User manual ROTEL RA-1312

[. . . ] In the event your speakers are rated at 4 ohms or lower than desired 8 ohms, you may operate with one pair of such type of speakers at a time but never two pairs of speaker system simultaneously. This measure is to prevent any severe over load and distortions from happening due basically to too low impedance to draw excessively high current. When you are uncertain on your speakers rating values, consult with the dealer or store you purchased. B) Connection - Before connecting speaker leads to the terminals on appliance, make sure no loose stray strands of wire are left in order to prevent any shorting between speaker leads or terminals to main chassis. [. . . ] Your tape recorder can be a reel-ta-reel deck, a cassette recorder deck or a 8-track cartridge recorder deck_ If the tape recorder comes with RCA-t'{pe plugs, connect input cables to corresponding TAPE MONITOR jacks marked OUT and output cables to the jacks marked IN. Input jacks IN are for playing back pre-recorded tapes and output jacks OUT are for record ing programs such as broadcasts, records and live sounds. If the tape recorder comes with DIN plug, simply connect it to the DIN socket marked REC/PB at TAPE MONITOR. If in any doubt about connecting to the power source, consult a qualified electrician. And your unit comes with 3-core cord without a plug, be sure to read the page 5 of this manual before connec ting to power. If your unit comes with a 3· Core cable without a plug, make certain live, neutral and (where appropriate) earth leads are connected to the proper terminals. Check that the terminals are screwed down firmly and no loose strands of wore are present. INPORTANT; The wires in this mains lead are coloured in accordance with the follow ing code: GREENIYELLOW: EARTH BLUE: NEUTRAL BROWN: LIVE As the colours of the wires in the mains lead os this apparatus may not correspond with the coloured markings identifying the termi nals in your plug proceed as follows. The wire which is coloured GRE EN/ YELLOW must be connected to the termi nal in the plug which is marked by the letter E or by the safety earth symbol , or coloured GREEN/YELLOW' The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLUE or BLACK. The wire which is coloured BROWN must be connected to the terminal wh ich is marked with the letter L or coloured BROWN or RED. the apparatus must be protected by a 3 Amp fuse if a 13 Amp (BS 1363) plug is used. If another type of plug is used a 5 Amp fuse or lower must be used, either in the plug or adapter or at the distribution board. NOTE: Sound will not come out for about 10 seconds due to the relay protection circuit used to prevent loud pop noise when the switch is pushed ON. F) SPEAKER SWiTCHES - allows you to select your speaker systems for activation. push in A to activate the speaker systems connected to SPEAKER A terminals on the rear panel , and so on for B switches. $HEADPHONES JACK - simply plug in your stereo headphones lead to the recept· Acle for private listening, Push OFF the speaker switches if you are listening to the headphones only. BASS CONTROL - regulates low fre quency sounds, as desired, to suit personal taste, speaker characteristics, etc. BASS TURNOVER SWITCH - allows you to defeat the bass control by setting at OUT, or let you select two frequency ranges (so· Called roll-off curves) at low frequencies at which bass control will be effected. TREBLE TURNOVER SWITCH al lows you to defeat the treble control by set ting at OUT for a flat response, or let you select two frequency ranges at high frequen cies at which treble control will be effected. LOW FILTERS - allows you to reduce the low frequency response whenever you wish to minimize annoying record and tape rumbles, etc. "30Hz" is for normal cut, and "15Hz" is actually a subsonic filter which cuts out undersirable noise characteristics which may exist on subsonic frequencies. However, normally leave the switch OUT for optimum frquency reproduction. [. . . ] Caution: If the unit does not operate, or if it becomes inoperative with in a short time, consult your dealer or a ROTEL service center. This equipment is protected by a special electronic resettable protection circuit and the fuses installed inside the chassis. If the unit fails to operate when plugged in and turned on or if it suddenly becomes com pletely inoperative while playing (i . One or both speakers are silent regardless of speaker switches and function selector control position), the protection circuit is probably activated due to an overload condition such as shorting by stranded speaker wires at the speaker terminals. [. . . ]