Demo Showdown


Demo Showdown is a musical average division of ISPLL. Demo Showdown is a 3 minute average of any music source (with one exception) chosen by the competitor. The score is comprised of one round. The round will be measured at the headrest and in the driver window to collect two scores that will then be averaged. Maximum 60Hz.

Class Matrix


Orange - Cone Area Restricted


1. Competitors are allowed to use publicly available music (no music with solid tones). They may use CD, MP3, iPod, USB, or any other source device. Subsonic Suicide songs are NOT allowed and any music chosen should be a true song (i.e. something you listen to daily or demo frequently).

2. The maximum frequency to be used is 70Hz.

3. Metering will take place on the passenger side headrest and the driver side window (approx. 3-6” outside the vehicle). The driver side window location will be as close to the window opening as the vehicle physically allows (the sensor is placed on a microphone stand standing on the ground outside the vehicle, almost against the door). Only the driver side window and/or passenger side window may be open during the rounds, no doors.

4. Any seat but the passenger seat may be removed during metering.

5. Trunk 1: Cone area <354”

6. No Wall 1: Cone area <708”

7. Maximum charging voltage for classes T1, NW1, and W1 is 15.5V and classes T2, NW2, and W2 is 19.5V.

8. There are no battery limits in any class. ISPLL believes that this unnecessarily restricts the ability of competitors to use their system fully outside of competitions (i.e. demo and daily usage).

9. Engine RPM should not go above 2500RPM consistently during metering.

10. Competitors must wear hearing protection during metering if their vehicle exceeds 150dB.

11. All vehicles must be daily drivable (drive at least 50 miles on one tank of gas and drive the posted speed limit).

14. The NR class will ignore rules 2, 7, and 11. This is the No Rules class and shall only follow the general guidelines of a 4 wheeled form of transportation with normal equipment.