Instruction/ maintenance manual of the product 2048 Sound Performance Lab
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Model 2048 Manual P arametric 5-Band Stereo Equalizer.
2 Manual Ster eo Q Model 2048 V ersion 1.0 – 5/2000 R & D: W olfgang Neumann The information in this document has been carefully v erified and is assumed to be correct. Howev er Sound P er formance Lab (SPL) reserves the right to modify the product described in this manual at any time.
3 Co n te n t s Introduction ................................................................................................................... 4 F eatures ..............................................................................................
4 Introduction The Stereo-Q is a parametric 5-band stereo equalizer which ex cels particu- larly in two ways: • It is the first stereo equalizer in its class. • The serial-filter design based on the legendar y QURE equalizer filter gua- rantees the high tonal qualities for which SPL-products hav e become renowned .
5 Hookup • Three fully parametric bands in accordance with the musically effective proportional-Q-pr inciple , Boost/Cut +/- 15 dB, Q 0.5 to 5; LOW band:10-250 Hz, MID band: 140 Hz-3,5 kHz, HIGH band: 940 Hz to 24 kHz.
6 C onnections Rear front/ wiring Console inputs/ stereo returns or inser ts of any equipment 2 1 3 1 = GND , 2 = hot (+), 3 = cold (-) 1 2 3 Pin wiring XLR output Pin wiring XLR input 1 = GND , 2 = h.
7 C onnections General A dvice C onnections Sockets Again, while Stereo Q’ s housing is EMV-proof and protects against HF-inter- ference , placement of the unit is ver y important. Please read hookup instruc- tions first (page 4). Before connecting the the unit or any other equipment turn off all power .
8 Opera tion General A dvice Proportional-Q principle Low-, Mid- and High filters operate to the propor tional-Q principle. This means that maximum possible boost and cut is dependant upon the selected bandwidth. If the bandwidth is increased the measure of boost or cut (=amplitude) decreases automatically with the setting of the Cut/Boost control.
9 Opera tion Po wer , Active , Sub Bass Pow e r The power switch is used to turn the unit on or off . The positive and negativ e paths of the power supply are separated in front of the po wer unit to ensure that the switched off unit is reliably separated from the mains current.
10 Opera tion Low Coils additionally produce a more pleasant harmonic spectrum, which is especially impor tant for the precision and tangibility of bass sounds. The Sub Bass filter is exc eptionally suitable in presenting voluminous and powerful deep bass sound and produces a fat bass layer .
11 Opera tion Mid, High Mid The Mid filter covers a frequency range of 140 Hz to 3.5 kHz (F requency control). The frequency range of the M id filter reaching down to 140 Hz offers a problem-free access to sounds in this range.
Air The Air filter comprises of a passive network of capacitor , resistor and coil in the same way as the Sub Bass filter . I t possesses a so called bell-characteri- stic with a center frequency at 17.5 kHz. At this frequency the maximal possible boost or cut is +/- 9 dB.
13 P o wer Supply Specifications Built around a toroidal transformer , the power supply allows f or a minimal electromagnetic field with no hum or mechanical noise. The pow er supply's output side is filtered by an RC circuit to extract noise and hums caused by your pow er ser vice.
14 Wa r r a n t y SPL electronics GmbH (hereaf ter called SPL) products are warranted only in the countr y where purchased , through the authorized SPL distributor in that country , against defec ts in material or w ork manship .
15 C op y Master Production: ......................................................... Ar tist: ............................................ .......... Date: ........................... Sound Engineer: .................................................
16 Notes ..................................................................... ..................................................................... ..................................................................... ................................
An important point after buying a device Sound Performance Lab 2048 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Sound Performance Lab 2048 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Sound Performance Lab 2048 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Sound Performance Lab 2048 you will learn all the available features of the product, as well as information on its operation. The information that you get Sound Performance Lab 2048 will certainly help you make a decision on the purchase.
If you already are a holder of Sound Performance Lab 2048, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Sound Performance Lab 2048.
However, one of the most important roles played by the user manual is to help in solving problems with Sound Performance Lab 2048. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Sound Performance Lab 2048 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
