Electro-Voice LS8 User's Manual
Contents
1. and 3172 request inspection and instructions l WARRANTY Wolverine speakers are guaranteed against defects in original workmanship and materials Shoulda speaker become damaged or develop faulty opera tion from unusual conditions of use Electro Voice maintains a complete Service Department to return equipment to factory new condition If attention becomes necessary please write the Service De partment requesting return authorization and shipping instructions i 9 32 DIA THRU 4 HOLES EQUALLY SPACED ON 7 5 8 8 C LS8 Figure 1 Dimensions 9 65 Part No 531462 amp ELECTRO VOICE INC Buchanan Michigan Litho in U S A2. not necessary as the compressible gasket will form an acoustical seal with nominal pressure CONNECTIONS Use 18 or larger fixture wire to connect the two terminals on the loudspeaker to the amplifier out put To insure proper phasing the speaker T1 terminal should be connected to the 8 ohm amplifier tap the T2 terminal should be connected to the amplifier common tap The 8 ohm impedance of Wolverine speakers is a standard EIA rating A mismatch of as much as 50 may be made without greatly affecting the reproduction quality or effi ciency of the unit When the speaker cable must be run under carpets or behind moldings etc ordinary T V twin lead is satisfactory SPECIFICATIONS LS8 LS12A LS15 Frequency Response 45 to 14 000 40 to 14 000 35 to 14 000 cps cps cps Nominal Impedance 8 ohms 8 ohms 8 ohms Power Handling Capacity Program 20 watts 20 watts 20 watts Peak 40 watts 40 watts 40 watts Voice Coil Diameter 2 2 2 Magnet Weight 6 80z Alnico 130z Cer 130z Cer v Indox Indox Nominal Resonance 75 cps 65 cps 50 cps EIA Sensitivity Rating 43 db 45 db 47 db Dimensions 8 3 8 dia x 3 1 2 12 diax 15 1 8 diax overall depth 3 15 16 6 11 32 depth depth Net Weight 4 lbs 80z 5 lbs 8 oz 9 lbs Baffle Opening 7 1 8 Bay 14 Mounting Four 9 32 holes equally spaced on circle of 7 5 8 11 1 2 14 1 2 SYSTEM IMPROVEMENT Wolverine Step up kits provide a simple method for improving speaker system performance in
3. stride with the budget A single loudspeaker may LS8 LSiI2A amp LS15 LOUDSPEAKERS SUANVAdSGNO ANIUSAIOM GIST VelsT ss be expanded to a deluxe 3 way system without ob soleting existing components and with the assur ance of properly matched components Model HF1 high frequency Step up Kit should be the first addition to a Wolverine full range speaker In addition to extending high frequency response to beyond the limits of audibility this Step up Kit provides more precise definition of VHF wave forms and improved high frequency dispersion in the listening area 5 DIA e 6 41 32 9 32 DIA THRU 4 HOLES EQUALLY LS15 Ifa further improvement in performance is desired ENED CHD MESES the final addition shouldbe an MF1 mid range Step up Kit The audio range is thus divided for more efficient reproduction of each frequency section lowering both harmonic and intermodulation dis tortion The improved mid range performance provided by the MF1 is especially important be cause instrumentand voice harmonics which deter mine the character of the sound are found in this frequency range 3 15 18 LAX EX SFB 9 32 DIA THRU 4 HOLES EQUALLY CUSTOMER SERVICE Wolverine speakers are packed to provide protec tion well in excess of shipping requirements of the Interstate Commerce Commission If shipping LS12A SAS ERS E damage does occur contact the carrier or the dealer from whom the unit was purchased
4. ENGINEERING DATA DESCRIPTION Wolverine LS8 LS12A and LS15 loudspeakers are designed to operate effectively both as full range speakers and as low frequency drivers in multi way systems Full range reproduction is enhanced by the exclusive Radax design The dimensions mass and location of the coaxially mounted Radax cone have been carefully chosen for maximum improve mentof the speaker s high frequency performance Carefully selected and specially treated cone ma terial assures extended bass response affording pleasing reproduction of all low frequencies nor mally encountered in music INSTALLATION As with any quality loudspeaker care should be taken to house Wolverine speakers properly if best results are to be obtained Excellent results may be achieved by the use of a properly designed bass reflex enclosure Detailed information on home construction of bass reflex enclosures is available from Electro Voice in Technical Bulletin No 10 Any of the bass reflex enclosures described in numerous articles may be employed provided they are intended for a speaker of the same size and resonant frequency as the Wolverine speaker to be used To mounta Wolverine speaker cuta baffle opening and drill mounting holes as indicated Use four carriage bolts nuts and washers or equivalent use of woodscrews is not recommended Secure the speaker to the baffle board just tightly enough to compress the speaker gasket Excessive tighten ing is
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