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by Brian Steele
April 16th, 2019, 9:54 am
Forum: I.C.E. / Car Audio Tech
Topic: what is a "best bang for your buck" 6.5 speaker?
Replies: 5
Views: 184

Re: what is a "best bang for your buck" 6.5 speaker?

I've used the Silver-Flute 6.5s and I'm now using Dayton Audio RS170s. The latter is basically a 6.5" driver with a wider mounting flange. Both are great for the price, particularly if you're going to use them in an active system crossed over at 2.5kHz. For my car, below about 160 Hz or so the ...
by Brian Steele
March 5th, 2019, 6:38 pm
Forum: I.C.E. / Car Audio Tech
Topic: Strange loss of bass
Replies: 29
Views: 1399

Re: Strange loss of bass

It was kicks when my cousin who had 1 10" on a boss 750 with 4 gauge wire, stock alt and ah single small water battery sounded the same as me when i had the 712 on the powerbass 1500.1 with my electrical upgraded. Going from a 750W amp to a 1500W amp adds only 3dB of output - something that ca...
by Brian Steele
March 5th, 2019, 6:25 pm
Forum: I.C.E. / Car Audio Tech
Topic: Strange loss of bass
Replies: 29
Views: 1399

Re: Strange loss of bass

you may need to stop those leaks (some metal sheeting work required ) and dynamat the trunk 7UjClvem2-0 Alas, no before & after measurements to show show successful all of that work was to improve the sound in the vehicle. That's one of the main reasons why I find it difficult at times to take ...
by Brian Steele
February 16th, 2019, 9:09 am
Forum: I.C.E. / Car Audio Tech
Topic: passive crossover question.
Replies: 5
Views: 552

Re: passive crossover question.

Car audio passive x-overs tend to be fairly generic. Check to see if the values of the components in type X passive x-over are the same in the one that you want to replace. If they're the same, then there shouldn't be a problem swapping them.
by Brian Steele
December 17th, 2018, 9:59 am
Forum: I.C.E. / Car Audio Tech
Topic: Pvc board
Replies: 11
Views: 1316

Re: Pvc board

For an alternative, look for "Starboard" at shop that deals with boat repairs, etc. Expensive, no glue will hold on it, but you can get it in various thicknesses. I'm about to use a piece to redo the wooden speaker adapters I have in my car. Let's just say that, even with a few coats of pa...
by Brian Steele
December 12th, 2018, 11:53 pm
Forum: I.C.E. / Car Audio Tech
Topic: Amp tripping issues
Replies: 13
Views: 1147

Re: Amp tripping issues

Amps trip when the current flow is too high, which suggests that something is shorting somewhere when the speaker is fed more power.

WAG: Check the tinsel leads connecting the terminals to the voice coils, to see if they're too close to each other (if they touch, they will short).
by Brian Steele
December 12th, 2018, 11:43 pm
Forum: I.C.E. / Car Audio Tech
Topic: Anyone using condensers?
Replies: 9
Views: 972

Re: Anyone using condensers?

A "condenser", or capacitor as it's more commonly known, is a theoretical 6dB/octave highpass filter - the higher its value, the more low frequencies get through. Thing is, speakers do not have a flat impedance, so the response curve you end up with might be quite different to what you exp...
by Brian Steele
November 20th, 2018, 10:22 pm
Forum: I.C.E. / Car Audio Tech
Topic: Subwoofer for small space?
Replies: 37
Views: 3240

Re: Subwoofer for small space?

0.5xPi wouldn't be the space in this application? Some people use 0.5PI modelling to get an idea of what the in-car SPL might be like. I prefer to stick to 2PI @ 2.83V for most of the models, for easy comparison with other modeling programs. As you can see below, switching to 0.5PI does not really ...
by Brian Steele
November 20th, 2018, 10:18 pm
Forum: I.C.E. / Car Audio Tech
Topic: Subwoofer for small space?
Replies: 37
Views: 3240

Re: Subwoofer for small space?

https://www.parts-express.com/dayton-au ... r--295-463

Should work quite well in a 0.6 cu.ft. sealed box. Well, you won't be knocking down any buildings with it, but predicted response curve looks nice for a car audio box...

2018-11-20.png
by Brian Steele
November 19th, 2018, 8:27 pm
Forum: I.C.E. / Car Audio Tech
Topic: Subwoofer for small space?
Replies: 37
Views: 3240

Re: Subwoofer for small space?

If possible, can you post a graph that takes Le into account? I'm familiar with using BB6, but I've heard that Hornresp is more accurate. At least we can then see how it compares to the BB6 model. Unfortunately Le isn't provided with the published specs for that driver. It's likely somewhere around...
by Brian Steele
November 19th, 2018, 12:13 am
Forum: I.C.E. / Car Audio Tech
Topic: Subwoofer for small space?
Replies: 37
Views: 3240

Re: Subwoofer for small space?

Two plots here One for In car. The other for out of car response. The actual response is not going to look anything like that. It looks like not even the impact of Le is taken into consideration in that plot, and Le is going to be pretty high, unless the subwoofer has a really good motor that's des...
by Brian Steele
November 8th, 2018, 12:13 am
Forum: I.C.E. / Car Audio Tech
Topic: Sub enclosure build
Replies: 50
Views: 4878

Re: Sub enclosure build

Duratex.

Carpet looks ratty after awhile, and leather will get scuffed and damaged if you use the trunk to hold anything else.
by Brian Steele
November 5th, 2018, 12:28 am
Forum: I.C.E. / Car Audio Tech
Topic: full active?
Replies: 23
Views: 2209

Re: full active?

NB1 (TOO harsh, bright and hissy, sounded like a blasted maxi) Orion XTR dome (harsh-ish but hits some nice notes) Nakamichi - best sounding IMO but too large to fit in factory location Cadence - Muted. Wanted more "brightness". For a lark, I tried using that first set (or a clone of it) ...
by Brian Steele
October 24th, 2018, 6:54 am
Forum: I.C.E. / Car Audio Tech
Topic: Sub enclosure build
Replies: 50
Views: 4878

Re: Sub enclosure build

SR wrote:Not mines but hoping to see builds like this...FB_IMG_1540322542237.jpeg


I'm curious about the choice of MDF instead of good ply for a build like that. MDF is heavier and the slightest bit of dampness can screw up the box. Allyu didn't just suffer from flooding? :)
by Brian Steele
October 15th, 2018, 5:07 pm
Forum: I.C.E. / Car Audio Tech
Topic: full active?
Replies: 23
Views: 2209

Re: full active?

I've tried with and without rearfill. In my car, using rearfill gives better results, particularly when properly time-aligned and filtered (in my case, filtering starts at 200 Hz, 6dB/Octave).
by Brian Steele
September 21st, 2018, 1:16 pm
Forum: I.C.E. / Car Audio Tech
Topic: Replacement deck for Daihatsu Terios (2007)
Replies: 4
Views: 1194

Re: Replacement deck for Daihatsu Terios (2007)

OEM HU. The ones to the left were not connected.
by Brian Steele
September 20th, 2018, 10:09 pm
Forum: I.C.E. / Car Audio Tech
Topic: Replacement deck for Daihatsu Terios (2007)
Replies: 4
Views: 1194

Replacement deck for Daihatsu Terios (2007)

Hi Everyone, I'm looking to replace the stock radio in my wife's old car, a Daihatsu Terios (2007 model). I plan to purchase it from Sonic Electronix, as they will provide an adapter for the stock wiring harness for free with the purchase. However, the Terios isn't listed in its vehicle database. I ...
by Brian Steele
September 17th, 2018, 11:53 pm
Forum: I.C.E. / Car Audio Tech
Topic: Post Your Home Reference System
Replies: 8
Views: 1590

Re: Post Your Home Reference System

I have a really good pair of front speakers for my home system, Mission 751s, so I haven't had the impetus to build my own. Every now and then I think about redesigning the x-over, then convince myself that it's not really worth it. The surround speakers are an old pair of Mordaunt Short MS3.1s with...
by Brian Steele
September 13th, 2018, 8:49 pm
Forum: I.C.E. / Car Audio Tech
Topic: 2018 lancer build
Replies: 89
Views: 9763

Re: 2018 lancer build

jusrocky wrote:https://youtu.be/PPGqUjQ9tsQ

Video [emoji115]


Nice-looking clean installation there. Great work.
by Brian Steele
September 13th, 2018, 6:36 pm
Forum: I.C.E. / Car Audio Tech
Topic: Small everyday system
Replies: 109
Views: 12806

Re: Small everyday system

Round off the edges of the board exposed in the port itself to match the flow created by the 45degree inserts in the port It's a resonant system - air won't (or shouldn't) be flowing through the vent, but vibrating inside of it. As such the 45 degree chamfers in the vent are not required and actual...
by Brian Steele
September 3rd, 2018, 5:20 pm
Forum: I.C.E. / Car Audio Tech
Topic: van catch on fire at small car show
Replies: 5
Views: 1721

Re: van catch on fire at small car show

Sudden and hard vibration can also aggravate a lithium battery. Went over any deep potholes recently? :-)
by Brian Steele
June 25th, 2018, 1:00 am
Forum: I.C.E. / Car Audio Tech
Topic: Jl tw3 12 or sundown SD3 12 for shallow box SQ?
Replies: 11
Views: 2622

Re: Jl tw3 12 or sundown SD3 12 for shallow box SQ?

if u wanna try something diff http://stereointegrity.com/product/bm-mk-v-12-subwoofer/ I've been keeping an eye on that particular one, waiting for actual performance measurements from 3rd party users. The motor, if I'm not mistaken, is designed by, or based on one designed by Dan Wiggins, who gave...
by Brian Steele
June 16th, 2018, 8:16 pm
Forum: I.C.E. / Car Audio Tech
Topic: DIY powered sub? or Budget options
Replies: 33
Views: 4315

Re: DIY powered sub? or Budget options

nervewrecker wrote:If the wife eh complain you eh do it right


Yup, isn't that always the case? :)
by Brian Steele
June 16th, 2018, 1:06 pm
Forum: I.C.E. / Car Audio Tech
Topic: DIY powered sub? or Budget options
Replies: 33
Views: 4315

Re: DIY powered sub? or Budget options

Powered sub = all eggs in one basket.
by Brian Steele
June 16th, 2018, 12:56 pm
Forum: I.C.E. / Car Audio Tech
Topic: IASCA in Grenada..?
Replies: 4
Views: 1670

Re: IASCA in Grenada..?

Oh, some more pictures here on my FB page, though not much emphasis on the car audio part. I didn't stick around for the SPL tests - the flu and the hot sun got the better of me.

https://www.facebook.com/brian.steele1/ ... 018&type=3
by Brian Steele
June 16th, 2018, 12:41 pm
Forum: I.C.E. / Car Audio Tech
Topic: IASCA in Grenada..?
Replies: 4
Views: 1670

Re: IASCA in Grenada..?

Yes we were invited by the promoter and currently working with them to have grenada registered under iasca caribbean as well as conduct competitor and judges training soon. Was a very good event some people seemed shy to compete. We did some coverage and pics are posted on iasca caribbeans fb page....
by Brian Steele
June 10th, 2018, 11:14 pm
Forum: I.C.E. / Car Audio Tech
Topic: IASCA in Grenada..?
Replies: 4
Views: 1670

IASCA in Grenada..?

Looks like there were two trini IASCA officials up here for the SP's International car show that was held this weekend. Looks like they knew their stuff. Pity no-one showed up in time for the sound quality part of the competition though. Grenadians... some of them would be late for their own funeral...
by Brian Steele
May 17th, 2018, 6:44 pm
Forum: I.C.E. / Car Audio Tech
Topic: This making sense orrr ? .....
Replies: 9
Views: 2715

Re: This making sense orrr ? .....

Well, that's one way to beat the "speakers must actually be installed in the car" rule...
by Brian Steele
April 18th, 2018, 9:01 pm
Forum: I.C.E. / Car Audio Tech
Topic: Exodus Anarchy, 554 Mids
Replies: 10
Views: 2392

Re: Exodus Anarchy, 554 Mids

The 7" version of the Anarchy driver has a rated sensitivity of 86.5dB. The 5" version is likely to have a lower sensitivity. In comparison the sensitivity of the SF 6.5" driver is 91.5dB. That suggests that the Anarchy driver is going to require 3 times the power to achieve the same ...
by Brian Steele
April 17th, 2018, 9:21 pm
Forum: I.C.E. / Car Audio Tech
Topic: Exodus Anarchy, 554 Mids
Replies: 10
Views: 2392

Re: Exodus Anarchy, 554 Mids

Link not working btw brian. Have me curious as to what it is you been eyeing. I'm not sure why it's not working for you. Look up "Tang Band W6-1721" on the Parts Express website. I always measure the t/s parameters (and in the case of drivers designed for duty above 80 Hz, frequency respo...

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