User manual YAMAHA PSS-12

[. . . ] Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. [. . . ] In order to take full advantage of the PSS-12's functionality and to ensure trouble-free operation, please read this owner's manual carefully before use. After you have read the manual, keep it in a safe place for reference when needed. Features Space-saving high-efficiency multi-channel 200W@4 x 8 power amplifier Switchable between STEREO/PARALLEL/BRIDGE modes as needed for your application Euroblock input jacks and barrier strip output jacks for easy installation High-pass filter with switchable cutoff frequency (20 Hz / 55 Hz) Input sensitivity / gain select switch switchable between three positions (+4 dBu, 26 dB, 32 dB) Precautions when rack-mounting the unit Operation of this device is guaranteed for an environmental temperature range of 0 ­ 40°C. If you are mounting only this device in an EIA standard rack, you may mount multiple units without leaving a space between them. If you are mounting this device along with other types of device in an EIA standard rack, the ambient temperature inside the rack may rise due to heat produced from the other devices, preventing this device from performing as designed. To ensure that heat does not build up inside this device, you must observe the following conditions when mounting it in a rack. · If you mount this device in a rack together with heat-generating devices such as power amps made by other companies, you must leave 1U or more space between this device and other devices. You should also install a ventilation panel in this space or leave it open to ensure adequate ventilation. · Leave the back of the rack open, and allow 10 cm or more distance between the rack and the wall or ceiling to ensure adequate ventilation. If you are unable to leave the back of the rack open, you must install a commercially available fan kit or other forced air circulating system to the rack. If you have installed a fan kit, there may be cases in which closing the back of the rack will provide better cooling. For details, refer to the instructions that came with the rack system or fan kit. PSS-12 Owner's Manual 5 Contents Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . · Do not connect the pin marked NC located in the center of the bottom row of the barrier strip connectors. t HPF switch Turns the high pass filter (20 Hz or 55 Hz) on/off. If this is set to 20 Hz or 55 Hz, the frequency components below that frequency will be cut by a 12 dB/oct. y Ground screw Hum and interference may be reduced in some cases by connecting the screw to an ground or to the chassis of the mixer, preamp, or other device in your system. u AC inlet Connect this to the socket end of the included AC power cable . Connect the plug end of the AC power cable to an AC outlet of the correct voltage. · If this device is to be rack mounted and transported frequently, be sure to support the rear end of the unit with mounting hardware that matches the size of the rack used. CAUTION e MODE switches These specify the amplifier's operation mode for each two channels. · STEREO mode Each channel (A­H) will operate independently. · BRIDGE mode The amplifiers will be bridged for pairs of adjacent channels (A-B, C-D, E-F, G-H), obtaining a high-power output. · PARALLEL mode The input signals will be input to the adjacent channels (A-B, C-D, E-F, G-H) as well. 8 PSS-12 Owner's Manual Mode settings Speakers can be connected to the PSS-12 using the following three mode settings. The total load impedance of the speakers that can be connected will depend on the mode setting. Do not use a setup that has a lower impedance than the minimum values shown below. STEREO mode If the rear panel MODE switch is set to STEREO, each channel will operate independently. You can use the front panel attenuators to adjust the attenuation for each channel independently. BRIDGE mode If the rear panel MODE switch is set to BRIDGE, the amplifiers will be bridged between adjacent pairs of channels (AB, C-D, E-F, G-H), and the PSS-12 will operate as a highpower amplifier. [. . . ] Per ulteriori informazioni sulla raccolta e il riciclaggio di vecchi prodotti, prego contatti la Sua amministrazione comunale locale, il Suo servizio di smaltimento dei rifiuti o il punto vendita dove Lei ha acquistato gli articoli. [Per utenti imprenditori dell'Unione europea] Se Lei desidera disfarsi di attrezzatura elettrica ed elettronica, prego contatti il Suo rivenditore o fornitore per ulteriori informazioni. [Informazioni sullo smaltimento negli altri Paesi al di fuori dell'Unione europea] Questo simbolo è validi solamente nell'Unione europea. Se Lei desidera disfarsi di questi articoli, prego contatti le Sue autorità locali o il rivenditore e richieda la corretta modalità di smaltimento. 62 PSS-12 Owner's Manual For details of products, please contact your nearest Yamaha representative or the authorized distributor listed below. Die Einzelheiten zu Produkten sind bei Ihrer unten aufgeführten Niederlassung und bei Yamaha Vertragshändlern in den jeweiligen Bestimmungsländern erhältlich. Pour plus de détails sur les produits, veuillez-vous adresser à Yamaha ou au distributeur le plus proche de vous figurant dans la liste suivante. Para detalles sobre productos, contacte su tienda Yamaha más cercana o el distribuidor autorizado que se lista debajo. [. . . ]