the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
icon

5.25 mid bass recommendations peerless


Post ReplyPost New Topic
< Prev Topic Next Topic >
Laojoe99 
Member - Posts: 8
Member spacespace
Joined: June 18, 2003
Location: California, United States
Posted: May 22, 2008 at 6:43 PM / IP Logged  
I'm looking for a 5.25" mid bass driver for a custom car audio project. I was trying to buy Peerless's 830512 driver, but they longer make them. Does anyone know of any other brands they can point me to? I have called Madisound, Speakercity, and they all say they don't have anything in stock. I need a 5.25" for the kick pods for space reasons and would prefer not to go up to a 6.5". 4ohms of course with 89-91db sensitivity rating. I'm having a world famous loudspeaker designer design my custom crossover network for me, so I want everything to be right and I have been searching for a week now and ran out of places to look. Thanks in advance
DYohn 
Moderator - Posts: 10,741
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: April 22, 2003
Location: Arizona, United States
Posted: May 22, 2008 at 8:11 PM / IP Logged  
Did you look at Parts Express?  BTW, any "world famous crossover designer" worth his or her salt can design a proper crossover network for almost any combination of drivers.  Always choose your drivers first, don't have a Xover network designed first... that is if you want it to sound right!
Support the12volt.com
Laojoe99 
Member - Posts: 8
Member spacespace
Joined: June 18, 2003
Location: California, United States
Posted: May 22, 2008 at 11:27 PM / IP Logged  

Yup I checked Partsexpress, they don't sell a 4ohm 5.25" driver, and the reason i am looking for a driver is so the crossover network could be designed around it and the tweeter. I was looking at Morels, but they're a bit too pricey for me, I'm looking to spend around 150 for the pair.

I wouldn't believe it if someone told me " a world famous designer" was gonna do their crossover as well. I'm pretty excited about it, I work for him and he's doing it for me as a favor, but this whole driver search is tough and it's holding me back.  Thanks for the suggestion though

Steven Kephart 
Platinum - Posts: 1,737
Platinum spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spaceThis member consistently provides reliable informationspace
Joined: November 06, 2003
Location: Oregon, United States
Posted: May 23, 2008 at 1:59 AM / IP Logged  

You should check out my Comprehensive Front Stage stickie in this forum.  I go through quite a bit of information on how to select speakers for a custom speaker system.  Here's a link:  https://www.the12volt.com/installbay/forum_posts.asp~TID~78597~PN~1

Also, don't limit your choices based solely on that sensitivity rating.  Unless you are worried about efficiency, it should be a very low priority on your list. 

Who is the "world famous designer" you mention? 

DYohn 
Moderator - Posts: 10,741
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: April 22, 2003
Location: Arizona, United States
Posted: May 23, 2008 at 8:32 AM / IP Logged  
PE (and Mad) do certainly have at least one 4-ohm 5.25" woofer.  OK, here's a few options:  CDT, Vifa, Hi-Vi (Swans) and there are many others.
Support the12volt.com
haemphyst 
Platinum - Posts: 5,054
Platinum spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: January 19, 2003
Location: Michigan, Bouvet Island
Posted: May 23, 2008 at 10:02 AM / IP Logged  
I, too am interested in the name of this "world famous designer". (ONE of the three people now answering this thread will PROBABLY know him... if not by reputation, then personally.) If truly "world famous", and trying to design a divider based on TWEETER output (and is this why you are placing so much emphasis on sensitivty?), he should be able to pad the tweeter quite easily.
You might also look to see if the Silver Flutes are still available at Madisound. At 20 bux a piece, you'll have a hard time beating these.
I also agree with Steven, sensitivity should be the bottom of your priority list, spec-wise. While sensitivity is nice to have, it seems like you are placing that as the number one priority, which it shouldn't be. Maybe not LAST, but certainly not first.
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Laojoe99 
Member - Posts: 8
Member spacespace
Joined: June 18, 2003
Location: California, United States
Posted: May 23, 2008 at 11:49 AM / IP Logged  
You guys ever heard of Albert Von Schweikert? Not too many people have because he does 2 channel home stereo. He's done one crossover setup for his son's car years back, and since I'm into car audio, he's doing it for me as a favor. I don't want you guys to think I'm bragging to people, i only mention world famous because he is respected overseas and here in the states as a designer, his speakers also won a lot of awards from top audiophile magazines.. I'm excited but I don't know what to expect, so i don't want to blow smoke up anyone's butt until it's done, but as you can see i have been coming to the12volt for info for the past 5 years, now that I have some money for nice equipment and landed a perfect job working for an audiophile company I'm stepping up my system a tad bit for my Acura Integra(daily driver), doing something very few people get a chance at. I thank you guys for the help and responses, I'll definietly keep you guys posted with pictures once this thing is done.
What do you guys think should be my priority in my search? Although i work for the man, he's always busy and i hate to bother him with these kind of questions, I also told him I'd do my own research. I contacted HIVI as they are only 1 hour away from me in the pasadena area, but they don't really offer 4 ohm 5.25" drivers, Thanks again guys!
Laojoe99 
Member - Posts: 8
Member spacespace
Joined: June 18, 2003
Location: California, United States
Posted: May 23, 2008 at 11:59 AM / IP Logged  
Steven thanks for the sticky, great stuff. I like how he mentions how important the crossover is, he speaks a bit about what Mr. Von Schweikert told me he can do for me, "A properly designed crossover will contour the acoustic response of the drivers in their intended location." that is from the controversy awaits section. I was told that thru the crossover he can make the "image" of my music wherever i want it(driver side in front of me of course). With custom kick panels he tells me it should be easier for him to accomplish the same kind of technology he uses in his speakers crossover to get the job done, which should be easier since in the car the speakers are in a fixed location. He tells me it won't sound as good as the home system because of the cars interior, but it'll sound real good compared to systems that people spend a lot more money on.
haemphyst 
Platinum - Posts: 5,054
Platinum spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: January 19, 2003
Location: Michigan, Bouvet Island
Posted: May 23, 2008 at 12:47 PM / IP Logged  
I have, indeed heard of the man, and I have met him, as well. (I cannot remember how long ago it was, but it was at the CES a few years back, and I have heard his systems...)
When deciding on a mid-range driver, my number one priority is FLATNESS IN THE PASSBAND. As this is the driver that will be reproducing the band that the human ear is MOST sensitive to, it is critical that the driver be as exacting as possible in that area.
I do have a few points to make; observations, really...
1: Finding a GOOD 5.25 inch driver is going to be difficult, at best. 5.25 inch drivers are most often found in the car, and very few manufacturers offer good ones, simply due to their intended purpose in life. I'd HIGHLY recommend hogging your hole out for a 5.5 inch driver... Your possibilites then become FAR more varied and vast, with many more significantly higher-end options, especially.
2: I also recommend 8 ohm drivers for mids. As the distortion from ANY amplifier increases as the impedance goes lower, so too, does it DECREASE as the impedance goes higher. Distortion in (again) the most sensitive band of human hearing. With amplifier power as cheap as it is today, there is no reason you shouldn't be able to find ANY amplifier to provide you with more than adequate power for any mid/tweeter combination.
3: Kick panels suck. Period. Put the arrays in the doors, you'll be glad you did.
4: The passives alone will NOT be enough to bring your image to the steering wheel. TD is really necessary, to do it properly. Physics tell you that the line lengths from driver to ear are just TOO disparate to do it properly, and passives will not be easy to manipulate after the installation.
5: Can you actually go three way? The difficulty I see with a two-way, especially a two-way with a 5.25 inch driver, is the matching of the drivers... Physics dictate again how high a driver can go without beaming. With a 5.25 inch driver, I'd never go much over 400Hz for extreme off-axis (such as you'd find in a car) listening. Where are you going to find a tweeter that can go that low without blowing up, and STILL go to 15-18K, clean? (This, by the way, is coming from a guy that HAD been a two-way fan forever, then went three way, and is a convert!) Also, your axis is MUCH steeper on the driver's side than the passenger's.
The house is a COMPLETELY different animal. As you are litening on-axis, driver diameter selection becomes less important. Example, the Adire Audio 6.8 is a 7 inch driver, with an upper clean ON-AXIS frequency response of 3.5kHz. I would NEVER use them that high in the car, EVER. Mine happen to be crossed over at 250Hz. Also, in the house, you are equidistant from the drivers (speaker system). The car? Enh... Not so much.
I'm kinda done for now... You have a PM.
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
DYohn 
Moderator - Posts: 10,741
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: April 22, 2003
Location: Arizona, United States
Posted: May 23, 2008 at 12:51 PM / IP Logged  

Mr. Von Schweikert is of course correct.  The crossover is perhaps the most important part of any loudspeaker system, and the interior of a vehicle is a very challenging location for audio.  That's why most really serious SQ competitors use all-active systems so they can be set up in the vehicle and using an RTA, the response contour can be created in real time.  No standard computer modeling software can do that.  I actually use the same technique when designing passive crossovers: I breadboard what I've modeled as a starting position then set up the system and the RTA and adjust values as necessary to get the results I want.  It can be a very time consuming process.  And, as you should also be aware, even sophisticated crossover modeling software like Leap can only simulate approximations or anechoic conditions or (limited predefined) listening spaces.  The home environment is just as tricky as the car in many ways, although certain defaults can be assumed that will apply to almost any room in ways that cannot be assumed in vehicles. 

I still say your proper path is to choose your drivers first and provide your designer with the T/S parameters, response and impedance curves for them.  And then if it's being done properly, setup and testing before the design is final is critical.  Good luck!

Support the12volt.com
Page of 3

  Printable version Printable version Post ReplyPost New Topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

  •  
Search the12volt.com
Follow the12volt.com Follow the12volt.com on Facebook
Thursday, April 18, 2024 • Copyright © 1999-2024 the12volt.com, All Rights Reserved Privacy Policy & Use of Cookies
Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Secured by Sectigo
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
Support the12volt.com
Top
the12volt.com spacer
the12volt.com spacer