Go Back   DTMPower BMW Forum > DTMPower > Car Audio/ICE
Register FAQ Members List Calendar

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 11-25-2002, 06:37 PM
AC Schnitzer Whore
 
Join Date: Jul 2002
Location: Silver Spring MD
Rides:E46 coupe
Region: USA - Mid-Atlantic
Posts: 345
woobiee is a New Registered Member
How loud is your audio system?:-)

Guys have any idea? I have a chart here that might help:
http://home.new.rr.com/trumpetb/audio/dBexamp.gif

Im in the 120-130 db range hehe.
__________________
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #2 (permalink)  
Old 11-25-2002, 08:19 PM
Jahkesh
 
Join Date: Nov 2001
Location: Socal, LA
Rides:318i
Posts: 280
Jahkesh is a New Registered Member
legal score or outlaw?

i mean i can stick the mic up in the port and ill be 160+ db.

on the dash, legal and ill be much lower.

Ive never been metered but from my guess and experience from hearing other cars at competitions im around the 140-145 db range at dash. This is just an estimate not a legal score.

SQ is more important to me now though....
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #3 (permalink)  
Old 11-26-2002, 11:26 AM
BoominBenz's Avatar
Benz Roller
 
Join Date: Oct 2001
Location: Olympia WA
Rides:Mercedes C280
Region: USA - Pacific Northwest
Posts: 533
BoominBenz is a New Registered Member
My setup is more of an SQ system, but I did have it metered, and I hit 138.6 db. That was with my old box firing backwards. My new box fires forwards (much cleaner and louder and less rattling), but I have yet to have it metered this way.

edit: By the way, my setup consists of:

Premier DEHP-740MP CD player
CDT Audio 4" component sets
CDT Audio rear fill 5.25"
Phoenix Gold Amplifiers
Two Alpine Type R 12" subwoofers (sealed box)


I really like it, and that's all that matters
__________________

Last edited by BoominBenz : 11-26-2002 at 11:28 AM.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #4 (permalink)  
Old 11-27-2002, 05:44 AM
///MWORTHY
 
Join Date: Aug 2002
Location: Scottsdale, AZ
Rides:Highly Modded 320is
Posts: 238
azbimmer82 is a New Registered Member
131 decibals
-----------------
heres the system:
Pioneer 3800 cdplayer
infinity 3x5's
2 Boss 10" in a ported box in the trunk
with a 500 watt boss amp
__________________
MattE21

AZBMW.ORG
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #5 (permalink)  
Old 11-27-2002, 09:43 AM
Master License
 
Join Date: Nov 2002
Location: Dallas, Texas
Rides:97 Nissan Altima
Posts: 8
m3dia_lab is a New Registered Member
Quote:
Originally posted by azbimmer82
131 decibals
-----------------
heres the system:
Pioneer 3800 cdplayer
infinity 3x5's
2 Boss 10" in a ported box in the trunk
with a 500 watt boss amp
trust me you are not hitting 131 with two boss subs, those are pieces of shit!
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #6 (permalink)  
Old 11-27-2002, 09:45 AM
Master License
 
Join Date: Nov 2002
Location: Dallas, Texas
Rides:97 Nissan Altima
Posts: 8
m3dia_lab is a New Registered Member
Quote:
Originally posted by azbimmer82
131 decibals
-----------------
heres the system:
Pioneer 3800 cdplayer
infinity 3x5's
2 Boss 10" in a ported box in the trunk
with a 500 watt boss amp
trust me you are not hitting 131 with two boss subs, those are pieces of shit!
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #7 (permalink)  
Old 11-27-2002, 01:48 PM
///MWORTHY
 
Join Date: Aug 2002
Location: Scottsdale, AZ
Rides:Highly Modded 320is
Posts: 238
azbimmer82 is a New Registered Member
nice doubble post and yes i am
__________________
MattE21

AZBMW.ORG
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #8 (permalink)  
Old 11-27-2002, 03:38 PM
Jahkesh
 
Join Date: Nov 2001
Location: Socal, LA
Rides:318i
Posts: 280
Jahkesh is a New Registered Member
I believe him..

His box is ported; it is possible... his equipment is not mind boggling but getting to 131db doesn’t require mind boggling equipment…

As db get higher it becomes harder to squeeze an extra db out.

Ex:

Going from 100db-120db is very easy.

Going from 140db-160db is much harder.

Since his db levels are low (around 130 db) then they are very easy to obtain.

Let me break it down for you:

Assume his boss woofer's efficiency is around 92db. He has two. That’s +3 db. He is ported. That’s about another +3 db. His amp is probably putting out ~256watts RMS. That’s 2^8 watts.

So take 8*3db = 24db gain from wattage.

92+3+3+24 = 122db

In a car you have about a 12db/octave boost in low frequencies. Normally low frequencies are about 10 db louder in the car when compared to the subs playing a large room. Its called cabin gain.

So, 122db + 10db = 132db.

Wow! Gawd I can’t believe it! Those 2 boss subs actually do have the potential of reaching 131db.

I suggest you do not bash other people’s equipment and say they are lying when in reality you should read up on car audio and have a little bit more knowledge about the subject when posting.

Don’t worry about it azbimmer82, there’s always haterz.

Last edited by Jahkesh : 11-27-2002 at 09:31 PM.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #9 (permalink)  
Old 12-04-2002, 02:57 AM
djstattic's Avatar
Master License
 
Join Date: Sep 2002
Location: somewhere
Rides:el carro
Region: Europe
Posts: 976
djstattic is a New Registered Member
~140 db
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #10 (permalink)  
Old 12-04-2002, 10:49 PM
Master License
 
Join Date: Oct 2001
Location: Oregon
Rides:93 E36 turbo/95 M3/73 Camaro/96 Chevy Dually
Region: USA - Pacific Northwest
Posts: 325
forrest is a New Registered Member
close to 150db
3 Ground Zero Nuclear subs
1 PG ZPA 0.5 to each sub
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #11 (permalink)  
Old 12-07-2002, 07:16 AM
Live And Let Die
 
Join Date: Sep 2002
Location: Finland
Rides:Fiberglass hell; E30 325i Touring
Posts: 126
muggo is a New Registered Member
Quote:
Originally posted by BoominVolvo
My setup is more of an SQ system, but I did have it metered, and I hit 138.6 db. That was with my old box firing backwards. My new box fires forwards (much cleaner and louder and less rattling), but I have yet to have it metered this way.

edit: By the way, my setup consists of:

Premier DEHP-740MP CD player
CDT Audio 4" component sets
CDT Audio rear fill 5.25"
Phoenix Gold Amplifiers
Two Alpine Type R 12" subwoofers (sealed box)


I really like it, and that's all that matters
Damn sweet 240 btw :P (Dad has got few those, now MB W124 250D)
I allmoust bought Amazon, but then i got job from www.kl-varaosat.fi so bmw-parts are so cheap to me. Butbut, mayby i get Amazon as project or something.
__________________
http://www.btcf.fi
Bimmer Tuning Club Finland
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #12 (permalink)  
Old 12-07-2002, 08:47 AM
BoominBenz's Avatar
Benz Roller
 
Join Date: Oct 2001
Location: Olympia WA
Rides:Mercedes C280
Region: USA - Pacific Northwest
Posts: 533
BoominBenz is a New Registered Member
Quote:
Originally posted by muggo


Damn sweet 240 btw :P (Dad has got few those, now MB W124 250D)
I allmoust bought Amazon, but then i got job from www.kl-varaosat.fi so bmw-parts are so cheap to me. Butbut, mayby i get Amazon as project or something.
Thanks
It's a pretty fun car. I'm getting it to handle really well (25mm front and rear sway bars, Koni adjustable shocks, TME sport springs..etc) Only thing it could use is a little more power.
__________________
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #13 (permalink)  
Old 12-07-2002, 10:02 AM
Master License
 
Join Date: Mar 2002
Location: Canada
Rides:85 325e
Posts: 395
BMW BMXer is a New Registered Member
No clue

2 MTX thuder 4000's 10 inch in seperate bandpass boxes
2 5 1/4" infinitys
600w pioneer amp each sub gettin about 200watts
__________________

Why do you think 50 shot his movie in the dot? I'm from the place where murders a warning shot.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #14 (permalink)  
Old 12-09-2002, 02:57 AM
Soopa_Fly's Avatar
Legal Pimp
 
Join Date: Dec 2002
Location: Melbourne
Rides:1994 E36 IS
Posts: 570
Soopa_Fly is a New Registered Member
Im hoping to get about 130. until christmas!! yaY is when i add to my subby!

Head: Pioneer 5250
Front: JL Audio 5.25" VR Evolution Splits
Rear: JL Audio 5.25" 2 Way VR Evolution
Boot: JL Audio 12w0 (1 more for christmas! = 2! YaY!)
Amplifiers: 2 Channel Audioline AL-1400 & 4 Channel Audioline AL-1800
Accessories: Aerpro Cables, RCAs, Power Distributors, Etc.

Hopefully after my new boot set up and custom made box ill be hitting, well HOPING to hit about 150+ (Of SQ!!!). In A ported box that is, running ports up into my parcel shelf.

And remember SQ is what i do.
__________________
SQ Is What I Do



Progress is impossible without change; and those who cannot change their minds cannot change anything - George Bernard Shaw
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
  #15 (permalink)  
Old 12-10-2002, 11:00 PM
icebreaker's Avatar
Kamikazee Pilot
 
Join Date: Dec 2002
Location: Melbourne
Rides:1993 BMW 325i Coupe *sold*
Posts: 454
icebreaker is a New Registered Member
146.6dB with 2 12's and 1 PPI Amp. (Audio Control)
146.6dB with 1 12 and same amp (Kriss Meter)
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 03:52 AM.


Powered by vBulletin® Version 3.6.9
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.1.0 ©2007, Crawlability, Inc.
Integrated by BBpixel Team 2009 :: jvbPlugin R1012.364.2
DTM Power © 2009
Message Board Statistics

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742