NIASCA®

Official affiliate member of IASCA
Netherlands International Auto Sound Challenge Association

Location: 's Hertogenbosch Date: 23 July 1995
Name: Ivo Kroone License number: 18A 4RE Country: The Netherlands
Class: PRO Power class, RMS at 4 Ohms: unlimited Number: P4

Objective test (RTA-SPL): (max. 70 points)
Judges: 1) Rypko M., 2) John V.
Max. score Score
A - SPL, sound pressure level (1 punt for each dB above 100 upto max 130 dB) (Use track 4, "L'Daddy")

30 9
B - RTA, frequency characteristic (1/3rd octave band) (Use track 7, Pink Noise at 90 dB)
                                                               dB
+-----------------------------------------------------------+
0                                                           0  +12
0                                                           0  +9
0      * *                                                  0  +6
0  * *         *   *                                        0  +3
0- - - - - - - - * - * - * - - * * * * - - - - - - - - - - -0  +0
0          * *               *         *         *         *0  -3
0                      *   *             * * *     * * * *  0  -6
0                                              *            0  -9
0                                                           0  -12
+^-----^-----^-----^-----^-----^-----^-----^-----^-----^---^+
 25    50   100   200   400   800  1.6K  3.15K 6.3K 12.5K 20K

MAJOR DEVIATIONS : 25Hz      to      31.6Hz     : -09 Pts
MINOR DEVIATIONS : 
                 : 63Hz      to      80Hz        : -1 pt
                 : 100Hz     to      125Hz       : -1 pt
                 : 250Hz     to      315Hz       : -1 pt
                 : 315Hz     to      400Hz       : -1 pt
                 : 400Hz     to      500Hz       : -1 pt
                 : 5KHz      to      6.3KHz      : -1 pt
                                                 -------
                                                  -15 Pts
Frequency Response Score                           40
                                                  -15
                                                  ------
                                                  +25
40 25
Total objective part: 34

Sound quality: (max 200 points)
Judges: 1) Arjan de Jagh, 2) Johan Weeda
Max. score Score
C - Staging, place of the sound

(Use track 9, "Hanky Panky")
  • Front Stage/Rear Fill = 25 to 40
  • Rear Stage / Front Fill = 3 to 9
  • Front Stage or Center Stage only = 10 to 24
  • Rear Stage Only = 0 to 2

Comment: Too much rear fill, affects podium depth in front.
Podium very wide, OK!

40 26
D - Stereo Imaging (Use track 11, "Ain't No Cure For Love")

  • Clear left/right separation, good depth, extra from center = 25 to 40
  • Clear separation between left/right channel = 10 to 24
  • Left or right emphasis = 1 to 9
  • Mono, no separation between left and right = 0
Comment: Center focus missing
Stereo image disturbed by rear fill
40 25
E - Frequency separation and clarity

(Use track 13, "Heat of the Moment")
Sub bass = 0 to 10 : 5 Mid bass = 0 to 10 : 6
Mid range = 0 to 10 : 5 High range = 0 to 10 : 5
Comment: Subwoofer sometimes audiable in the back. Mid good.
Midbass OK, high good.
40 21
F - Sound linearity (Use track 16, "Bright Lights")

Low volume (80 dB) ; balance between high/mid/low = 0 to 10 6
High volume (105 dB) ; balance between high/mid/low = 0 to 10 7

Comment:Very good!

20 13
G - Absence of Noise (Use tracks 18, "0 Bit" and 75 "Desert Rain")

"ZERO BIT"SYSTEMVEHICLE
Inaudiable at any volume = 10NOYES
Hardly audiable at max volume = 8NONO
Hardly audiable at half volume = 6YESNO
Hardly audiable at no volume = 4NONO
Hardly audiable at max volume = 2NONO
Clearly audiable at any volume = 0NONO

"DESERT RAIN"SYSTEMVEHICLE
No noise at normal volume = 10YESYES
Hardly extra noise at normal volume = 5NONO
Clearly extra noise at normal volume = 0NONO

Comment: Amp generates thump at power on

40 36
H - Ergonomics 1 to 5 BONUSPOINTS for easy usage

  • System easy to reach and safe to operate = 15
  • System easy to reach but hard to operate = 12
  • System each to operate but hard to reach = 9
  • Systeam hard to reach and operate = 6

  • Bonus = 0 to 5

Comment: Standard

20 15
Total sound quality: 136

Installation: (max 165 points)
Judges: 1) Iwan, 2) Herman
Max. score Score
I - Wiring cosmetics

Correct wiring0
Wiring under bonnet5
Amplifier wiring0
Wiring correctly fused0
Correct wire diameter5
Wiring corretly protected0
Wiring invisible5
Comment: Fasten fuseblock and distribution block better
Arrange orderly cabling

35 15
J - Cosmic integration

Headunit stock/highlight 0 to 10 : 4 Amplifiers stock/highlight 0 to 10 : 2
Loudspeakers stock/highlight 0 to 10 : 2 Signal processors stock/highlight 0 to 10 : 5
Comment: Stock? Amplifiers on back seat, see manual
Speaker grill and housing don't match each other or interior
40 13
K - Component Installation Integrity

Headunit = 0 to 10 : 4 Amplifiers = 0 to 10 : 4
Loudspeakers = 0 to 25 : 15 Signal processors = 0 to 10 : 5
Comment: Head unit not flush mounted with dashboard
Subbox fastening can be improved
55 28
L - General creativity BONUS POINTS (0 points = average creativity)

Unique ideas to improve sound quality = 0 to 10 0
Unique ideas as to installation = 0 to 10 0

Comment:

20 0
M - Attention for details

Interior = 0 to 5 2
Boot and storage space = 0 to 5 1
Engine room = 0 to 5 1

Comment: Final details can be improved

15 4
Total installation: 60

RTA-SPL = 34 SOUNDQUALITY = 131 INSTALLATION = 60 TOTAL SCORE 435 230


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