Fender SPL 1225 User's Manual
Contents
1. Important always check to be sure that the intemal external crossover switch that selects passive or bi amp operation is in the correct position prior to use Failure to do this may damage the speaker For bi amplified operation the recommended crossover frequency is about 2200Hz The high frequency level should be about 8 dB lower than the low frequency level to correctly match the response of the two drivers when bi amplifying You should always adjust the levels to your own personal taste Performance Specifications SPECIFICATIONS System Type s Two way vented baffle low frequency section a Horn loaded high frequency section Woofer SPL1225 MKk II a Single 15 inch driver with 3 inch voice coil employing polyimide KAPTON voice coil bobbin Cast alloy frame SPL1226 Mk II Dual 15 inch drivers with 3 inch voice coils employ ing polyimide KAPTON voice coil bobbin Cast alloy frames High Frequency Fender designed and manufactured hom with 90 x 40 degree radiation angle Special Fender Designed 1 inch exit driver with a 2 inch voice coil featuring a TITANIUM diaphragm and circumferential ring phasing plug Crossover Passive fourth order Linkwitz Riley design Parallel 1 4 inch input jacks s 4 pole Neutrik speakon jacks a BLAMP ready switching capacity Cabinet All Birch plywood construction with multiple angle shape sturdy DADO joinery Rugged carpet covering2. Power Rating passive crossover Crossover Frequency 90 40 200 Watts per 400 Watts 800 Watts 90 40 400 Watts per 800 Watts 1600 Watts A PRODUCT OF FENDER MUSICAL INSTRUMENTS CORP CORONA CA 91720
3. SPL Loudspeaker Systems y From Fender Pro Audio 4 Owner s Manual for SPL 1225 Mark Two amp 1226 Mark Two ELECTRONICS The SPL 1225 Mk Il and SPL 1226 Mk II models are full range loudspeaker systems designed for professional ser vice These systems boast efficiency wide response low distortion and controlled directivity Product Features Only the finest components have been utilized to provide years of trouble free performance Quality features for the 1225 Mk Il include a woofer with a die cast alloy frame FOURTEEN and ONE HALF POUND motor structure and a 3 inch voice coil employing a polyimide KAPTON coil form The 1226 Mk II uses two of the 15 specially designed cast frame woofers to achieve low frequency extention to below 40Hz Since the lower woofer is a significant dis tance from the horn it is rolled off above 300Hz to pre vent interaction and phase cancellation with the horn near the crossover frequency of 2200Hz The high frequency compression driver has been con structed using a polyimide KAPTON voice coil former cou pled to a titanium diaphragm employing a circumferential ring phasing plug Our custom designed horn with its special vertically aligned airfoils has been optimized to provide the best possible performance while providing accurately controlled dispersion The crossover network is a precision fourth order LINKWITZ RILEY design that has been optimized through literally
4. hundreds of hours of MLS testing group delay measurments and empirical listening tests It fea tures both standard 1 4 jacks and Neutrik Speakon con nectors Cabinet construction is trapezoidal to minimize internal reflections which can cause colorization of the low fre quency driver Additionally sound absorptive insulation is used to further suppress internal reflections The rugged Carpet covering over 3 4 inch plywood will withstand the rigors of tour service and maintain its good looks Setup Procedure For best perfor mance placement is important If the system is placed near a flat wall bass performance will be reinforced by about six deci bels This means that for applica tions where feed back will not be a concem keyboard or drum synth ser vice place the figure 1 speaker systems near the rear wall of the stage elevated above equipment that may be on stage Where feedback is a problem vocal microphones and the like place the speakers in front of the microphones near the front of the stage For multiple system operation keep the high frequency sections near one another and angle the systems so that their flat sides are in contact see figure 1 In this way two systems can provide nearly 150 degrees of horizontal coverage Connect the amplifier to the loudspeaker with minimum 14 gauge wire The length of the speaker cable should be no more than 100 feet Where x multi
5. ple systems are to be DAISY o CHAINED together see fig ure 2 and figure 3 or where Daley chain connection Using the internal passive crossover Switch set to normal mode longer cable 2 runs will be A encountered From amp 50 Speaker cord consider using a feet maximum short length larger gauge 14 wire minimum 14 wire minimum wire smaller number A rule of thumb is to subtract 3 from the wire gauge each time the number of systems doubles or where the cable length doubles As an example for a 200 foot run use 11 gauge wire For a 100 foot run to a pair of speakers also use 11 gauge wire For a 200 foot run to two systems use two separate 11 gauge F ure 3 cables If too small 9 a gauge of wire is Daley chain connection used no harm or Using bi amp mode hazard will result and Neutrik Speakons but sound quality Switch set to and level may be bi amp mode degraded due to the wire s internal resistance We suggest the use of the SWITCH jo CRAFT Z15P plugs on the cable ends if the wire is heav ier smaller num ber than 14 gauge For quick hookup of bi amplified systems and to minimize the chance of connection error use the Neutrik Speakon connectors Connection chart for Normal Mode Neutrik Speakon 14 amp 24 Positive connectors 1 4 2 Negative Bi Amp Mode 1 Low Positive 1 Low Negative 2 High Positive 2 High Negative
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