Velleman VDSPRO18B - Manual (Page 4)

VDSPRO18B 4 VELLEMAN
• When installing the system on stage always try to install your sound system located behind the speakers to
avoid unpleasant feedbacks.
• In order to have a good quality sound the system should be installed that they throw the sound over the
audience’s head. A full range of speakers system should be installed at listeners’ eye level (see “Legal
Provisions”).
• Always install the system in a way that there is a minimum distance of 3m between the speakers and the
audience.
9. Output System Connection
2 x 2-way or full-range speakers + 2 x 18” subwoofers.
10. Cleaning and Maintenance
1. All screws should be tightened and free of corrosion.
2. The housing, visible parts, mounting supports and the installation location (e.g. ceiling, suspension, trussing)
should not be deformed, modified or tampered with e.g. do not drill extra holes in mounting supports, do not
change the location of the connections …
3. Moving mechanic parts must not show any signs of wear and tear.
4. The electric power supply cables must not show any damage. Have a qualified technician maintain the device.
5. Disconnect the device from the mains prior to maintenance activities.
6. Wipe the device regularly with a moist, lint-free cloth. Do not use alcohol or solvents.
7. There are no user-serviceable parts.
8. Contact your dealer for spare parts if necessary.
11. Technical Specifications
Drivers
Woofer 18”, cast aluminium basket, paper cone
Input Power Capacity 600W rms (continuous), 1200W
Input Connectors 4-pole Neutrik ® Speakon ® , order code NL4FX
Nominal Impedance 8 ohms
Frequency Response 35 ~ 300Hz
Max. Sound Pressure Level 133dB
Recommended Low-pass Filter (LPF)
≤ 300Hz
Recommended Filter Slope
≥ 3
rd order (-18dB / octave LPF)
Dimensions 480 x 790 x 440mm
Weight 52kg
For the SPL vs. frequency table, see the end of this manual.
The information in this manual is subject to change without prior notice.