Peavey Standard PA User's Manual
Contents
1. 5 k Ohms output impedance The effects high level output is the out The speaker output jacks are designed put from the effects mix buss for driving to be used with a total load of FOUR OHMS external devices that require 1 5 V R M S Speaker systems of higher impedance can be 10 k Ohms used with a slight loss in output power Speaker systems with less than a totel of The effects low level output is the Four Ohms can be used with the risk of divided down signal derived from the effects overloading the power amplifier Slightly less mixing amp and is designed to supply mic power will be delivered to lower impedances level_signals to auxiliary echo effects units because of the unique limiting action of our ete The effects low level output is approxi integral protection system The power ampli mately 0 10 V R M S 50 k Ohms fier is built on a large aluminum heatsink to cool the output devices A thermostat is iot kati n connected to this heatsink to shut the system __ The pilot light indicates when power is down in case of overheating Low speaker applied to the amplifier impedances tend to cause the amp to run hotter than normal and could cause the The fuse is located within the cap of automatic cutoff to operate if the output the fuse holder and should be replaced with stage becomes hot enough to endanger the one of the proper value if it should fail It is output devices The thermostat is self necessary that the proper va2. requirements Every necessary feature is included on this unit and no non functional switches and controls have been added The Standard PA is a professional mixer amplifier capable of handling most medium sized areas with power to spare with adequate facilities to control tonality and feedback with a minimum of effort The 130 Watt R M S power amplifier is powerful enough to drive most speaker systems and is constructed for extremely heavy duty opera tion using four output transistors instead of the more common pair of outputs Because we have added more ruggedness to the output stage the flexibility of the amplifier is greatly increased by providing a wider range of load impedances which can be used with no ill effect on the amp The input stages of the unit have separate low and high EQ controls for better tone control as well as a control for continuously varying the amount of reverb This variable control is much better than the common on off switch since it allows incremental reverb effects mixing instead of on or off switches Master controls have been included to facilitate tonal and volume balance of the overall sound of your PA system Field experience has shown that these master controls are absolutely necessary in producing a balanced professional sound The master section of your Standard PA contains complete three band master equali zation as well as adequate input and output facilities to allow use of the Standard PA
3. STANDARD PA MIDE e AMP WNER S MANUAL POWER AMPLIFICATION SECTION 260H MODULE Output Power 1 kHz 117 VAC Lins 1 Rated Power 130 W RMS Rated Load 4 Ohms 2 Power vs Load LOAD IMPEDANCE 8 4 2 OHMS OUTPUT 1 THD EJ 140 GA W IM Distortion Lesa than 0 3 from 0 5 Watt to 100 Watts typically 0 1 THD Less than 0 1 from 0 5 Watt to 100 watts from 20 Hz 10 kHz typically 05 Frequency Response 1 dB 20 Hz 20 kHz 1 W 4 Ohms Sonsitivity Rated Powor amp Load 700 mV Input Impedance 15 k Ohms PRE AMPLIFIER SECTION Input Characteristies Tone Controls Fiat Volume Maximum Master 12 00 1 Sensitivity 4mV 1 kHz 2 Input Impedance 100 k Ohms Unbalanced 3 Noise 56 dB Open Circuit 60 dB 50 k Ohms 66 dB Short Circuit Distortion 1 kHz Rated Output Less than 0 1 THD Frequency Response 3 dB Down 40H amp 20 kHz Tone Controls 15 dB 50 Hz and 5 kHz Effects Send Control Continuously variable each channel masten secrion Tone entrols 18400 0 He 000 He 10 khi Reverb Return Control Continously variable with footswitch cut off E tion Gugut Cnet 20 V AMS ne 1O Se Ei E Oina Ca Encens Heh BY RMS reo 101 Ohmes g Efan Low 0 28 V AmS Into 10 On Your Standard PA Mixer Amplifier is the result of our constant research program and the features designed into this unit are those found necessary in our previous experience with actual on the job
4. dled When only one microphone is used the A input jack is more sensitive than the B input jack This high and low gain feature enables optimum microphone matching lf a high output microphone is overloading the sensi tive A input simply reconnect this mike into the low gain B jack When two inputs are used in each channel the input circuit automatically balances to equalize the cain in both A and B jacks This simple but ef fective switching system gives the user much greater flexibility in choice of input sensi tivities and overload protection MASTER SECTION Field experience has proven that a profes sional PA Mixer Amplifier must be equipped with a full set of master controls The Gain and Equalization controls on the individual channels enable the operator to get a reason able mix the master controls allow a much easier overall balance The Standard PA features three band master equalization as well as an auxiliary input for patching in echo etfects units or an additional mic input Output facilities are pro vided from the main output buss as well as both high and low level outputs from the effects buss The master low control is part of an electronic crossover and acts as an overall level control for all bass frequencies The action of this control is similer to the low controls on the individual channels The master middle control seems to give best results in the flat or cut
5. lue fuse be used resetting and normal operation will be to avoid damage to the equipment and to restored when the unit reaches safe operating avoid voiding the warranty Models that have temperatures If thermal shutdown is ap circuit breakers can be reset by depressing the parent then you are overloading the system red button If the breaker trips repeatedly and continued use in this manner will damage take the unit to a qualified service center for the system Never use less than a FOUR OHM inspection total load on the 260 module The output i voltage available from this unit is approxi __ The line power switch is of the three mately 23 V R M S into 4 Ohms with proper position type with the center position being line input off The three position switch has two on positions which are used to ground the ampli fier properly One of the on positions will yield the least hum or popping when the microphone is touched and this is the position that should be used The large line cord retainers on the rear panel are provided for your convenience in CAUTION storing the AC line cord during transport of the unit To avoid damage to your equipment or electrical shock when using your Standard PA The three wire line cord has been with other consoles or effects units all signal provided for your protection and should be connections should be completed with connected to the proper line voltage as indi shielded cable before power mains co
6. n cated on the back panel DO NOT REMOVE nection is made The three wire power GROUND PIN ON PLUG receptacles should be used if possible saat PEAVEY ELECTRONICS CORP Part No 80361027 711 A Street Meridian Mississippi 39301 601 483 5365
7. position O to 15 for most applications The effect of operating the middle control in the cut position is to give the extremes of bass and treble a boost relative to the mid range fre co EQUALIZATION Pale ogee 5g Mos A a ise pauuganon 6 yet Sio HIGH a EFF met quencies Operation in this mode yields a very crisp and articulate sounding system The master high equalization control determines the overall level of the treble frequencies and its operation is similar to the indivdual channel high controls The effects return control determines the gain of the additional channel provided in the Standard PA to facilitate use of an ad ditional microphone or external echo effects unit This control operates in conjunction with the effects input jack and feeds the main mix buss This effects return feature may be considered as an additional un equalized input channel The effects input jack is the input to the effects channel and operates in conjunc tion with the effects return level control The master volume control controls the gain of the master mixer by use of variable negative feedback The use of active mixing allows your Standard PA Mixer Amplifier to perform as well as many studio mixing con soles This method is the same used on the latest recording mixers and yields the lowest distortion and noise of any other method The master volume sets the level for the entire system and is set apa
8. rt from the other controls by the size of its contro knob The master volume should be set approximately age aor can 10 MASTER ENIE STANDARD PA MIXER AMP LINE OUTPUTS MAIN EFRHI EFFLO in the middie position 4 6 and fine adjust ment in volume should be made with the individual controls on each channel The auxiliary input provides an ad ditional line level 1 0 V R M S 10 k Ohms input to the main mixing buss to enable other mixers or auxiliary equipment to be patched into the main mix buss The reverb footswitch jack provides a method for reverb cut off by use of the op tional remote footswitch Any footswitch with the proper plug standard phone plug and a shielded cable will work with this jack The reverb return control determines the amount of delayed signal from the internal reverb unit that is mixed back into the main mixing buss Keep in mind that channel effect controls must be mixing sound signal into the effects rever buss for the reverb circuit to function If it should be de sirable to disable the reverb circuit in order to use the effects buss for other monitor echo etc the reverb may be elimated by use of the footswitch or by turning the reverb return control fully counter clockwise The main output is the jack provided to deliver signal from the main mixing amplifier to other mixers power amplifiers tape recorders etc This output is capable of 2 0 V R M S
9. with a wide range of auxiliary equipment The gain control serves to vary the gain of the preamp The preamps of the new Standard are of the variable feedback type which allows lowest noise and maximum performance The effects send control enables the operator to determine the amount of signal from the respective channels mixed into the effects reverb mixing buss These controls determine the overall mix as well as the output levels delivered to the effects outputs as well as to the reverb drive amplifier The low equalization control deter mines the low frequency response of the individual channel The Standard low control is a type of electronic crossover which acts as a volume control for the low frequencies Because of the design of this control it is possible to abtain both low boost and cut The vertical position 0 will yield a flat response Clockwise operation results in a boost and counter clockwise operatian results in a cut The high equalization control deter mines the high frequency response of the individual channel The high control is part of an electronic crossover and functions as a volume control for the high frequencies The vertical position 0 yields flat response while clockwise settings boost highs and counter clockwise settings yield a high cut Each channel of the Standard PA is equipped with two inputs jacks which are connected in a unique circuit that allows a wide range of inputs to be han
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