ultimate157
5,000+ posts
Engineering Student
I was pretty disappointed to see Audiobahn in a 350z as well as (though not as bad) RF subs in a 745i
In all honesty I respect the advise EVERYONE is giving me, us, (JLS) - I'll take you up on all the advice all given here. The book seems like something every shop owner should have in their library - I may have come across that title in other readings online and other forums/websites. I DO know that it is a hobby - in which I do indulge myself into - but not as much as many of you guys are here. It's almost like a religion here and I can respect it because you all love it so much. And to attain the vast knowledge you all have goes to show how much it does mean to you guys. Again so I can clarify - I have ENOUGH knowledge for myself to handle clients and help them to the best of my ability. I take little if any help design and fabrication of any enclosure. And if I didn't clarify that or state why my "box" guy stated why it's a positive issue - he says it would "fill all frequencies". Again, I'm no guru so therefore trusting his experience and knowing him to have done a lot of designs in the past that sounded great I will stand by hiim.I do notice you declined to tell us why your box guy thought mixing enclosure types was a positive thing. All you have said is that you trust in his abilities. He should be able to give a plausible answer to the question. He must have had some reason, right?
I know you are taking this as all negative, and sadly for some here thats all it is to them. But alot of this is people in the hobby, looking out for other enthusiasts in the same hobby. Your shop was going to build this guy a poor design, that's simple truth.
You seem friendly to advice, please allow me to give you some. Buy a book called Loudspeaker Design Cookbook, by Vance Dickason. You dont have to learn everything in it, but you own an audio shop... imo its worth a few nights in bed reading it to learn some fundamentals of designing a speaker system. Its considered a valued reference book in the audio field, and honestly... it wont take long looking through it to find the fundamental flaws in your box guy's sealed/ported attempt.
In learning even just the basics, you will be able to know when 'your guy' is BS'ing you, like he is with this sealed/ported nonsense. A little kowledge could go a long way towards improving you, and your business.
Good luck to you.
ALRIGHT - hold up - this is the "owner" as everybody is labeling me. Sorry for the response given to you guys by the Fabricator/Installer but he is just voicing his concerns and speaking up for himself and I can understand. He had no voice until then - I hope all of you can understand how one could feel after being criticized so heavily by othe peers (who mind you are also "experts" in their realm). Like I said and I'll stand by what I said - I trust my "fabricator/installer" BUT I do take all into consideration what you have ALL said and voiced to us regarding installs/enclosures/looks/sound going hand in hand. It's understand and I would like to leave it at that.I find up to a 1:9 ratio is acceptable.
Good point jmanpc, and one I meant to make too but forgot. There is absolutely no reason you cannot build an enclosure that looks good (flashy, refined, futuristic, whatever) and still maintains the proper performance level. Much of this point seems to be based around the slot port box, that when covered with a beauty panel, became 3 small slot ports. To say this was done for aesthetics is ridiculous. 3 small ports looks better than 1 large one? Okay, to some people I suppose. But in doing so, making a judgement call as to what would look better, you altered the port area, and thus possibly tuning (at worst, added port noise at best). So performance was sacrificed, for a 'look' that isn't even necessarily better. Again, all show and no go.
Clearly this shop bases its reputation from feeding off noobs who dont know any better than to question their box expert's advice. No wonder he doesn't like going to message board, he probably doesn't like being told how terrible he is.
I just hope the boss/owner has enough sense to read the book and do a little learning on his own. Then maybe he'll see the lousy knowledge base of the man with whom he is trusting with the repuation of his business. Someone at that shop needs to smarten up, desperately.
Assuming we sold him and "designed" this from scratch was not our intentions - customer came in with all products and asked for it to be done this way...I know, NO EXCUSE BUT customers ask - we'll do. Remember, not everybody is an audio enthusiasts - just form and function for regular Joe.I was pretty disappointed to see Audiobahn in a 350z as well as (though not as bad) RF subs in a 745i
I can agree with that.Assuming we sold him and "designed" this from scratch was not our intentions - customer came in with all products and asked for it to be done this way...I know, NO EXCUSE BUT customers ask - we'll do. Remember, not everybody is an audio enthusiasts - just form and function for regular Joe.
Okay,I find up to a 1:9 ratio is acceptable.
Good point jmanpc, and one I meant to make too but forgot. There is absolutely no reason you cannot build an enclosure that looks good (flashy, refined, futuristic, whatever) and still maintains the proper performance level. Much of this point seems to be based around the slot port box, that when covered with a beauty panel, became 3 small slot ports. To say this was done for aesthetics is ridiculous. 3 small ports looks better than 1 large one? Okay, to some people I suppose. But in doing so, making a judgement call as to what would look better, you altered the port area, and thus possibly tuning (at worst, added port noise at best). So performance was sacrificed, for a 'look' that isn't even necessarily better. Again, all show and no go.
Clearly this shop bases its reputation from feeding off noobs who dont know any better than to question their box expert's advice. No wonder he doesn't like going to message board, he probably doesn't like being told how terrible he is.
I just hope the boss/owner has enough sense to read the book and do a little learning on his own. Then maybe he'll see the lousy knowledge base of the man with whom he is trusting with the repuation of his business. Someone at that shop needs to smarten up, desperately.
Thanks - appreciate the thought in regards to that system. We're just showcasing all work done. Hopefully EVERYBODY doesn't think we sold EVERYTHING on their and DESIGNED it for all these customers. Some if not most of our clients buy their own products - eBay, online or whatever avenue...that's why this industry or at least the sales portion has declined so much! Thanks again!I just find it hard to believe that an installer would recommend an enclosure knowing that it will lead to cancellation, and is not the best setup that can be done with the resources at hand.
I can agree with that.
JMANPC,Like Audioholic said, I was starting to have a little respect for your shop, and then Mr. Installer came along with his condescending attitude. I don't have bionic ears or a widget that insures that I hit my notes correctly... but I do have a basic knowledge of how a sub should sound.
The thing that just BAFFLES me about your work is you keep referencing how you want it to look good. HAVE YOU READ WHAT HAS BEEN SAID OVER AND OVER IN THIS THREAD?! Good looking and good sounding can go hand-in-hand... you just have to know what you're doing. Obviously, you don't know what you're doing, since it seems like you believe the two are mutually exclusive. I've made some ugly, loud boxes, but I've made many more good-looking, loud boxes.
Let me give you a few pointers:
-Don't mix enclosure types. Ever. You should have figured this out my now.
-Don't mix subs. You should probably know this, too... but you don't have a great record. I'll throw that one in for free.
-For daily beating, try to tune to 35hz or lower. (Not 42hz!)
-The rule of thumb is to have 12-15 sq. in. of port per cubic foot for slot-ports
-Another rule of thumb is that the ports length to width ratio should never exceed 8:1
Those are some of the most basic box design rules. You broke #1,3,4, and 5 from just what we have seen in this thread. If this thread were an enclosure building test, you'd have a 20%. Fail.
Points taken - but again like I said, my fabricator is now the focus of "attack" and is just voicing himself. It always comes to pride fellas and I'm just leaving it at that and just to say...there's always somebody smarter, wiser, faster then you - don't always think you're the best!Wow your shop was actually starting to seem just misunderstood but then your installer came in and shot his mouth off. Why do I not build speaker boxes for a living? Because I have goals to make more for my life. Mechanical Engineering pays a lot more buddy. So we have too much time on our hands? Maybe you should make some time to observe the forum and learn how to design a better box. And what baffles me is that these are simple designs! Not some t-line or 6th order!
Yes, true it's his profession, my "fabricator", and like I said - I'll stand by him and his experience as well as my shop and my guys. He's built plenty of great cars and they speak for themselves. If he takes all your comments as advice or "bashings" that's at his discretion. I can't speak for him. I don't question that any of you guys don't know your "car audio". But aside from the enthusiasts remember that not all want a "perfect" sounding system. Granted Steve is the one wanting the "perfect" system for him and it will only come down to him. All these advice/comments hopefully helps everyone else as it is taken by me as advice and/or criticism. I never said I wouldn't take advice or ask for it - I'm simply here to voice what we're all about. I also said and gave my side of the "audio" knowledge I have. I have yet to judge and make assumptions by anybody else here.What gets me is that you just said your designer/fabricator has no time to learn more, yet it is his profession. If you are putting your name out on the line with each setup I would make for **** sure my installer is at the top of his game. You just proved how much he really needs to learn by telling us that he stated a ported and sealed design will "fill all frequencies".
You are making it sound as if it is really not a concern to have a proper enclosure. You are not understanding the point. A show system can sound good if you take the time to design it correctly!!!! It is pretty sad when we are not even making a living from car audio but it is evident that most(not saying myself) that have posted know more about design. Perhaps you could come on with a humble spirit and ask for advice since you willingly admit you do not know as much about the audio side of the spectrum?
I've also used up more than enough energy on this ...but it's for all good reason - to represent JLS fairly and stand in to listen to Steve's concerns. As for all the "technicalities" of building this system for Steve, it comes to what he wants and how my fabricator will work with him. As for sacrificing looks for sound and making that an excuse - it applies to each customer accordingly. Some like the looks, some like sound, and for the ones that go to the extreme of one or the other we'll help out accordingly to the BEST of our abililties! We're always learning and I admit that we can always learn more!I think Ive expended about all the energy I will on this. I doubt anything more constructive will come from this beyond the new box the OP already is getting. But I will say one more thing.
Your shop is not just a parts house, and/or an install shop, people come to you and your fabricator looking for good sound advice (pardon the pun). When you or your guy build a customer a box that has fundamental flaws in the design, that could have sounded better but doesn't... you fail said customer at that responsibility. I guess it makes it okay when your sales people or fabricator convince the customer how good that flawed design sounds? It does not take a golden ear to hear the problems associated with mixing enclosure types. And suggesting it does, proves you do in fact cater to noobs.
You cannot have it both ways, telling us you sacrifice sonic performance for looks, but that your shop caters to knowledgeable clients. Im sure you can see the contradiction there.
At some point responsibility for sending fundamentally sound installs out the door no longer falls on your fabricator's shoulders, or your customer's immediate smile at hearing the product, it falls on YOURS, as the boss. Customers that come to you and your shop are owed a responsibility to give them good advice. Offering a ported/sealed box is failing the customer at that responsibility. Excusing it as 'would have made the customer smile anyway' is a poor excuse.
Good day to you.
Note:I think Ive expended about all the energy I will on this. I doubt anything more constructive will come from this beyond the new box the OP already is getting. But I will say one more thing.
Your shop is not just a parts house, and/or an install shop, people come to you and your fabricator looking for good sound advice (pardon the pun). When you or your guy build a customer a box that has fundamental flaws in the design, that could have sounded better but doesn't... you fail said customer at that responsibility. I guess it makes it okay when your sales people or fabricator convince the customer how good that flawed design sounds? It does not take a golden ear to hear the problems associated with mixing enclosure types. And suggesting it does, proves you do in fact cater to noobs.
You cannot have it both ways, telling us you sacrifice sonic performance for looks, but that your shop caters to knowledgeable clients. Im sure you can see the contradiction there.
At some point responsibility for sending fundamentally sound installs out the door no longer falls on your fabricator's shoulders, or your customer's immediate smile at hearing the product, it falls on YOURS, as the boss. Customers that come to you and your shop are owed a responsibility to give them good advice. Offering a ported/sealed box is failing the customer at that responsibility. Excusing it as 'would have made the customer smile anyway' is a poor excuse.
Good day to you.