OWNERS MANUAL FOR MINI-BRUTE SERIES
Contents
1. The Company Where Sound And Portability STILL Count i ZAN MB POLYTONE ON THE MOVE VEY OWNERS MANUAL FOR MINI BRUTE SERIES A NOTE TO YOU THE OWNER Congratulations on your selection of a POLYTONE amplifier The equipment is designed with you in mind Like you we are musicians and our equipment is for making music not marketing statistics Of course we appreciate and enjoy the fact that along with our quality of workmanship and engineering we are realizing our share of the market At POLYTONE the engineers are professional musicians so they know what an amp is supposed to do and what is needed to keep it operating at the high levels demanded of today s equipment Each amplifier meets the highest possible standards for quality and performance Before we ship any of our products they must pass a series of intensive and rigid quality control tests some of the toughest in the industry We re happy to say that your amplifier was made by skilled and dedicated craftsmen who take pride in their work This is your assurance that your POLYTONE equipment will be ready when you are POLYTONE delivers the sound you want After all we re musicians like you INTRODUCTION l These are your instructions for operating and performing with POLYTONE equipment keep them with you and most importantly go through them now These instructions take you through the various steps of setting up and showing you how to use the various controls Aft2. Turn dial clockwise to boost or left to cut 5 TREBLE POTENTIOMETER flat setting at 12 c clock Turn dial clockwise to add up to 20db of Treble counterciockwise to cut up to 20db of Treble 6 CHANNEL 1 VOLUME POTENTIOMETER allows control of volume 7 TONAL COLOR SWITCH BOOST OR CUT HIGHS center position is normal By flipping up to BOOST you ve got an extra 10db of highs or flip to CUT down and cut back 10db This switch works independently of the Bass Midrange and Treble controls 8 INPUTS Hi Gain is used for most instruments Lo Gain for instruments with exceptionally hot outputs such as organs synthesizers and other keyboards 9 REVERB POTENTIOMETER controls amount of reverb HAMMOND 3 spring which can also be remotely controlled by a dual footswitch optional This feature is not included in the SONIC BASS 10 MASTER VOLUME POTENTIOMETER determines the amount of output signal For quiet operation set the MASTER VOLUME at 12 o clock Turn up channel volume For full power of output signal run MASTER VOLUME wide open and turn channel volumes down FOR Models MegaBrute MegaBrain Mini Brutes Ii and IV CH II SONIC LEAD CIRCUIT is controlled by 2 potentiometers GAIN and CONTOUR and a 3 way switch PROGRAM For SONIC BASS skip to 14 11 GAIN Potentiometer with switch Switch on activates CH I and affects volume CH VOLUME is deactivated 12A CONTOUR adding CONTOUR will boost and cut various freq
3. IC BASS CIRCUIT three pots contro the Sonic Bass circuit and work in conjunction with each other GAIN CONTOUR BASS DRIVE 16 GAIN Potentiometer to activate this circuit switch on GAIN pot this auto matically deactivates CH This control by itself only affects volume 17 CONTOUR when adding CONTOUR you will boost different upper frequen cies as you rotate the dial 18 BASS DRIVE turning up the BASS DRIVE adds low end frequencies to the sound you will hear as you turn up this control Remember these three controls work as partners not individually Once you have the setting you like you can turn up the GAIN to control volume This SONIC CIRCUIT is a separate entity and has nothing to do with CH I You will hear that this SONIC BASS CIRCUIT is even warmer than the regular CH POLYTONE sound if that is possible Don t forget the MASTER VOLUME must be turned up for the preamp to be active 19 ON OFF Switch for HORN LOWER REAR PANEL All Models 1 EXTENSION SPEAKER JACK output jack for use with our POLYTONE monitor cabinets perfectly matched for our amplifiers 2 HEADPHONE JACK cuts out main speaker 3 AC CORD BRACKETS for wrap around storage of power cord 4 POWER CORD for your safety we use a three wire line with a ground it is not a good idea to remove the ground pin under any circumstances If it is necessary to operate the amp with the old 2 prong plugs a suitable adapter should be used Operating amp
4. er all you ve got to feel gcod about the equipment you are working with in order to play your best which is exactly the purpose of this manual to introduce you to POLYTONE your amp and its features f you have any questions problems or just want to say hello feel free to write at any time Thanks for being with us PROPER USE OF POLYTONE EQUIPMENT 1 Place volume controls at O before turning on amp 2 Always plug cord into instrument before plugging into amp 3 Since these amps are solid state we do not have a heat factor your amp operates extremely cool 4 During intermission be sure that the volume control is turned off either at the amplifier or your instrument to avoid the risk of surprise feedback squeal 5 POLYTONE speakers are capable of handling extreme power They are specially designed utilizing a high temperature expoxy However when using the amplifier for long periods of time at any overdriven distorted level the power into the speakers jumps to 160 170 watts Use good sense 6 Minimum exterior speaker impedance is 4 ohms If improper impedance is used the amplifier will operate extremely hot which could cause damage Much better results can be achieved by using our SIDEKICK cabinet for extra power 7 Do no set beverages on top of the amplifier Sugared drinks as well as others can cause severe damage if spilled into the amplifier 8 It is necessary that the proper value fuse be used If improper value is u
5. sed the guarantee will be voided if an amp blows fuses the unit should be taken to a qualified service center for repairs For fuse value refer to page 3 9 PLEASE NOTE MALICIOUS DAMAGE OR MISUSE OF THE EQUIPMENT WILL AUTOMATICALLY NULLIFY THE WARRANTY ie POLYTONE MUSICAL INSTRUMENTS INC 6865 Vineland Ave North Hollywood California 91605 818 760 2300 e FAX 818 760 2302 For Models MegaBrute MegaBrain Mini Brute li amp IV page 2 MASTER FX LOOP SONIC CIRCUIT ee sw GN SONG oy i EDGE 6 4 6 WARM DRIVE 14 3 7 3 13 7 3 240 8 PREAMP 2 on 5 TITs t2Z2A 12B REMOTE 1 9 CHI CHI 0 10 INPUT OUTPUT 0 10 LO Hi REVERB VOLUME SW OFF CH1 ye GAIN CONTOUR PROGRAM Jo TON 1 FLAT FLAT FLAT pe OlVTONE ON 2 2 2 2 2 2 3 7 8 3 7 3 3 33 4 33 5 32 6 87 Has 9 8 2 OFF 4 4 4 4 4 4 1 9 LOGAN 1 9 5 5 5 5 5 5 o 0 o 1 ON BASS MID TREBLE VOLUME cut REVERB OPERATING INSTRUCTIONS FOR MINI BRUTE SERIES 1 PILOT LIGHT Indicates when the electric supply is being fed to the amp POWER SWITCH A three position switch ON OFF ON The reason for two ON positions is to give you the option to reverse polarity to eliminate 60Hz hum and to avoid electrical shock when touching your instrument 3 BASS POTENTIOMETER flat setting at 12 o clock Turn dial clockwise to add up to 20db of bass counterclockwise to roll off up to 20db of bass 4 MIDRANGE Potentiometer flat setting at 12 o clock
6. uencies as you rotate the dial 12B PROGRAM WARM EDGE and DRIVE These are specially voiced circuits to obtain various sounds The SONIC CIRCUIT is a separate entity and has nothing to do with CH VOLUME CH I tone controls are still active Experiment for endless variety of timbres 13 REMOTE SWITCHING JACK for CH CH II amp Reverb to remotely control channel switching and reverb with our optional dual footswitch To switch from CH to CH Il the GAIN switch potentiometer must be clicked ON 14 PREAMP OUT JACK solely a preamp signal for use with any high age 3 quality amplifier or mixer or direct to recording console pag 15 FX LOOP OUTBOARD for use with external effects devices The OUTPUT feeds signal to the Effect Volume is preset at the factory To hookup connect cord from INPUT TO INST on device to OUTPUT on preamp and a cord from OUTPUT TO AMP of the device to INPUT on preamp Plug instrument into preamp You are now able to balance the amount of effect with the straight instrument sound For Model MINI SONIC BASS SONIC BASS CIRCUIT FX LOOP AY a5 OUTBOARD w ee Be et s m HORN 49 oe 3 7 preaMP 2 15 8 lt ie 17 OUT 9 INPUT OUTPUT 10 R oan sw oFF cH IP OWWTONE GAIN CONTOUR BASS DRIVE 1 FLAT FLAT FLAT MASTER ae ai eae aur She 8 rite ON 2 2 2 3 333 433 5 32 6 8 7 won 2 Q 8 2 OFF 4 4 4 4 4 4 1 9 LOGAN 1 9 m 5 5 5 5 5 5 0 10 0 10 ON BASS MID TREBLE VOLUME CUT VOLUME CH II SON
7. with the proper grounding receptacle reduces hazard of shock 5 FUSE located in the cap of the fuseholder this should be replaced with one of proper value should it fail In order to keep the guarantee in effect you must replace this fuse with the correct rating otherwise the warranty will be voided Should your amplifier repeatedly blow fuses take it to your nearest qualified service center for repair FUSE RATING 2A 250V SLOW BLOW
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