PYLE Audio PPEQ-86 User's Manual
Contents
1. PYLE lt PRO 24 CONTROLS 12 BAND STEREO GRAPHIC EQUALIZER MODEL PPEQ 86 OWNER S MANUAL INTRODUCTION PPEQ 86 narrow band frequency balance controls provide an infinite frequency response variations to allow you matching your speakers to your room reducing or eliminating inadequacies in your high fidelity music system tailoring the reproduction of music in accordance to your choice PPEQ 86 can enhance your sound system in the following ways Any system suffering from rumble or low frequency overload can be remendied by attenauting the lowermost controls of the equalizer With little in the way of fundamentals below 30Hz it is unlikely you will miss any of the music Noises due to the scratches on the record surface or even the hiss on the tape can be eleminated or reduced by bringing down the control level at 9 KHz Even Dolby processed tape or encoded FM Broadcasts can be compensated for the boosted highs Tonal quality of Broadcasting Stations that attenuate or accentuate either highs or lows can be equalized for pleasant listening High performance recording tapes that require special equalization in playback can be accomodated by appropriate adjustments on the controls of PPEQ 86 Phono cartridge or speaker inadequacies can be corrected for pleasant listening Find the correct slide control on your PPEQ 86 and move it up or down a few dB In cases when you want to hear the vocalist or any specified music2. 24 slide control levels which permit a boost or cut of 12 dB minimum at the frequencies of 15Hz 30Hz 60Hz 120Hz 240Hz 500Hz 1KHz 2KHz 4KHz 8KHz 16KHz 32KHz 3 BLUE LED LEVEL DISPLAY METER 4 EQ IN OUT SWITCH When depressed EQ effect is on 5 SOURCE TAPE SWITCH Chooses input of source 1 2 or tape from the rear panel connectors 6 LINE 1 LINE 2 SWITCH Chooses one of two sources plugged into the rear panel connectors 7 PRE POST SWITCH Determines whether the output signal comes from before or after the equalizer circuits but does not affect the tape circuits 8 LEVEL CONTROLS Located on the front panel of your Equalizer are two Marianig Frequency Spectrum Level Balancing Controls Since it is possible that certain settings of the Frequency Equalization Slide Controls will increase or decrease the total average signal level the LEVEL CONTROLS are used to adjust each channel so that the average output will be equal to the input sign al level This adjusts the Equalizer for Unity Gain 9 LED METER ADJUSTMENT When rotated this control vary the sensitivity of the LED Meter It should be adjust ed so that the loudest and softest sound will be indicated in right position 10 POWER CORD CONNECTOR This connector is meant for the connection of the supplied main cord 11 TAPE IN JACKS i For playback of tape allowing EQ of pre recorded tapes or re EQ of a tape made using EQ 12 TAPE OUT JACKS These outputs feed yo
3. al sound louder the PPEQ 86 can give you perfect satisfaction INSTALLATION CAUTIONS 1 The unit should connect to an AC out let providing the proper voltage of 120 V 220 V AC 60Hz 50Hz 2 If your sound system does not provide a tape monitor function it will not be possible to connect the equalizer with your sound system Please refer to Fig 1 or Fig 2 installation instruction picture for connecting the equalizer with your sound system and be sure Set the tape monitor control switch of the sound system to ON position Set the loundness control switch of the sound system to OFF position CONNECTIONS CONDITION 1 INTEGRATED RECEIVER INTEGRATED RECI AMPLIFIER LINE PUT OUTPUT CONDITION 2 INTEGRATED RECEIVER INTEGRATED AMPLIFIER TAPE BES PRE AMPLIFIER OPERATING e m a LINE APE COO COO t NN tee 10 16 17 15 14 13 12 11 Fig 3 1 POWER SWITCH To push in the power switch for power supplied from house hold AC outlet to operate the equalizer and that time the LED indicator should be lighted Contrary to push out the power switch for shutting off power supply when the equalizer does not work and that time the LED indicator should not be lighted 2 FREQUENCY BOOST CUT CONTROLS Control over the response curve is accomplished by 12 slide control levels each of left and right channel a total of
4. e EE en of 20 to 20 000 Hz it is surprising to see how low musical fundamentals actually are Almost all are under 3 500 Hz It should be understood Floor however that if all instruments were Ficca I perceived only by their fundamental Y FRENCH HORN J _ _ 771 frequency output white areas they Ronse SL en would all sound alike It is the har a ee blade we en monics or overtones Shaded areas nn that give each individual instrument A er its character or timbre and set it apart EAT cua fo yo eri MIA from the rest a a 2 36 40 80 120 a Lo Hz Inte ese enough tne human ear iS DI FREQUENCY LEVEL CONTROLS more sensitive to certain octaves in the Fig 5 musical spectrum than to others Whoever designed this engineering marvel deemed it necessary to tune the ear more toward the midrange frequencies where speech and voice communication occur than to the outer octaves of low bass and high musical overtones As a result very small energy changes here will cause a more drastic psychoacoustic effect that larger changes would at the frequency extremes In order to discuss the qualitative effects of adjustment in tonal balance it is best to arbitrarily divide the musical spectrum into five ranges The Bass approximately 20 140 Hz There is little musical material with fundamental frequencies below about 60 Hz and what is normally perceived as low bass material is actually in the 60 140 Hz range The very lowest f
5. or as marked on your Equalizer Cleaning The cabinet can be cleaned with a soft cloth or if necessary cleaned with a cloth dampened with water Never use polish solvents abrasives or strong detergents on the cabinet since these can damage the finish Nonuse periods The power cord of your radio should be unplugged from the outlet when left unused for a long period of time Object and liquid entry Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings an ge SPECIFICATION Frequency Response Control Frequencies Control Range Harmonic Distortion lat 1V output 20Hz 20KHz Hum and Noise at 1V input Shorted intermodulation Distortion 70Hz 7KHz 4 1 ratio Dynamic Range 10K Ohms load Gain Level Input Impedance Inputs Outputs Powe r Consumption Cabinet Dimension Set Weight 0 5 dB Hz 100 5 Hz 100 KHz _10dB 15 Hz 30 Hz 60 Hz 120 Hz 240 Hz 500 Hz 1KHZz 2K Hz 4K Hz 8K Hz 16KHz 32KHz 112 dB 0 02 90 dB 0 02 8 volts RMS 0dB 1 dB 50K Ohms 2 main amp 1 tape monitor 1 main amp 1 tape out 120V AC 60Hz 11W Export 220V AC 50Hz 15W 482W x 132H x 187D mm 19 x 5 2 x 7 4 4 5kg 9 9lbs CARE AND MAINTENANCE Your Pyle Stereo 12 Band Graphic Equalizer is an example of superior design and craftsmanship The following suggestions will help you care for your equalizer booster
6. requency control can be used to en hance output for the few instruments in that range organ contrabassoon etc or it can be used to reduce rumble acoustic feedback and other low frequency aberrations The 30 Hz 60 Hz and 120 Hz controls will cause the greatest percepable changes in bass response The Mid Bass approximately 140 400 Hz An over accentuated mid bass region will yield a very muddy and boomy quality to the music A system shy of mid bass will sound hollow and thin The 240 Hz control is important for good overall balance Te The Mid Range approximately 400 2600 Hz As the area where the ear is most sensitive to tonal balance the mid range is important in adjusting the qualitative sonic charac teristics of your system There is controversy among engineers and audiophiles as to what the proper balance should be in this range Moreover you will find some 500 Hz 1000 Hz and 2000 Hz controls settings optimum for certain types of music with other settings just right for different types The Upper Mid Range approximately 2600 5200 Hz Speaker designers often boost output in this range to effect a quality of presence to the music Too much energy on the other hand sounds overbearingly harsh and strident A good balance should be achieved between this and a more muffled sound Use the 4000 Hz control for this effect The High End approximately 5200 20 000 Hz The region up to only about 12 000 Hz or so is
7. so you can enjoy it for years Keep the graphic equalizer dry If it does get wet wipe it dry im mediately Liquids con tain minerals that can corrode electronic circuits Ts Use and store the graphic equalizer only in N normal temperature en Se vironments Tempera ture extremes can shorten the life of elec tronic devices and distort or melt plastic parts Handle the graphic equalizer gently and carefully Dropping it can damage the circuit boards and can cause it to work improperly Keep the graphic equa lizer away from dust and dirt which can cause premature wear of parts Wipe the graphic equa lizer with a damp cloth No occasionally to keep it looking new Do not use gt harsh chemicals clean ing solvents or strong detergents to clean the graphic equalizer NOTES h www pyleaudio com
8. ur tape deck enabling EQ of recordings being made 13 LINE OUTPUT JACKS These outputs typically plug into your preamp s tape monitor jacks 14 LINE 2 SOURCE INPUT JACKS 15 LINE 1 SOURCE INPUT JACKS 16 110V 60Hz 220V 50Hz SELECTOR 17 GROUND LIFT SWITCH This switch is used to disconnect the signal ground from the mains and chassis earth ground If it is determined that the equalizer is the cause of hum or buzz in your system due to a ground loop move this switch to the lift position In this way the equalizer is used to flatten the often uneven frequency response of stereo components and compensate for peculiarities in room acoustics and also to reduce noise in program source By moving the appropriate controls up or down a few dB you can alter the total quality to suit your personal preference TYPICAL FREQUENCY RESPONSE PER CHANNEL ae a any ey IATA GF arse re LK MINDEN a DL BR BLK TSE SS SST ANNIN ESSE SS pot et kc Pocket bp HT S Z AAA SARA OA AA ARICA AIX AAA T q AE ASES ee Se ar AE 7 iK 2 345 7 IK 2 345 7100K D y m O C m zZ O lt I N LL O Eh THE MUSICAL SPECTRUM Approximate fundamental range and lower harmonics This chart correlates familiar musical Lo 2 Approximate range of relatively important harmonics subjective by necessity 5 n 2 a Se EE ET instruments with the numerical fre quencies that they produce Given Eb bodas the often talked about musical rang
9. what is normally perceived as high frequencies Adjustment in this range affects the brilliance of music with too much boost in energy yielding on unpleasant and piercing quality Most adults have hearing which rolls off rapidly above 14 000 to 17 000 Hz As a con sequence the 16 000 Hz control will have a very subtle effect It can be used to add a little more dimension to the sound or as a very high frequency noise filter SAFETY USE AND CARE INSTRUCTIONS Read Instructions All the safety and operating instructions should be read before your Equalizer is operated Water and Moisture Your Equalizer should not be used near water For example near a bathtub washbowl kitchen sink laundry tub in a wet basement or near a swimming pool etc Ventilation Your Equalizer should be situated so that its location or position does not interfere with its prope ventilation for example your Equalizer should not be situated on a bed sofa rug or similar surface that may block the ventilation openings or placed in a built in installation such as a bookcase or cabinet that may impede the flow of air through the ventilation openings Heat Your Equalizer should be situated away from heat sources such as radiators heat registers stoves or other appliances including amplifiers that produce heat Power Sources Your Equalizer should be connected to a power supply only of the type described in the operating instructions
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