BSR EQ-3000 Owner'S Manual Download | Manualshive

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Summary of Contents for EQ-3000

Page 1: ...Stereo Frequency Equalizer Manual WARNING To preventfire or shock hazard do not expose this applianceto rain or moisture ...

Page 2: ... Warnings All warnings on the appliance and in the operating instructions should be adhered to 4 Follow Instructions All operating and use in structions should be followed 5 Water and Moisture The appliance should not be used near water for example near a bathtub wash bowl kitchen sink laundry tub in a wet basement or near a swimming pool etc 6 Carts and Stands The appliance should be used only wi...

Page 3: ...t providing the prop er AC voltage The power consumed is 20W and if avai lable the switched accessory outlet of your amplifier may be used to turn the unit on or off with your sound system s mair power switch Important before operating the equalizer All equalizers are designed for unity gain in other words the level of signal output is the same as the level of signal input when all frequency contr...

Page 4: ...supplied with the unit Power requirements AC OUTLET UNSWITCHEO Power requirements for electrical equipment differ from The AC OUTLET receptacle may be used to power asso area to area Please ensure that your machine meets the ciated equipment Plug the power plug from the asso power requirements in your area If in doubt consult a ciated equipment into this receptacle qualified electrician Important ...

Page 5: ...eck input jacks on your amplifier or receiver marked as TAPE PLAY or TAPE MONITOR etc 2 Tape decWrecorder The EQ 3000 IS equipped with two inputs outputs for connection of up to two tape decks TkPE 1 and TAPE 2 Connect the IN PLAY jacks to the play back output of the tape deck marked LlNE OUT or MONITOR etc Connect the OUT REC jacks to the recording input jacks of the tape deck marked LlNE IN or R...

Page 6: ...GHT FREQUENCY Hz dB levelcontrols Operates in the same manner as the LEFT FREOUENCY 0 Hz dB level controls except that these controls provide adjustment of the right channel level MICjack Depress the LINE MIC button to MIC and this is the microphone input of the spectrum analuzer and where you connect the microphone supplied with the equalizer Connect the microphone supplied only as the use of ot ...

Page 7: ...f your preamplifier etc is equipped with a REC OUT selector first set the input selector on the preamplifier etc to the tape monitor position and set the REG OUT selector to the position which selects the programsource you desireto makeanequalization Typical control settings Release unless disturbing low frequency noises are present Release Set to L R Release oft AT T DUBBING MONITOR SWR l L l W E...

Page 8: ... TAPE 1 deck and TAPE 2 deck as the decks connected to the TAPE 1 jacks and the TAPE 2 jacks To listen to TAPE 1 I DUBBING YONITOR Om b To use the FREQUENCY level controls refer to page 14 Start playing the tape deck To listento TAPE 2 I DUBBING MONlT R qumEL ...

Page 9: ... To make an equalized recording Usethis feature when recording from a poor quality program source otd records etc SPECTRUM ANALYZER Monitor DUBBING MOHlMR st fi 7 z m2 TAPE APE I vTAPE 2 deck Monitoringthe recording If the tape deck employs independent record and playback heads a true tape mcnitoring will be possible Th s wrll ena ble youto hear the program actually on the tape afraction of a seco...

Page 10: ...ALY TAPE t deck TAPE 2 deck Man tar Equal zer LiNE OUT F d U U U I A I I I To make an equalized dubbing Depress the REC button to switch the equalizer in between TAPE 1 and TAPE 2 a Set the DUBBING and MONITOR swltches as nstlucted above I d Equalizer r dL 4 SPECTRUM ANALYZER I playback recording TAPE 1 or TAPE 2 deck TAPE 2 or TAPE 1 deck Note During dubbing process listening to LlNE input progra...

Page 11: ... program from the preampl fier etc HLINE El AMIC To analyze the program as tIS played in the Irs tening LLHE Fi 1 Plug the microphone Into the MIC jack The microphone should be placed at a convenient location in the room For the most accurate measurement of frequency re sponse the microphone should be placed in a typical listening lo cation and the grille should be aimed at a point midway between ...

Page 12: ... of all ten bands for each channel The appropriate control should be raised to increase level orlo weredto decrease level in a given band More than one control may be moved at one time If thelevel of the marked frequency is too high on the dis play slide the corresponding FREQUENCY level control downward toward 15 If it is too low slide the control upward toward 15 Caution Very high levels of pink...

Page 13: ...es of pink noise on both channels METER HOLD SPECTRUM ANALYZER METER SENSE ATT DUBBiHG MONITOR RIGHT EO REC 1bw2 1 SOURCE T A P E l r E 2 SOURCE Release the PINK NOISE button MONITOR Set to the position SOURCE which selects the T P E I tape deck output and playback the pink noise e g I I METER SEHSE I Adjust roughly to center the indicators on the d spiay About the pink noise An approximate freque...

Page 14: ...ed only by their funda mental frequency output black bands they would all sound alike It is the harmonics or overtones grey bands that give each individual instrument its character or timbre and set it apart from the rest Interestingly enough the human ear is more sensitive to certa n octaves in the musical spectrum than to others Whoever designed this engineering marvel deemed it ne cessary to tu...

Page 15: ...n this range to ef fect a quality of presence to the music Too much en ergy on the other hand sounds overbearingly harsh and strident A good balance should be achieved between this and a more muffled sound The high end approx 5 200 20 000 Hz The region up to only about 12 kHz or so is what is normally per ceived as high frequencies Adjustment in this range af fects the brilliance of music with too...

Page 16: ...process 1 SPECTRUM DISPLAY I MI C M C Amp I L I I TH L R f i I 1 IN I I I I I OUT m ouT Ro I I 1 I I I I I I 0 1 Other Ch L SOURCE 2 0 TAPE I I I I I I I I I 0 1 2 1 I I I I I I I IN n V I I TAPE 2 o 1 3 OUT IN I ...

Page 17: ... 10 over 2 k to 16 kHz 5 Frequency response from LINE IN 30 to 16 kHz k 0 5 dB Frequenvy response with microphone supplied 30 to 16 kHz 3 dB Peakhold duration continuous lnput impedance MIC jack 2 2 kohm lnput sensitivity MlC jack 0 5 mV lnput sensitivity LlNE IN 150 rnV Pink noise generator output I 0 0 rnv Pink noise frequency over 20 to 20 000 Hz response k 2 dB RMS Element t v e Electret conde...

Page 18: ...eglect accident in correct wiring not out own or to use inviolation of operating nstructions furnished by us nor extend to any units altered or repaired for warranty defect by anyone other than an authorizedservice agency This warranty does not cover any incidental or conse quential damages and is in lieu of all other warranties ex pressedor implied and no representativeor personis auth orized to ...

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