Earthquake Sound SUB-80X User's Manual
Contents
1. FAM AQUAAD CH o Tae ie ay D Sound That Will Move You SUB 80X 150 Watt Digital Powered Subwoofer CAI ANUAAL CE Te ie iw BD Sound That Will Move You Earthquake Sound reserves the right to amend details of the specifications without notice U S e r S M a n u a Copyright Earthquake Sound Corporation Earthquake Sound Corporation 2727 McCone Avenue Hayward CA 94545 Phone 510 732 1000 Fax 510 732 1095 Dear Valued Customer Congratulation on your choice of the SUB 80X self powered subwoofer system one of Earthquake s newest designs in bass reproduction units With an integral high power amplifier 150 Watts the SUB 80X subwoofer combines tight bass extension with high output levels Acoustically it is designed to match typical satellite soeaker systems to enhance the over all sound quality and performance of your system Key Connection and Controls A LINE IN RCA Input jacks accept up to 1 4 volts of audio input signal mono and stereo B LIN OUT RCA High pass filtered RCA output jacks with left and right line output signals The line out RCA s are not functional when the line in signal going into the subwoofer is derived from a sub filtered output of an external processor C XOVER FILTER The 12dB Octave variable crossover filter is designed to control the subwoofer cut off frequency range from 40Hz to 130HZz D VOLUME CONTROL Manual adjustment of the sound level2. S BASS BASEMENT LOADING STEALTH APPLICATION Uneven amp Gapped Transition Between Lower and Upper Bass OVER GAPPED CROSSOVER SETTING LOWER BASS ENCROACHING ON UPPER BASS LOWER UPPER SUB 80X BASS BASS Operating amp Controlling Your SUB 80X Secure all connection before powering up plugging in the AC cord into the subwoofer Connect the input signal to either the RCA lin in A or the High Level input terminal F these two input devices can not be used simultaneously choose the one that best matches the output of your existing audio system If needed connect the RCA line out B to another amplifier to drive satellite speakers front or rear The RCA line out has high pass filtered signal at about 70Hz 5dB Octave cut off The High Level input I for satellite speakers is fitted with a High Pass filter 70Hz It is only powered when the main or front speaker signals are driven into the High Level input J These terminals are marked with red and black to indicate the amp respectively Adjust the subwoofer low pass filter cut off to near 100HZz at first slowly bring down the crossing point until you eliminate any vocals from emanating from the subwoofer An ideal crossing pint range from 55 to 70Hz In case the SUB 80X becomes out of phase with the satellite speaker flip the phase switch to correct the problem maximum bass is only achieved when the sub is in phase with rest of your speaker
3. of the subwoofer Always start at MIN position and slowly increase the volume to reach the desired subwoofer level E PHASE SHIFT 0 to 180 degrees subwoofer phase shift switch F POWER SWITCH For operating the amplifier automatic or manual power on In automatic mode the SUB 80X will turn OFF in 15 minutes if no audio signal is detected G H POWER INPUT The SUB 80X operates in 115V and 230V environments A sliding switch located near the power plug allows for both operations l HIGH LEVEL OUTPUT High pass filtered output terminals designed to power up stereo satellite speakers J HIGH LEVEL INPUT Clamp style input terminal accepts high level audio input from the main or front system speakers up to 10 volts o O OFF Key Connection and Controls PHASE AUTO POWERO O O VOLUME HIGH LEVEL OUTPUT DIGLI POWERED SUBWO O FER R 110 120VAC 60Hz 220 240VAX 50Hz O FUSE ein Tanasi FUSE 230V T1A 250V O 110 120 220 240V O O OUT i 1 r 180 jo RIGHT ror I e LEFT 40Hz 180Hz HIGH LEVEL INPUT B480X So WAT TIS WARNING TO REDUCE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL EAPTHOAKE J Earthquake Sound 2727 McCone Avenue Hayward CA 94545 USA O www earthquakesound com Listening Room amp S
4. s Cautions Do not place the subwoofer in an environment exposed to dust excessive moisture or heat Direct exposure to sun light will over time deteriorate the enclosure finish and may cause the amplifier to overheat To prevent electrical shock never open the subwoofer cabinet before disconnecting the power cord from the amplifier s main socket In the event of a blown fuse replace it with a 1 ampere fuse only Over fusing voids the warranty and will destroy the amplifier Features amp Specifications Amplifier Power Output 150 Watts Frequency Response 23Hz 180Hz Crossover Frequency 40Hz 130Hz Crossover Slope 12dB per Octave Typical THD 0 09 Input Impedance 47 000 ohms Input Sensitivity 50mV to 2 3V Power Supply 115V 230V 50Hz 60Hz Fuse Rating 1 amp Subwoofer 200 watts 8 subwoofer 1 5 high temperature voice coil Durable pressed paper cone Long Excursion santoprene surround 480z high density magnet 89dB 1W 1M FS 38Hz Qts 0 516 System Dimensions HxWxD 13 1 2 x 9 1 2 x 13 3 4 Weight 18 7 lbs 8 5Kg For Technical Issues Please Contact Us VIA Phone 1 800 576 7944 Email tech earthquakesound com
5. ubwoofer Position Positioning Examples Subwoofer positioning is integral to the successful application of any surround CORNER LOADING sound system It is very important to keep in mind that the proximity of the HIGHLY RECOMMENDED SUB 80x WIDE SCREEN FLAT PANEL subwoofer to a wall or a corner contributes to an increase in efficiency SPL because of the mirror effect also referred to as corner loading LEFT RIGHT FRONT FRONT It is therefore advisable that you place the SUB 80X near a wall or preferable in the corner of the room That will increase the subwoofer effect by 2 to 3 decibels without raising the volume control of the SUB 80X Fine Tuning The fine tuning process includes creating a smooth transition of music between the subwoofer and the next speaker up usually a woofer or a mid range As shown in the graph below a smooth transition between lower and upper bass is directly relative to the crossover setting and the capability of the next woofer up to reproduce lower frequencies Keep in mind that vocals extend down to 70Hz adjust your SUB 80X accordingly a i CENTERED POSITION Original Input Signal RECOMMENDED LEFT WIDE SCREEN RIGHT FRONT FLAT PANEL FRONT VIEWING POSITION Smooth Transition Between Lower and Upper Bass IDEAL CROSSOVER SETTING LOWER VY UPPER BASS BASS VIEWING POSITION Gapped Transition Between Lower and Upper Bass OVER GAPPED CROSSOVER SETTING LOWER UPPER BAS
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