of the 15's?

Just run two.

Running only one coil is feasible, but it alters the electrical T/S parameters, and makes the sub react differently.

I would definitely not recommend running one coil on each with that much power...




--------------------
Peace, Love, Bass.


Posts: 712 | From: UK | Registered: Sep 2001  |  IP: Logged | Report this post to a Moderator
EPAUL
Senior Member
Member # 4004

Icon 1 posted      Profile for EPAUL   Email EPAUL   Send New Private Message       Edit/Delete Post 
quote:
Originally posted by Bass Freak:

Just run two.

Running only one coil is feasible, but it alters the electrical T/S parameters, and makes the sub react differently.

I would definitely not recommend running one coil on each with that much power...




let's word this a different way since the questioner really doesn't know much about installation.

DO NOT USE ONLY ONE COIL ON A DVC WOOFER, never! To achieve the performance of 4 subs sealed only use 2 of the woofers in a vented enclosure. Wire the subs in parallel for 1 ohm.

--------------------
Premier 930
Stinger cabling, PG rca's
Directed s650's up front
2003 Orion 4002
1 12" RF Power Hx2
Lanzar Vibe 1200d


Posts: 1412 | From: Monroe, MI | Registered: Feb 2001  |  IP: Logged | Report this post to a Moderator
Team Solo
Member
Member # 6020

Icon 1 posted      Profile for Team Solo     Send New Private Message       Edit/Delete Post 
quote:
Originally posted by EPAUL:

let's word this a different way since the questioner really doesn't know much about installation.

DO NOT USE ONLY ONE COIL ON A DVC WOOFER, never! To achieve the performance of 4 subs sealed only use 2 of the woofers in a vented enclosure. Wire the subs in parallel for 1 ohm.



Hold up a minute, what are you trying to say. WHo mentioned 4 sealed. Anyways you my friend don't know much about instalation. 2 15's ported may hit a higher # on the meter, but 4 15's sealed will seem louder due to its overall freq range.

As I posted he wants a low tuned daily driver, he does not want to burp it at his reasonant while he's cruising.

And also, have you ever tired to use one coil? I have, and it sounded a lot louder then the subs coils parelleled. Granted there will only be around 200 or so watts on the single coil.

--------------------
Who needs a team? You kick azz in the lanes for yourself, nobody else.


Posts: 124 | From: USA | Registered: Aug 2001  |  IP: Logged | Report this post to a Moderator
Darkness
Senior Member
Member # 1901

Icon 1 posted      Profile for Darkness   Email Darkness   Send New Private Message       Edit/Delete Post 
running only one coil will lend to a greater chance of heat buildup due to the extra force(power) needed to move the second coil along with the first...if you are very careful with setting the gains(not clipping in any fashion), then i can see it working for a while as long as the woofer isn't trying to be pounding all day...but still it is ill advised to hook up only one coil...better off being safe and hooking up both...that way, the performance of the sub won't be as potshot either...i would only run 2 of the 4 woofers and save up for a second 1000d

--------------------
Linux Airline
Disgruntled employees of all the other OS airlines decide to start their own airline. They build the planes, ticket counters, and pave the runways themselves. They charge a small fee to cover the cost of printing the ticket, but you can also download and print the ticket yourself. When you board the plane, you are given a seat, four bolts, a wrench and a copy of the seat-HOWTO.html. Once settled, the fully adjustable seat is very comfortable, the plane leaves and arrives on time without a single problem, the in-flight meal is wonderful. You try to tell customers of the other airlines about the great trip, but all they can say is, "You had to do what with the seat?"

Posts: 2956 | From: Tinley Park | Registered: May 2000  |  IP: Logged | Report this post to a Moderator
Bass Freak
Senior Member
Member # 6707

Icon 1 posted      Profile for Bass Freak     Send New Private Message       Edit/Delete Post 
[QUOTE]Originally posted by Bass Freak:

Just run two.

Running only one coil is feasible, but it alters the electrical T/S parameters, and makes the sub react differently.

I would definitely not recommend running one coil on each with that much power...


[/QUOT

I thought this was very clear.

Why did this turn into a brawl?


[ 12-26-2001: Message edited by: Bass Freak ]

[ 12-26-2001: Message edited by: Bass Freak ]

--------------------
Peace, Love, Bass.


Posts: 712 | From: UK | Registered: Sep 2001  |  IP: Logged | Report this post to a Moderator
Team Solo
Member
Member # 6020

Icon 1 posted      Profile for Team Solo     Send New Private Message       Edit/Delete Post 
quote:
Originally posted by Bass Freak:
[QUOTE]Originally posted by Bass Freak:
[qb]

Just run two.

Running only one coil is feasible, but it alters the electrical T/S parameters, and makes the sub react differently.

I would definitely not recommend running one coil on each with that much power...


[/QUOT

I thought this was very clear.

Why did this turn into a brawl?


[ 12-26-2001: Message edited by: Bass Freak ]

[ 12-26-2001: Message edited by: Bass Freak ][/QB]



I know what you mean, thanks.

--------------------
Who needs a team? You kick azz in the lanes for yourself, nobody else.


Posts: 124 | From: USA | Registered: Aug 2001  |  IP: Logged | Report this post to a Moderator
EPAUL
Senior Member
Member # 4004

Icon 1 posted      Profile for EPAUL   Email EPAUL   Send New Private Message       Edit/Delete Post 
quote:
Originally posted by Team OX:


Hold up a minute, what are you trying to say. WHo mentioned 4 sealed. Anyways you my friend don't know much about instalation. 2 15's ported may hit a higher # on the meter, but 4 15's sealed will seem louder due to its overall freq range.

As I posted he wants a low tuned daily driver, he does not want to burp it at his reasonant while he's cruising.

And also, have you ever tired to use one coil? I have, and it sounded a lot louder then the subs coils parelleled. Granted there will only be around 200 or so watts on the single coil.



4 sealed or ported, is either too low of a load for the amp or not low enough. That's why I recommended 2 ported. So you could achieve maximum power from the amplifier and still have great bass.

--------------------
Premier 930
Stinger cabling, PG rca's
Directed s650's up front
2003 Orion 4002
1 12" RF Power Hx2
Lanzar Vibe 1200d

Posts: 1412 | From: Monroe, MI | Registered: Feb 2001  |  IP: Logged | Report this post to a Moderator
Red VW GTi
New Member
Member # 5859

Icon 1 posted      Profile for Red VW GTi   Email Red VW GTi   Send New Private Message       Edit/Delete Post 
From my experiences - running 1 voice coil on a DVC sub can potentially cause the sub to be unbalanced - unless it is a balanced sub...no? thus causing a major problem with blowing subs laft and right....

--------------------
Jan
*Red 2000 Volkswagen Golf GTi VR6*

Eclipse CD 8051 HU
Eclipse 6.5 seperates
2 Stinger SP1700 batteries
Alpine V12 90 x 2 amp on the highs
US-2000 sub amp
4 - Treo SS12.44 subs

Posts: 52 | From: College Station, TX, USA | Registered: Aug 2001  |  IP: Logged | Report this post to a Moderator
Rybaudio
Senior Member
Member # 2880

Icon 1 posted      Profile for Rybaudio   Email Rybaudio   Send New Private Message       Edit/Delete Post 
Run all four and upgrade later to two 1000Ds bridged together. In the end you'll have the amps putting out close to their max, and the woofers each getting 500 watts. For now, run it at 2 ohm with all the coils hooked up.
Posts: 3961 | From: State College, PA | Registered: Sep 2000  |  IP: Logged | Report this post to a Moderator
Team Solo
Member
Member # 6020

Icon 1 posted      Profile for Team Solo     Send New Private Message       Edit/Delete Post 
quote:
Originally posted by Rybaudio:
Run all four and upgrade later to two 1000Ds bridged together. In the end you'll have the amps putting out close to their max, and the woofers each getting 500 watts. For now, run it at 2 ohm with all the coils hooked up.


Now this is a good answer, thanks

--------------------
Who needs a team? You kick azz in the lanes for yourself, nobody else.


Posts: 124 | From: USA | Registered: Aug 2001  |  IP: Logged | Report this post to a Moderator
PBCrunch
New Member
Member # 5768

Icon 1 posted      Profile for PBCrunch     Send New Private Message       Edit/Delete Post 
I think Red VW GTi is on to something. Running only one VC can cause the sub to go off axis, which is extremely bad for your woofers.

--------------------
AWK AWK
ph34r the grackle
pbcrunch.grackles.net

Posts: 42 | From: Omaha, Nebraska, USA | Registered: Jul 2001  |  IP: Logged | Report this post to a Moderator
Bass Freak
Senior Member
Member # 6707

Icon 1 posted      Profile for Bass Freak     Send New Private Message       Edit/Delete Post 
The funny thing is I covered all this in one post, and its still going...



--------------------
Peace, Love, Bass.


Posts: 712 | From: UK | Registered: Sep 2001  |  IP: Logged | Report this post to a Moderator
jaggy
Senior Member
Member # 3590

Icon 1 posted      Profile for jaggy   Author's Homepage   Email jaggy   Send New Private Message       Edit/Delete Post 
if the subs are dual 4ohm just run all coils in parallel, 0.5ohm, the impedance rise due to the box should lift it to a more safer impedance.

plus, if you run at 0.5ohm you can only blow the fusing if your running a sine wave with heavy clipping..he's not going to do that is he???

jaggy

--------------------
Digital Designs...true to the source


Posts: 1959 | From: England, UK | Registered: Dec 2000  |  IP: Logged | Report this post to a Moderator
D. Litsey
Member
Member # 3982

Icon 1 posted      Profile for D. Litsey   Email D. Litsey   Send New Private Message       Edit/Delete Post 
how would running one coil make a woofer go off axis?
the coil wraps all the way around the former.
anywho id say run all 4 for now then upgrade amps later

--------------------
 -

Posts: 201 | From: wapakoneta, OH | Registered: Feb 2001  |  IP: Logged | Report this post to a Moderator
xi2elic
Senior Member
Member # 4176

Icon 1 posted      Profile for xi2elic   Author's Homepage   Email xi2elic   Send New Private Message       Edit/Delete Post 
can we all stop trying to be smart and talk about things that are mildly important. thanks

--------------------
Scott Rehlander
www.splmaxcup.com

-2002 USACi Finals 301-600 6th
-2005 SLAP Finals 0-160 Stock Champ
-2006 SS1-2NW World Finals

 -
The Loud Crowd

Posts: 979 | From: Beverly MA | Registered: Feb 2001  |  IP: Logged | Report this post to a Moderator
   

   Close Topic   Feature Topic   Move Topic   Delete Topic next oldest topic   next newest topic
 - Printer-friendly view of this topic
Hop To:


(c) 1996-2007 WHE Inc, Carson City Nevada, USA

Powered by Infopop Corporation
UBB.classic™ 6.7.2