Download OWNERS MANUAL

6T - 8T- 9B - 16B - 24B
LOUDSPEAKER ENCLOSURES
OWNER’S MANUAL
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
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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 or 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 is 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 misperception 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.
1
PJB speakers will only perform at their best if 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 electroacoustic 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 ¼ 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 8T will work
with 16B or 24B. This is because these configurations allow exactly the same power across 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.
2
Matching Speakers to amplifiers.
Many amplifier companies specify using 4 or 8Ω speakers. In reality, there is not such thing as a speaker
with these constant impedance ratings. Typically 4 or 8Ω 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 an 8Ω speaker to vary from 8 to 40Ω or more. Some speakers that are rated at 8Ω may have a lower
actual rating than 8Ω. 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 4Ω or even 2Ω can
handle any impedance from a high 32Ω down to 4 or 2Ω any anything in between. So if you have a
5.3Ω load, it will not bother your amp at all. It may be even perform better on this than a 4Ω 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
Impedance & Phase Response of PJB Speaker Cables versus Leading Brand’s Equivalent
3
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 both 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 at 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 amplifier’s tone controls will cause greater excursion on the speaker
cones.
4
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 in 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 is used;
Repairs or modifications by anyone other than authorized PJB service agent;
Damages/defects caused by force majeure or any other condition that is beyond the control of PJB.
Should you need any warranty service, 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
[email protected]
Serial Number: ______________________
Date Purchased: _____________________
Dealer: _______ _____________________
All PJB owners manuals can be downloaded form our website www.philjonesbass.com in PDF files.
5
LOUDSEAKER SPECIFICATIONS
Piranha
Cabinet
Systems
Minimum
Impedance
Ohms
6T
8T
9B
16B
24B
12
16
8.0
8.0
5.3
Maximum
dB at 10 feet
with
Rec. Amp
111dB
115dB
117dB
120dB
127dB
6T&9B
4.8
119dB
8T&16B
5.3
127dB
8T&24B
4.0
128dB
Equivalent
Conventional
Cabinet/Cone area
1 x 12”
2 x 10”
1 x 15”
4 x 10”
6 x 10”
or 4 x 12”
1 x 15” &
1x12”
6 x 10” or
4 x 12”
8x10” or
4 x 15”
6
Frequency
Range
Maximum
Power
Handling
Dimensions
HxWxD
(mm)
Net weight
Per speaker
50Hz – 15kHz
45Hz – 15kHz
40Hz – 15kHz
30Hz – 15kHz
25Hz – 15kHz
600W
800W
900W
1600W
2400W
330x520x445
395x625x495
458x520x445
700x625x495
965x625x495
24 Kg
33 Kg
36 Kg
58Kg
78 Kg
35Hz – 15kHz
1500W
-
-
27Hz – 15kHz
2400W
-
-
23Hz – 15kHz
3200W
-
-
7
POSSIBLE SPEAKER CONFIGURATIONS PER AMPLIFIER
P A SS V
I E
Hz
+4
OFF
L EV E L
Hz
L EV E L
Hz
L EV E L
GRA P HIC
500
P A RA MET RI C
dB
0
5
25
2 00
6
4
3 0 Hz
V OLUME
I NPUT
11
L EV E L
Hz
L EV E L
500
P A RA MET RI C
0
ON
5
30
3 0 Hz
4 0 Hz
-1 5dB
6 0 Hz
+ 15 dB
3 00
1 0 0H z 1 8 0H z
2K
-1 5dB
+ 15 dB
3 4 0H z 6 6 0H z 1 .3k Hz
3K
2 .6k Hz
1 5K
5 kHz
-1 5dB
+ 15 dB
5
V OLUME
I NPUT
6
2K
-1 5dB
+ 15 dB
3 4 0H z 6 6 0H z 1 .3k Hz
3K
2 .6k Hz
1 5K
5 kHz
-1 5dB
1 0 kH z
250
+ 15 dB
5
6
7
3
1 5 kH z
6
6
+
8
H EADP HON E
O UTPUT
O FF
9
1
10
0
P OWER
O UTPUT
FX S END
ON
V OL UME PEDAL
FX R ETURN
H EADP HON E
O UTPUT
7
3
1 0 kH z 1 5 kH z
9
10
0
8
6
+
0
6
6
O FF
9
2
+6
0
-
L INE N
I
3 00
1 8 0H z
0
6
250
4
8
2
1
M AX
0
C OM PR ESS ION
2 00
7
3
L IMI T E R
25
6
4
B A SS
1 0 0H z
0
0
M AX
C OM PR ESS ION
P OWER
WATTS
-2 5
A CTI V E
6 0 Hz
2
+6
-
Hz
4 0 Hz
9
10
0
L EV E L
+ 15 dB
4
8
2
1
Hz
GRA P HIC
dB
-1 5dB
7
3
L IMI T E R
+4
OFF
P OWER
WATTS
-2 5
ON
B A SS
A CTI V E
L INE N
I
P A SS V
I E
10
1
0
P OWER
O UTPUT
FX S END
ON
V OL UME PEDAL
FX R ETURN
P A SS V
I E
+4
Hz
GRA P HIC
OFF
L EV E L
Hz
L EV E L
Hz
L EV E L
500
P A RA MET RI C
dB
0
5
25
30
6
4
3 0 Hz
V OLUME
I NPUT
L EV E L
Hz
L EV E L
500
P A RA MET RI C
Hz
+4
OFF
L EV E L
Hz
L EV E L
Hz
L EV E L
500
P A RA MET RI C
GRA P HIC
dB
0
5
4
3 0 Hz
2 00
-1 5dB
+ 15 dB
3 00
2K
-1 5dB
+ 15 dB
3K
1 5K
-1 5dB
M AX
0
C OM PR ESS ION
6 0 Hz
+ 15 dB
3 00
1 0 0H z 1 8 0H z
2K
-1 5dB
+ 15 dB
3 4 0H z 6 6 0H z 1 .3k Hz
3K
2 .6k Hz
1 5K
5 kHz
-1 5dB
1 0 kH z
3 00
1 0 0H z
1 8 0H z
2K
-1 5dB
+ 15 dB
3 4 0H z 6 6 0H z 1 .3k Hz
3K
2 .6k Hz
1 5K
5 kHz
-1 5dB
1 0 kH z
5
4
8
3 0 Hz
4 0 Hz
6 0 Hz
1 0 0H z 1 8 0H z
3 4 0H z 6 6 0H z
1 .3k Hz 2 .6k Hz
5 kHz
6
6
5
6
8
0
+
8
6
0
0
6
6
0
P OWER
O UTPUT
FX S END
6
0
P OWER
O UTPUT
V OL UME PEDAL
FX R ETURN
ON
SIX-PAK
9B
4.8-OHMS
SIX-PAK
12B
4-OHMS
9B
8-OHMS
12B
POSITION 1
6-OHMS
+4
Hz
GRA P HIC
OFF
L EV E L
Hz
L EV E L
Hz
L EV E L
500
P A RA MET RI C
dB
0
5
25
30
6
3 0 Hz
V OLUME
I NPUT
11
P A SS V
I E
Hz
+4
L EV E L
Hz
L EV E L
L EV E L
Hz
GRA P HIC
OFF
500
P A RA MET RI C
dB
0
5
L EV E L
Hz
L EV E L
500
P A RA MET RI C
3 0 Hz
+4
GRA P HIC
L EV E L
Hz
L EV E L
Hz
L EV E L
500
P A RA MET RI C
dB
0
5
6 0 Hz
+ 15 dB
1 0 0H z
3 00
2K
1 8 0H z 3 4 0H z
+6
-1 5dB
+ 15 dB
6 6 0H z 1 .3k Hz
3K
2 .6k Hz
1 5K
5 kHz
-1 5dB
1 0 kH z
5
11
6
+
4 0 Hz
6 0 Hz
+ 15 dB
1 0 0H z
3 00
2K
1 8 0H z 3 4 0H z
-1 5dB
+ 15 dB
6 6 0H z 1 .3k Hz
3K
2 .6k Hz
1 5K
5 kHz
-1 5dB
1 0 kH z
2K
-1 5dB
+ 15 dB
6 6 0H z 1 .3k Hz
3K
2 .6k Hz
1 5K
5 kHz
-1 5dB
250
+ 15 dB
5
6
7
3
1 0 kH z 1 5 kH z
6
6
+
H EADP HON E
O UTPUT
8
O FF
9
1
0
P OWER
O UTPUT
11
FX S END
ON
V OL UME PEDAL
FX R ETURN
250
+ 15 dB
5
6
7
3
1 5 kH z
H EADP HON E
O UTPUT
8
6
0
+
0
6
6
O FF
9
2
+6
-
6
7
3
6
0
6
3 00
1 8 0H z 3 4 0H z
10
1
0
P OWER
O UTPUT
11
FX S END
ON
-
250
+ 15 dB
1 5 kH z
0
1 0 0H z
0
6
L INE IN
H EADP HON E
O UTPUT
8
M AX
0
C OM PR ESS ION
V OL UME PEDAL
FX R ETURN
O FF
9
10
1
0
P OWER
O UTPUT
11
FX S END
ON
V OL UME PEDAL
FX R ETURN
P OWER
WATTS
-2 5
6
25
30
3
2 00
-1 5dB
+ 15 dB
3 00
2K
-1 5dB
+ 15 dB
3K
1 5K
-1 5dB
4 0 Hz
6 0 Hz
1 0 0H z
1 8 0H z 3 4 0H z
6 6 0H z 1 .3k Hz
2 .6k Hz
5 kHz
1 0 kH z 1 5 kH z
6
7
3
9
10
V OLUME
I NPUT
5
4
3 0 Hz
8
2
1
250
+ 15 dB
7
B A SS
0
4 0 Hz
2
11
-
Hz
-1 5dB
4
89
V OLUME
I NPUT
3 0 Hz
9
V OLUME
I NPUT
P OWER
WATTS
2 00
7
0
-1 5dB
4
8
0
Hz
25
30
6
1
2 00
7
2
1
L EV E L
0
5
4
3
2
+ 15 dB
0
P OWER
25
30
6
4
3
LM
I IT ER
Hz
GRA P HIC
dB
-2 5
ON
LM
I IT ER
M AX
0
C OM PR ESS ION
M AX
0
C OM PR ESS ION
WATTS
-2 5
ON
B A SS
A CTI V E
+4
OFF
B A SS
6 0 Hz
2
+6
-
A CTI V E
4 0 Hz
9
0
P A SS V
I E
-1 5dB
4
8
2
1
L INE IN
2 00
7
4
3
L IMI T E R
P OWER
WATTS
-2 5
ON
B A SS
4
ON
FX R ETURN
A CTI V E
OFF
O FF
FX S END
FX R ETURN
O FF
FX S END
P A SS V
I E
ON
H EADP HON E
O UTPUT
9
V OL UME PEDAL
11
V OL UME PEDAL
L INE N
I
L IMI T E R
8
10
P OWER
O UTPUT
-
-
SIX-PAK
12-OHMS
6
6
6
6
0
+
0
H EADP HON E
O UTPUT
8
2
+
-
M AX
0
C OM PR ESS ION
7
0
0
ON
1
+
0
6
M AX
0
C OM PR ESS ION
P A SS V
I E
6
1
+
6
O FF
9
10
1
9
2
+6
V OLUME
I NPUT
-
L INE N
I
5
3
2
6
H EADP HON E
O UTPUT
7
3
6
H EADP HON E
O UTPUT
7
3
1 0 kH z 1 5 kH z
9
1
A CTI V E
250
+ 15 dB
1 5 kH z
6
250
+ 15 dB
1 5 kH z
2
+
250
+ 15 dB
7
2
0
4 0 Hz
9
P OWER
25
30
6
3
L IMI T E R
-1 5dB
4
8
10
WATTS
-2 5
ON
B A SS
2 00
7
V OLUME
I NPUT
L INE IN
P A SS V
I E
L INE N
I
+ 15 dB
0
M AX
0
C OM PR ESS ION
P OWER
WATTS
25
30
6
1
A CTI V E
6 0 Hz
+6
11
-
Hz
4 0 Hz
9
10
0
L EV E L
0
5
4
3
2
0
-1 5dB
4
8
2
1
Hz
GRA P HIC
dB
-2 5
ON
LM
I IT ER
2 00
7
3
LM
I IT ER
+4
OFF
B A SS
A CTI V E
P OWER
WATTS
-2 5
ON
B A SS
A CTI V E
L INE IN
P A SS V
I E
O FF
9
1
0
P OWER
O UTPUT
FX S END
ON
V OL UME PEDAL
FX R ETURN
6T
9B
4.8-OHMS
12B
POSITION 2
10.7-OHMS
6T
12B
4-OHMS
16B
8-OHMS
9B
9B
4-OHMS
8T
12B
6.4-OHMS
12B
12B
3-OHMS
8T
16B
5.3-OHMS
24B
5.3-OHMS
NEVER
STACK
ON TOP
8T
24B
4-OHMS
12B
24B
3.6-OHMS
8T
12B
12B
4-OHMS
8
24B & 24B
2.7-OHMS