OWNERS MANUAL
Contents
1. Ww 97 12B 16B POSITION 2 8 OHMS 10 7 OHMS 6 4 OHMS 5 3 OHMS CU 24B amp 24B 2 7 OHMS2. D JD 2 Phil OT ST 9B 16B 24B LOUDSPEAKER ENCLOSURES OWNER S MANUAL pP Phil Jones Bass Thank you for purchasing PJB Piranha Speakers A great deal of dedication and passion went into designing and building this no compromise high performance loudspeaker system These are dedicated loudspeakers for the demanding bassist Reading this manual will enable you to get the best performance from them and it will give you many years of service READ THIS FIRST e Before using the Piranha Speakers please read ALL the instructions On receipt of product check for any signs of physical damage arising from shipping If any damage is visible contact your dealer Keep all original packing Never use this product in the vicinity of water Never connect more than one amplifier to a speaker The acoustic output of this loudspeaker can generate enough sound pressure levels to cause PERMANENT hearing damage to you and anyone else who is close to it Take caution with how much volume is used If you suffer from ears ringing this is an indication that you may be damaging your hearing Do not locate this speaker near any heat source This speaker must be connected to an amplifier as specified in this manual Do not let any liquid or foreign objects fall into any openings of the speaker Do not use this speaker if it has 1 Suffered by considerable physical damage 2 Been subjected to any liquids rain o
3. tH EH CHE LN LISTES NH HE E ENS k E E GENE Tk qa g B G HB INDE HER CCC EEE ee ee m m m E Lj Bl Hl ui E m p FH Ei 1 LIII EIE dt dh HHI 4 FEET REFERENCE INPUT 2 83VOLT RMS MICROPHONE DISTANCE UENCY Q x gt l a 4 FEET REFERENCE INPUT 2 83VOLT RMS MICROPHONE DISTANCE UENCY Q SPL V FRE PIRANHA CABINET 16B PJB PJB PIRANHA CABINET 8T HE TT ibis mmm nhs CET HEE ELI LISE LLLI MS 4 FEET REFERENCE INPUT 2 83VOLT R MICROPHONE DISTANCE SPL V FREQUENCY MS 4 FEET REFERENCE INPUT 2 83VOLT R MICROPHONE DISTANCE REQUENCY SPL V F PIRANHA CABINET 6T amp 9B PJB PJB PIRANHA CABINET 24B m it PEEP EEE EEE jo F E COTE LA DUR GER jl 1101 1 1 GES E ET EN ER LEO I I T T I I bg Den I T c IL 1 EE p p 4 5 REFERENCE INPUT 2 83 VOLT R MICROPHONE DISTANCE REFERENCE INPUT 2 83VOLT RMS MICROPHONE DISTANCE 4 FEET UENCY Q SPL V FRE B M 4 FEET UENCY Q SPL V FRE PJB PIRANHA CABINET 8T amp 24B PJB PIRANHA CABINET 8T amp 16B pe m Orro Ht HH L CET Ei ES MMH ESE L s Ei EHE EI EHE i SEE
4. st Esi bal L I pee nee HI ed ms in iiit siio i St Sa guest LL e um HA HEH HH 12 2 ELEELEDFEEELELER 2 3 2 REFERENCE INPUT 2 83VOLT RMS MICROPHONE DISTANCE 4 FEET SPL V FREQUENCY REFERENCE INPUT 2 83VOLT RMS MICROPHONE DISTANCE 4 FEET SPL V FREQUENCY Phil Jones Bass POSSIBLE SPEAKER CONFIGURATIONS PER AMPLIFIER A w SIX PAK SIX PAK 12B 12 OHMS 12B POSITION 1 4 8 OHMS 4 OHMS 6 OHMS
5. than 80 PJB speakers are rated at their minimum impedance point That makes them an easy load for just about any amplifier Just about any amplifier that can run down to 40 or even 20 can handle any impedance from a high 32Q down to 4 or 2Q any anything in between So if you have a 5 30 load it will not bother your amp at all It may be even perform better on this than a 40 load It depends on your amp PJB amps will handle any of the speaker combinations laid out in this manual with ease Cables High quality bass amplification demands low loss high current speaker cables Using cables that is not specifically designed for this application will result in significant degradation of your speaker s performance PJB cables are ultra low resistance with high current capability improving your speaker s definition and control We recommend for best results that you use PJB speaker cables since they are matched to the performance of these speakers PJB SPEAKER CABLES MODEL JJ 4 MODEL JS 4 BI lt 1 AFT MODEL 55 4 MODEL SS 20 Impedance amp Phase Response of PJB Speaker Cables versus Leading Brand s Equivalent 3 Phil Jones Bass Connecting up your speakers All PJB speakers feature genuine Neutrik NL4MP SPEAKON airtight loudspeaker sockets featuring low resistance silver contacts These have a current rating of 40 amps making them the ideal bass instrument speaker connection Using bot
6. ce please bring the speaker back to the dealer from whom you purchased the amplifier along with your sales receipt Depending on the complexity of the repair work your dealer may return the defect unit to PJB service center for repair or replacement Phil Jones Bass 8559 Page Ave St Louis MO 63114 USA Tel 314 814 1264 Fax 314 628 9941 www philjonesbass com support philjonesbass com Serial Number Date Purchased Dealer All PJB owners manuals can be downloaded form our website www philjonesbass com in PDF files 5 pP Phil Jones Bass LOUDSEAKER SPECIFICATIONS Piranha Minimum Maximum Equivalent Maximum Dimensions Cabinet Impedance dB at 10 feet Conventional Frequency Power HxWxD Net weight Systems Ohms with Cabinet Cone area Range Handling mm Per speaker Rec Amp 6T 12 111dB x 12 50Hz 15kHz 600W 330x520x445 24 Kg 8T 16 115dB 2x 10 45Hz 15kHz 800W 395x625x495 33 Kg 9B 8 0 117dB 40Hz 15kHz 900W 458x520x445 36 Kg 16B U 120dB 4 x 10 30Hz 15kHz 1600W 700x625x495 58Kg 8 0 24B 5 3 127dB 6 x 10 25Hz 15kHz 2400W 965x625x495 78 Kg 6T amp 9B 4 8 119dB 1 x 15 6 4 0 127dB 6 x 10 or 27Hz 15kHz 2400W 4 x 12 8T amp 24B NER Ui 128dB 8x10 or 23Hz 15kHz 3200W po Wi 4 x 15 Phil Jones Bass PJB PJB PIRANHA CABINET 6T PIRANHA CABINET 8B Ti u a e e LE 722716 ank P
7. h the 2 positive and 2 negative connections in parallel results in each PJB speaker connection capable of handling peaks of up to 80 amps The two Speakons on the rear recess plate allow parallel connected speakers to your amplifier Just plug your amplifier into the input socket and then connect your other speaker to the link out socket If you are using two speakers connected to your amplifier a better way of connection is to use each speaker directly connected to your amp s output sockets This will give a lower cable resistance due to the speaker cables also running in parallel improving your sound How to calculate the total impedance of multiple Piranha speakers Count number of speakers across and multiply by 8 example 4 across 32 Divide this number example 32 by number of rows down Example 8 4 Ohm Load DO NOT CONNECT CABINETS TOGETHER THAT HAVE A DIFFERENT NUMBER OF DRIVERS ACROSS EXAMPLE A 6T ON TOP OF A 16B This will put more power through the top cabinet making it work harder and will limit your total power handling A Note on Amplifier Power and Speaker Power Handling Very often loudspeakers and amplifier power ratings are totally misunderstood by the non technical user for good reason This is a complex and involving topic that will only be touched upon lightly in this manual First the ear is not capable of telling how much power is going to a loudspeaker Secondly ALL loudspeakers have different power ratings a
8. oss each speaker Using a 6T on top of a 16B will work but the drivers in the 6T will individually receive more power than the drivers in the 16B consequently limiting headroom of the system Please refer to the diagram of Possible Speaker Configuration on page 8 for alternative configurations CAUTION Take great care in stacking speakers Make sure locked wheels and rubber feet are sitting correctly in the cabinet recesses Taller configuration stacks will have higher centers of gravity and therefore less stability DO NOT try to move speakers and amps stacked on each other A large loudspeaker enclosure falling could cause you or others serious injury Take the greatest of care when transporting your rig Speakers should be rolled on casters individually and not stacked when doing so Do not take any unnecessary short cuts that you may regret ALWAYS LOCK FRONT WHEELS LIKE THIS ON THE GROUND SPEAKER THIS WILL GREATLY IMPROVE STABILITY WHEN STACKING CABINETS pP Phil Jones Bass Matching Speakers to amplifiers Many amplifier companies specify using 4 or 8Q speakers In reality there 1s not such thing as a speaker with these constant impedance ratings Typically 4 or 80 ratings are what are referred to as the minimum impedance and that will determine what is a safe load for your amplifier It is easily possible for 8Q speaker to vary from 8 to 400 or more Some speakers that are rated at 80 may have a lower actual rating
9. plifier s tone controls will cause greater excursion on the speaker cones pP Phil Jones Bass PJB bass instrument speakers were developed with a focus to overcome the problem of power compression and this is one of the reasons they outperform competitive products both in sound quality and power handling Warranty Information PJB speakers have a warranty period of 2 years starting from the date of purchase The buyer must complete and return the enclosed warranty card within 14 days of purchase This warranty covers defect in materials or workmanship that occurs in normal use Within warranty period PJB will repair or replace the defect unit free of labor and parts charge It is the buyer s responsibility to use the speakers strictly according to instructions written in this manual This warranty is not transferable it is provided to original owner only Damage defects caused by the following conditions are not covered by this warranty Improper handling neglect or failure to operate the unit m compliance with the instructions given in user manual Connection or operation of the speakers in any way that does not comply with the technical or safely regulations applicable in the country where the product 1s used Repairs or modifications by anyone other than authorized PJB service agent Damages defects caused by force majeure or any other condition that 1s beyond the control of PJB Should you need any warranty servi
10. r moisture 3 Damaged cables connected to it INTRODUCTION PJB loudspeakers are a radically different approach to dedicated bass instrument speakers not only in design philosophy but also in performance and build quality Fully understanding our speakers will enable you to get the best out of your playing ability and sound On the surface the PJB cabinet may look somewhat of a gimmick to some However behind this unique appearance 1s a very solid scientific foundation At the heart of your speaker cabinet is a specifically designed bass instrument transducer a tiny 5 driver in comparison to what is considered normal size bass reproducer There has been a mis perception that bigger drivers are better for bass loudspeakers The performance of PJB speakers can prove to you small drivers can be just as powerful and more agile in response than big drivers For more information of our technology we strongly suggest you to visit the tech info section of our website Many music instrument amplifier manufacturers simply stuff boxes with marketable driver configurations with little or no regard to the science of electro acoustics As a result bass players have had to compensate for the inadequacies of these speaker systems with effects EQ limiters and even their playing techniques Now for the first time bass players can be liberated with the totally radical new concept amplification from PJB pP Phil Jones Bass PJB speakers will onl
11. t each and every frequency The amplifier will produce different power levels if the frequency changes even if the volume is the same Finally we hear sound based on a logarithmic scale So in order to perceive a note twice as loud in theory we need 10 times the power to produce the perceived doubling of volume In reality another parameter comes into this already complex equation It s called Power Compression which is the losses in the loudspeaker units due to heating up and reducing efficiency of converting the amplifier s electrical power to acoustic energy Loudspeakers are complex devices and very inefficient converters of electrical energy especially when it comes to reproducing bass frequencies More than 90 of amp power goes to heating up the speakers and that is why the Power Compression factor is a major one It is physically impossible to create a loudspeaker that is 100 efficient or even close For bass instruments even 20 efficiency is almost impossible unless you are a billionaire Two limiting factors determine the power handling of a bass speaker One is the ability to withstand the heat buildup before the unit goes up on smoke The other is the excursion capability of the cone The cone will move in and out further not only with volume increase but also as you play lower notes An open B or E string will cause the cone to move more than an open G string at the same volume level Also boosting the bass EQ on your am
12. y perform at their best 1f they are used with other PJB speakers We recommend that you do not use them with any other brand name speakers If you do your overall sound quality will be greatly impaired as the other speakers will not be working as precisely in the same time or frequency domain as PJB speakers A comparable example is that you would not want to have a mixture of different tires on your car since road holding would be impaired PJB speakers have been calculated using the latest computer aided design software to enable them to work at the absolute optimum electro acoustic performance in various combinations Like your instrument you will only get the best from your speakers if they are set up correctly Setting up your speakers Ideally you should be connecting up your speakers to PJB amplifiers because these are designed to match perfectly together Before turning on any power connect up your speakers to the amplifier Keep the speaker cables as short as possible We recommend the PJB speaker cables Only Speakon connectors are used on all our cabinets and amplifiers because they are simply better suited for high current applications than 34 inch jacks The 9B 16B and 24B enclosures can be used singularly but there will be a great sonic improvement if you combine these cabinets with the 6T or 8T The 6T is designed for use with 9B The ST will work with 16B or 24B This is because these configurations allow exactly the same power acr
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