Thump th-15a User manual

5)" owner’s manual

2
IMPORTANT SAFETY
INSTRUCTIONS
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any ventilation openings. Install in accordance
with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat
registers, stoves, or other apparatus (including amplifiers) that
produce heat.
9. Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades with
one wider than the other. A grounding-type plug has two
blades and a third grounding prong. The wide blade or
the third prong are provided for your safety. If the provided
plug does not fit into your outlet, consult an electrician for
replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched
particularly at plugs, convenience receptacles, and the point
where they exit from the apparatus.
11. Only use attachments/accessories specified by the
manufacturer.
12. Unplug this apparatus during lightning storms or when unused
for long periods of time.
13. Refer all servicing to qualified service personnel. Servicing
is required when the apparatus has been damaged in any
way, such as power-supply cord or plug is damaged, liquid
has been spilled or objects have fallen into the apparatus,
the apparatus has been exposed to rain or moisture, does not
operate normally, or has been dropped.
14. This apparatus has been designed with Class-I construction
and must be connected to a mains socket outlet with a
protective earthing connection (the third grounding prong).
15. This apparatus has been equipped with a single pole rocker
style AC mains power switch. This switch is on the rear panel
and should remain readily accessible to the the user. Note
that when the power switch is not in the “ON” position, the
apparatus is still energized, and internal hazardous voltages
are still present.
16. This apparatus does not exceed the Class A/Class B
(whichever is applicable) limits for radio noise emissions
from digital apparatus as set out in the radio interference
regulations of the Canadian Department of Communications.
ATTENTION —Le présent appareil numérique n’émet pas de bruits radioélectriques
dépassant las limites applicables aux appareils numériques de class A/de class B
(selon le cas) prescrites dans le règlement sur le brouillage radioélectrique édicté
par les ministere des communications du Canada.
17. Exposure to extremely high noise levels may cause permanent
hearing loss. Individuals vary considerably in susceptibility to
noise-induced hearing loss, but nearly everyone will lose some
hearing if exposed to sufficiently intense noise for a period of
time. The U.S. Government’s Occupational Safety and Health
Administration (OSHA) has specified the permissible noise
level exposures shown in the following chart.
According to OSHA, any exposure in excess of these permissible limits
could result in some hearing loss. To ensure against potentially dangerous
exposure to high sound pressure levels, it is recommended that all persons
exposed to equipment capable of producing high sound pressure levels
use hearing protectors while the equipment is in operation. Ear plugs or
protectors in the ear canals or over the ears must be worn when operating
the equipment in order to prevent permanent hearing loss if exposure is in
excess of the limits set forth here.
WARNING — To reduce the risk of fire or electric shock,
do not expose this appliance to rain or moisture.
Duration Per Day Sound Level dBA, Typical
In Hours Slow Response Example
8 90 Packed garage concert
6 92
4 95 VW Bus Peace Train
3 97
2 100 Cranked psychedelic tunes
1.5 102
1 105 High speed chase on C.H.I.P.s
0.5 110
0.25 or less 115 Loudest parts at a Heavy Metal concert
CAUTION AVIS
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK
DO NOT REMOVE COVER (OR BACK)
NO USER-SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED PERSONNEL
ATTENTION: POUR EVITER LES RISQUES DE CHOC
ELECTRIQUE, NE PAS ENLEVER LE COUVERCLE. AUCUN
ENTRETIEN DE PIECES INTERIEURES PAR L'USAGER. CONFIER
L'ENTRETIEN AU PERSONNEL QUALIFIE.
AVIS: POUR EVITER LES RISQUES D'INCENDIE OU
D'ELECTROCUTION, N'EXPOSEZ PAS CET ARTICLE
A LA PLUIE OU A L'HUMIDITE
The lightning flash with arrowhead symbol within an equilateral
triangle is intended to alert the user to the presence of uninsulated
“dangerous voltage” within the product’s enclosure that may be
of sufficient magnitude to constitute a risk of electric shock to persons.
Le symbole éclair avec point de flèche à l'intérieur d'un triangle
équilatéral est utilisé pour alerter l'utilisateur de la présence à
l'intérieur du coffret de “voltage dangereux” non isolé d'ampleur
suffisante pour constituer un risque d'éléctrocution.
The exclamation point within an equilateral triangle is intended to
alert the user of the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the appliance.
Le point d'exclamation à l'intérieur d'un triangle équilatéral est
employé pour alerter les utilisateurs de la présence d'instructions
importantes pour le fonctionnement et l'entretien (service) dans le
livret d'instruction accompagnant l'appareil.
FCC Information
Note: This device complies with Part 15 of the FCC rules. This
equipment also complies with the rules for Canada under ICES-003.
Operation is subject to the following two conditions: (1) This device may
not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired
operation.

Part No. 0019364 Rev. A 09/06
©2006 LOUD Technologies Inc. All Rights Reserved. 3
What me, read a manual?
Before you begin, please make sure you read the Safety Instructions on page 2 and
Getting Started on page 4.
Your new TAPCO®TH-15A active loudspeakers are designed to set up quickly and
operate easily. We know it’s often seen as a sign of weakness to read a manual, along with
asking for directions when lost, but we hope you will read the rest of the manual, at least
while nobody is looking.
It is important to keep your receipt in a safe place, and not a bad idea to write your
product information here for future reference (i.e., insurance claims, tech support, return
authorization, etc.).
Contents
Important Safety Instructions...................................2
Getting Started .........................................................4
Introduction...............................................................5
Hookup Diagrams.....................................................6
TAPCO TH-15A Features ...........................................7
Rear Panel Description .......................................7
1. INPUT ..............................................................7
2. OUTPUT...........................................................7
3. LEVEL..............................................................7
4. OL Indicator ..................................................7
5. HIGH EQ.........................................................7
6. MID EQ...........................................................7
7. MID FREQ.......................................................7
8. LOW EQ .........................................................7
9. DIRECT/EQ Switch.........................................7
10. POWER Switch ............................................7
11. Line Cord Socket and Fuse .......................8
Protection Circuits ...............................................8
Input Signal Wiring...............................................8
Placement ...........................................................8
Appendix A: Service Information............................9
Appendix B: Connections......................................11
Appendix C: TH-15A Specifications ......................12
TAPCO LIMITED WARRANTY....................................15
Don’t forget to visit our website at www.tapcoworld.com
for more information about this and other TAPCO products.
Product Serial #:
Purchased at:
Date of purchase:

4
Getting Started
The following steps will
help you set up your
loudspeakers quickly.
INITIAL SETTINGS:
1. Turn the LEVEL control on the rear panel all the way
down.
2. Set the DIRECT/EQ switch out (DIRECT).
3. Turn the POWER switch OFF.
CONNECTIONS:
1. Connect the line-level signal from your mixer (or
other signal source) to the IN jack on the TH-15A
rear panel (XLR connector).
2. Connect the supplied AC power cord to the IEC
socket on the back of the loudspeaker. Plug the
other end into an AC outlet properly configured
with the correct voltage as indicated just below
the IEC socket.
TURN IT ON:
1. Turn the POWER switch ON.
2. Start your signal source (tape deck, CD, DAW, or
whatever), but leave the master level control on
your mixer down.
3. Slowly turn up the LEVEL control on the TH-15A to
the “U” (unity gain) mark at the center position.
4. Adjust the master volume on your mixer to a
comfortably loud listening level. If the volume from
the speakers gets really loud, really fast, try turning
down the LEVEL control on the TH-15As a bit. If the
speakers don’t get loud enough, turn up the LEVEL
control to achieve a good balance of master
volume control and loudness from the speaker.
Now that you have your loudspeakers
working, it’s time to hunker down and read
the rest of this manual…especially the
following:
ADDITIONAL TIDBITS OF WIDSDOM:
• Never listen to loud music for prolonged periods.
Please see the Safety Instructions on page 2 for
information on hearing protection.
• When you shut down your equipment, turn off
the TH-15A loudspeakers first to prevent thumps
and other noises generated by any upstream
equipment from coming out the speakers. When
powering up, turn on the TH-15As last.
• Save the shipping boxes and packing materials!
You may need them someday. Besides, your cat
will love playing in them and jumping out at you
unexpectedly. Remember to pretend like you are
surprised!
• Save your sales receipt in a safe place.
• Record the serial number in the space provided on
page 3, along with where and when you bought it.

5
Here’s a quick look at all the features packed into the TH-15A loudspeakers:
• Flat frequency response (–10 dB, 40 Hz to 20 kHz)
• 1” high-frequency compression driver
• 15” low-frequency woofer
•
Convenient portable design, with integrated
handles in both sides and top
• Ported, bass reflex design for enhanced bass
performance
• 50 watt HF and 150 watt LF power amplifiers
• Low-frequency over-excursion protection
• High-strength lightweight cabinet constructed of
polypropylene
• High-density adiabatic fiberfill absorbs internal
reflections
• Balanced Mic/Line XLR input and thru connectors
• 24 dB/octave crossover at 3 kHz
• Adjustable input level control
• LF equalization provides ±15 dB at 80 Hz and below
• MF equalization provides ±15 dB with sweepable
frequency from 100 Hz to 8 kHz
• HF equalization provides ±15 dB at 12 kHz and
above
• EQ bypass (DIRECT) switch
• Rear panel power switch
• Pole-mount socket
Introduction
Thank you for choosing the TAPCO TH-15A active loudspeakers. The TAPCO product
line hails back to the days of TAPCO Corporation, Greg Mackie’s first company. TAPCO
revolutionized the audio industry back in 1969 with the very first 6-channel mixer specifically
designed for keyboards and rock ‘n’ roll.
In essence, TAPCO redefined the price/performance ratio and made high-quality
professional audio equipment accessible to virtually anyone. Today, TAPCO is reborn
with the same ideals and is backed by the world-class engineering and manufacturing
horsepower of LOUD Technologies.
These versatile compact loudspeakers can be used in a variety of applications. The
durable, lightweight enclosure is designed with a socket in the bottom for pole-mounting.
In addition, it can be placed on its side as a floor monitor.
The TH-15A active loudspeakers are packed with features and designed to produce
transparent and uncolored sound for PA systems and sound reinforcement. The two-way bass
reflex (ported) design provides an amazingly flat frequency response from 40 Hz to 20 kHz.
There are many benefits to integrating an active crossover, power amplifiers, and drivers
into a single cabinet, and we’ve taken full advantage of these benefits in the design of
the TH-15A.
• The crossover point is designed so that the high and low-frequency drivers are fed only
the frequencies that they are best able to reproduce.
• The amplifiers are designed to provide maximum acoustic output from the speakers, yet
minimize the danger of speaker damage due to overdriving.
• The connecting wire between the amplifier outputs and the drivers are kept to an
absolute minimum so the damping factor of the amplifier isn’t compromised by the
resistance of long speaker cables.
• The acoustic sum of the outputs from the two drivers are optimized electronically, as well
as physically, so the amplitude response is unity and the phase difference is minimal.
In short, all the complex interconnected components in the system are designed to work
in harmony with each other to produce the best possible sound.
TAPCO van (a.k.a. micro bus)

6
Hookup Diagrams
Stereo Speaker Hookup
TH-15A ACTIVE LOUDSPEAKER
U
120 VAC 60HZ 320W
POWER OL
LEVEL
MID
FREQ
8k
100
+15-15
U
+15-15
U
HIGH
12kHz
LOW
80Hz
+15-15
U
MID
DIRECT
EQ
OUT
EQ
IN
MAX
TH-15A ACTIVE LOUDSPEAKER
U
120 VAC 60HZ 320W
POWER OL
LEVEL
MID
FREQ
8k
100
+15-15
U
+15-15
U
HIGH
12kHz
LOW
80Hz
+15-15
U
MID
DIRECT
EQ
OUT
EQ
IN
MAX
Mixer or
Preamplifier
Right
Line level
Output
Left
Line level
Output
POWER
PHANTOM
48V
3
MAIN
MIX
ALT
4
ALT
MASTER
AUX SEND
OL
SOURCESELECT
VARIATIONS
RUDE SOLO
0dB= 0dBu
SOLO
OL
SOLO
OL
SOLO
OL
SOLO
OL
SOLO
OL
SOLO
1
1
PRE
MUTEMUTE
ALT
3/4
EQ
1
MON
2
FX
AUX
SEND
AUX
RETURN
FX
RETURN
MIC
INPUT
11
LINE
CLIP
LEVEL
SET
RTRN
TO
AUX1
+10
+5
+2
0
-2
-5
-20
BAL/UNBAL
GAIN
SOLO
SOLO
PHONES
FOOTSW
AUX RETURN
2
FX
1
MON
FX RETURNAUX SEND
(MON0)
L
R
L
R
MAIN
ALT 3-4
INTERNAL EFFECTS
CONTROL ROOM
FX OL
FX
INPUT
LEVEL
ROTARY
THEATER
FLANGER
ROOM
STAGE
SPRING
TREMOLD
FLANGER+REV
HALL
CHORUS+REV
CATHEDRAL
STUDIO
STEREO DELAY
ECHO
CHORUS
ECHO+REV
1
2
3
4
5
6
7
89
10
11
12
13
14
15
16
75Hz
2
2
PRE
MUTEMUTE
ALT
3/4
EQ
1
MON
2
FX
AUX
SEND
MIC
INPUT
11
LINE
BAL/UNBAL
GAIN
75Hz
3
3
PRE
MUTEMUTE
ALT
3/4
EQ
1
MON
2
FX
AUX
SEND
MIC
INPUT
11
LINE
BAL/UNBAL
GAIN
75Hz
4
4
PRE
MUTEMUTE
ALT
3/4
EQ EQ
1
MON
2
FX
AUX
SEND
MIC
INPUT
11
LINE
BAL/UNBAL
GAIN
75Hz
PRE
ALT
3/4
1
MON
2
FX
AUX
SEND
PRE
ALT
3/4
1
MON
2
FX
AUX
SEND
1
MON
2
FX
L
R
(MONO)
5
6
LINE
BAL
OR
UNBAL
+4
-10
EQ
L
R
(MONO)
7
8
LINE
BAL
OR
UNBAL
FX
BYPASS
MAIN
MIX
CD/
TAPE
ALT
3-4
INPUT/OUTPUT
IN OUT
L
R
CD/TAPE
MAX
TAPETO
MAIN
SOLO
MODE
CTRLROOM/
PHONES
5
6
7
8
MUTEMUTE MUTEMUTE
PAN PAN PAN PAN BAL BAL
PFL
AFL
0 0 0 0
+4
-10
+15-15
U
+15-15
U
+15-15
U
HIGH
MID
2.5kHz
12kHz
LOW
80Hz
+15-15
U
+15-15
U
+15-15
U
HIGH
MID
2.5kHz
12kHz
LOW
80Hz
+15-15
U
+15-15
U
+15-15
U
HIGH
MID
2.5kHz
12kHz
LOW
80Hz
+15-15
U
+15-15
U
+15-15
U
HIGH
MID
2.5kHz
12kHz
LOW
80Hz
+15-15
U
+15-15
U
+15-15
U
HIGH
MID
2.5kHz
12kHz
LOW
80Hz
+15-15
U
+15-15
U
+15-15
U
HIGH
MID
2.5kHz
12kHz
LOW
80Hz
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15 +15
U
RL RL RL RL RL RL
U
OO
dB
30
20
10
40
50
5
5
60
10
U
OO
dB
30
20
10
40
50
5
5
60
10
U
OO
dB
30
20
10
40
50
5
5
60
10
U
OO
dB
30
20
10
40
50
5
5
60
10
U
OO
dB
30
20
10
40
50
5
5
60
10
U
OO
dB
30
20
10
40
50
5
5
60
10
U
OO
dB
30
20
10
40
50
5
5
60
10
OOOOOO
U
dB
30
20
10
40
50
5
5
60
10
U
dB
30
20
10
40
50
5
5
60
10
U
dB
30
20
10
40
50
5
5
60
10
MAX
+15 +15
TH-15A ACTIVE LOUDSPEAKER
U
120 VAC 60HZ 320W
POWER OL
LEVEL
MID
FREQ
8k
100
+15-15
U
+15-15
U
HIGH
12kHz
LOW
80Hz
+15-15
U
MID
DIRECT
EQ
OUT
EQ
IN
MAX
TH-15A ACTIVE LOUDSPEAKER
U
120 VAC 60HZ 320W
POWER OL
LEVEL
MID
FREQ
8k
100
+15-15
U
+15-15
U
HIGH
12kHz
LOW
80Hz
+15-15
U
MID
DIRECT
EQ
OUT
EQ
IN
MAX
TH-15A ACTIVE LOUDSPEAKER
U
120 VAC 60HZ 320W
POWER OL
LEVEL
MID
FREQ
8k
100
+15-15
U
+15-15
U
HIGH
12kHz
LOW
80Hz
+15-15
U
MID
DIRECT
EQ
OUT
EQ
IN
MAX
TH-15A ACTIVE LOUDSPEAKER
U
120 VAC 60HZ 320W
POWER OL
LEVEL
MID
FREQ
8k
100
+15-15
U
+15-15
U
HIGH
12kHz
LOW
80Hz
+15-15
U
MID
DIRECT
EQ
OUT
EQ
IN
MAX
Thru
Thru
Mixer or
Preamplifier
Right
Line level
Output
Left
Line level
Output
POWER
PHANTOM
48V
3
MAIN
MIX
ALT
4
ALT
MASTER
AUX SEND
OL
SOURCESELECT
VARIATIONS
RUDE SOLO
0dB= 0dBu
SOLO
OL
SOLO
OL
SOLO
OL
SOLO
OL
SOLO
OL
SOLO
1
1
PRE
MUTEMUTE
ALT
3/4
EQ
1
MON
2
FX
AUX
SEND
AUX
RETURN
FX
RETURN
MIC
INPUT
11
LINE
CLIP
LEVEL
SET
RTRN
TO
AUX1
+10
+5
+2
0
-2
-5
-20
BAL/UNBAL
GAIN
SOLO
SOLO
PHONES
FOOTSW
AUX RETURN
2
FX
1
MON
FX RETURNAUX SEND
(MON0)
L
R
L
R
MAIN
ALT 3-4
INTERNAL EFFECTS
CONTROL ROOM
FX OL
FX
INPUT
LEVEL
ROTARY
THEATER
FLANGER
ROOM
STAGE
SPRING
TREMOLD
FLANGER+REV
HALL
CHORUS+REV
CATHEDRAL
STUDIO
STEREO DELAY
ECHO
CHORUS
ECHO+REV
1
2
3
4
5
6
7
89
10
11
12
13
14
15
16
75Hz
2
2
PRE
MUTEMUTE
ALT
3/4
EQ
1
MON
2
FX
AUX
SEND
MIC
INPUT
11
LINE
BAL/UNBAL
GAIN
75Hz
3
3
PRE
MUTEMUTE
ALT
3/4
EQ
1
MON
2
FX
AUX
SEND
MIC
INPUT
11
LINE
BAL/UNBAL
GAIN
75Hz
4
4
PRE
MUTEMUTE
ALT
3/4
EQ EQ
1
MON
2
FX
AUX
SEND
MIC
INPUT
11
LINE
BAL/UNBAL
GAIN
75Hz
PRE
ALT
3/4
1
MON
2
FX
AUX
SEND
PRE
ALT
3/4
1
MON
2
FX
AUX
SEND
1
MON
2
FX
L
R
(MONO)
5
6
LINE
BAL
OR
UNBAL
+4
-10
EQ
L
R
(MONO)
7
8
LINE
BAL
OR
UNBAL
FX
BYPASS
MAIN
MIX
CD/
TAPE
ALT
3-4
INPUT/OUTPUT
IN OUT
L
R
CD/TAPE
MAX
TAPETO
MAIN
SOLO
MODE
CTRLROOM/
PHONES
5
6
7
8
MUTEMUTE MUTEMUTE
PAN PAN PAN PAN BAL BAL
PFL
AFL
0 0 0 0
+4
-10
+15-15
U
+15-15
U
+15-15
U
HIGH
MID
2.5kHz
12kHz
LOW
80Hz
+15-15
U
+15-15
U
+15-15
U
HIGH
MID
2.5kHz
12kHz
LOW
80Hz
+15-15
U
+15-15
U
+15-15
U
HIGH
MID
2.5kHz
12kHz
LOW
80Hz
+15-15
U
+15-15
U
+15-15
U
HIGH
MID
2.5kHz
12kHz
LOW
80Hz
+15-15
U
+15-15
U
+15-15
U
HIGH
MID
2.5kHz
12kHz
LOW
80Hz
+15-15
U
+15-15
U
+15-15
U
HIGH
MID
2.5kHz
12kHz
LOW
80Hz
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15
U
+15 +15
U
RL RL RL RL RL RL
U
OO
dB
30
20
10
40
50
5
5
60
10
U
OO
dB
30
20
10
40
50
5
5
60
10
U
OO
dB
30
20
10
40
50
5
5
60
10
U
OO
dB
30
20
10
40
50
5
5
60
10
U
OO
dB
30
20
10
40
50
5
5
60
10
U
OO
dB
30
20
10
40
50
5
5
60
10
U
OO
dB
30
20
10
40
50
5
5
60
10
OOOOOO
U
dB
30
20
10
40
50
5
5
60
10
U
dB
30
20
10
40
50
5
5
60
10
U
dB
30
20
10
40
50
5
5
60
10
MAX
+15 +15
Daisy-Chaining Two Speakers Per Side

7
TAPCO TH-15A Features
REAR PANEL DESCRIPTION
This is where you connect your signal to
the loudspeaker and make adjustments to
the frequency response of the speaker to
match the loudspeaker’s location and your
room’s environment.
1. INPUT
This is a female XLR-type connector that accepts
a balanced mic or line-level signal from a mixing
console or other signal source.
2. OUTPUT
This is a male XLR-type
connector that produces
exactly the same signal that is
connected to the input jack.
Use it to daisy-chain several
TH-15A’s together off the same
signal source.
3. LEVEL
The LEVEL control adjusts the
overall signal level at the input
to the built-in power amplifiers.
It ranges from Off (∞) to MAX
(maximum gain), with unity
gain at the center position (12
o’clock).
•
The TH-15A is designed to
operate with a +4 dBu signal
when the LEVEL control is at
the U (center) position.
• The TH-15A can accept
up to a +20 dBu signal by
turning down the INPUT
LEVEL control accordingly.
• NEVER connect the output
of an amplifier directly to
the input of the TH-15A. This could damage the
active input circuitry of the loudspeaker.
4. OL Indicator
The OL (overload) indicator lights when the
amplifiers in the TH-15A are near the clipping point. It
is okay if the OL indicator blinks occasionally, because
this means that the transient peaks are just reaching
the maximum output of the amplifiers and you are
getting the most from your TH-15As.
If the OL indicator is blinking frequently or lighting
continuously, turn down the LEVEL control [3] on
the TH15A or turn down the signal at it source (e.g.,
the mixing console) until the OL indicator blinks
occasionally or not at all.
5. HIGH EQ
This control gives you up to 15 dB boost or cut
above 12 kHz, and it is also flat at the center position
(U). Use it to add sizzle to cymbals, and an overall
sense of transparency or edge to the keyboards,
vocals, guitar, and bacon frying. Turn it down a little to
reduce sibilance, or to hide tape hiss.
6. MID EQ
This is a midrange EQ control that provides 15 dB
of boost or cut centered at any frequency between
100 Hz and 8 kHz. The MID EQ circuit is flat (no boost
or cut) at the center position. This frequency range
includes most vocals (male at
the lower end of the range and
female at the upper end of the
range), and the fundamentals
and harmonics for many
instruments.
7. MID FREQ
This knob ranges from 100 Hz
to 8 kHz and determines the
center frequency for the MID
EQ filter. This allows you to zero
in on the precise narrow band
of frequencies you want to
have affected by the MID EQ.
8. LOW EQ
This control gives you up to
15 dB of boost or cut below 80 Hz.
The circuit is flat (no boost or
cut) at the center position. This
frequency range represents
the punch in bass drums,
bass guitar, fat synth patches,
and some really serious male
singers.
9. DIRECT/EQ Switch
This switch allows you to bypass the EQ section.
When the switch is out (DIRECT), the EQ section is
bypassed and the EQ knobs have no effect on the
signal. When the switch is pushed in (EQ), the EQ
controls can be used to tailor the frequency response
of the TH-15As.
10. POWER Switch
Use this switch to turn the active loudspeakers on
and off. The indicating LED above the POWER switch
lights when the POWER switch is on and AC power
is available at the linecord socket. A second power
indicator is located on the front of the cabinet.
U
120 VAC 60HZ 320W
POWER OL
LEVEL
MID
FREQ
8k
100
+15-15
U
+15-15
U
HIGH
12kHz
LOW
80Hz
+15-15
U
MID
DIRECT
EQ
OUT
EQ
IN
TH-15A
ACTIVE SOUND
REINFORCEMENT LOUDSPEAKER
MAX
1
6
7
8
9
10
11
2
3
4
5

8
11. Line Cord Socket and Fuse
Connect the detachable line cord to this IEC socket
securely, and plug the other end into your AC outlet.
Make sure the AC power is matched to the AC power
indicated on the rear panel (under the IEC socket).
The fuse is located behind the fuse cover, at the
bottom of the IEC socket. See the “Troubleshooting”
section on page 9 for information about replacing
the fuse.
Protection Circuits
There are several protection mechanisms
designed into the TH-15A to safeguard
the loudspeakers and amplifiers from
inadvertent damage.
CAUTION: The protection
circuits are designed to
protect the loudspeakers
under reasonable and sensible
conditions. Should you choose
to ignore the warning signs
(i.e., frequent OL LED indications, excessive
distortion), you can still damage the speakers
in the TH-15A by overdriving them past the
point of amplifier clipping. Such damage is
beyond the scope of the warranty.
Overexcursion Protection
A 12 dB/octave high-pass filter at 40 Hz just prior
to the low-frequency amplifier prevents very low
frequencies from being amplified. Excessive low-
frequency energy below 40 Hz can damage the
woofer by causing it to “bottom out,” also known as
overexcursion, which is equivalent to a mechanical
form of clipping.
Thermal Protection
All amplifiers produce heat. The TH-15A is designed
to be efficient both electrically and thermally.
The amplifier module is mounted on a large
heatsink, which is cooled by convection where cool
air is drawn through it’s fins, carrying the heat away.
In order for this convection cooling to work efficiently,
it is important to provide adequate airspace behind
the loudspeaker. When you position the TH-15A, we
recommend leaving at least six inches of air space
behind it.
• If for some reason the heatsink gets too hot, a
built-in thermal switch activates and turns off the
amplifier. This protection operates independently
for the low-frequency and high-frequency
amplifiers. Therefore, it is possible for only the low
frequency or high frequency amplifier to shut
down while the other remains on.
• When the heatsink cools down to a safe
temperature, the thermal switch resets and normal
operation resumes.
• If the heatsink temperature again gets too hot, the
shutdown process repeats. Should this happen,
make sure that airflow to the rear of the cabinet
is not restricted. If the ambient air temperature
is very warm, try pointing a small fan toward the
heatsink to increase the airflow through the fins.
Driver Protection
Each driver has its own compression circuit, which
helps protect them from damaging transient peaks.
The compressors are designed to be transparent and
are not noticeable under normal operating conditions.
Input Signal Wiring
You should use high-quality, shielded
cable to connect the signal source to the IN
jack on the TH-15A.
• Foil shielded cables, such as Belden 8451,
8761, or 9501 are commonly used for
studio wiring.
• Microphone cables work well.
• The better the shield, the better the
immunity from externally induced noise
(like EMI and RFI). Route the cable away
from AC power cords and outlets. These
are common sources for hum in an audio
signal. You can purchase quality cables
from your Mackie dealer.
Placement
The TH-15A loudspeaker is designed to sit
on the floor or stage. It can be pole-mounted
via the built-in socket on the bottom of
the cabinet. Be sure the pole is capable of
supporting the weight of the TH-15A.
WARNING: The cabinet has
no rigging points and is not
suitable for rigging.
NEVER attempt to suspend
the TH-15A by its handles.
As with any powered components,
protect them from moisture. If you are
setting them up outdoors, make sure they
are under cover if you expect rain.

9
Appendix A: Service Information
No Sound
• Are the power LEDs on the front and rear panel
illuminated?
• Is the LEVEL control turned up?
• Is the signal source turned up? Make sure the
signal level from the mixing console (or whatever
device immediately precedes the loudspeaker) is
high enough to produce sound.
• If it’s a stereo pair, try switching them around.
For example, if a left speaker is presumed dead,
switch the left and right cords at the speakers. If
the problem switches sides, it’s not the TH-15A. It
could be a bad cable, or no signal from the mixer.
Bad Sound
• Is the input connector plugged completely into
the IN jack?
• Is something connected to the OUT jack?
Try unplugging it. If the sound improves, whatever
was plugged into the OUT jack may have affected
the signal.
• Is it loud and distorted? Reduce the signal level at
the mixer.
• If possible, listen to the signal source with
headphones plugged into the preamp stage. If it
sounds bad there, it’s not the loudspeaker.
• Too much bass or not enough bass? Move around
the room and see if the bass response changes.
It’s possible your listening position coincides with
a room mode where the low frequencies either
become exaggerated or nulled. If so, try moving
the loudspeakers to a different position, or moving
your listening position.
Noise/Hum
• Check the signal cable between the mixer and
the loudspeaker. Make sure all connections are
secure. These problems usually produce crackling
noises or hum.
• If you are using two or more TH-15A active
loudspeakers, try plugging them all into the same
AC outlet panel or outlet strip. The purpose for this
is to connect them all to the same earth ground
point and reduce the possibility of creating a
ground loop.
• If connecting an unbalanced output to the TH-15A
balanced input, make sure the shield is connected
to the unbalanced ground and to pin 1 of the XLR.
Warranty Service
Details concerning Warranty Service are spelled
out in the Warranty section on page 15.
If you think your TAPCO TH-15A has a problem, please
do everything you can to confirm it before calling for
service. Doing so might save you from the deprivation of
your loudspeaker and the associated suffering.
These may sound obvious to you, but here are
some things you can check. Read on.
Troubleshooting
No Power
• Our favorite question: Is it plugged in?
• Make sure the line cord is securely seated in the
line cord socket and plugged all the way into the
AC outlet.
• Make sure the AC outlet is live (check with a tester
or lamp).
• Is the POWER switch in the ON position?
• Are the power LEDs on the front and rear panel
illuminated? If not, make sure the AC outlet is live.
If so, refer to “No Sound” below.
• If the power LEDs are not illuminated, and you are
certain that the AC outlet is live, it is possible the
fuse has blown.
To remove and replace the fuse:
1. Disconnect the power cord from the IEC socket.
2. Remove the fuse drawer by prying it open with
a small screwdriver. It will slide all the way out.
3. Remove the fuse and replace it with an
equivalent-type fuse.
115 VAC unit: 3.15 amp slo-blo (T 3.15AL/250 V)
230 VAC unit: 2 amp slo-blo (T 2AL/250 V)
4. Replace the fuse drawer by pushing it all the
way back into the IEC socket.
If two fuses blow in a row, then something is very
wrong. See the “Repair” section on the next page
to find out what to do.
FUSE

10
Repair
Service for TAPCO products is available at a
factory-authorized service center. Service for TAPCO
products living outside the United States can be
obtained through local dealers or distributors.
If your loudspeaker needs service, follow these
instructions:
1. Review the preceding troubleshooting suggestions.
Please.
2. Call Tech Support at 1-877-827-2669, 7 AM to 5 PM
PST, to explain the problem and request a Service
Request Number. Have your loudspeaker’s serial
number ready. You must have a Service Request
Number before you can obtain factory-authorized
service.
3. Keep this owner’s manual and the detachable
linecord. We don’t need them to repair the
loudspeaker.
4. Pack the loudspeaker in its original package,
including endcaps and box. This is VERY
IMPORTANT. When you call for the Service
Request Number, please let Tech Support know if
you need new packaging. LOUD Technologies
is not responsible for any damage that occurs
due to non-factory packaging.
Lonely? Looking for that special someone?
Do you have a question about your TAPCO loudspeaker?
Please call our Technical Support chaps at 1-877-827-2669, Monday to Friday, from 7 AM to 5 PM PST.
After hours, visit www.tapcoworld.com and look under Talk To Us, or e-mail us at [e-mail]
5. Include a legible note stating your name,
shipping address (no P.O. boxes), daytime phone
number, Service Request Number, and a detailed
description of the problem, including how to
duplicate it.
6. Write the Service Request Number in BIG PRINT
on top of the box. Units sent without the Service
Request Number will be refused.
7. Tech Support will tell you where to ship the
loudspeaker for repair. We suggest insurance for all
forms of cartage.
8. You will need to contact the authorized service
center for their latest turn-around times. The
loudspeaker must be packaged in its original
packing box, and must have the Service Request
Number on the box. Once its repaired, the
authorized service center will ship it back, pre-paid
(if it was a warranty repair).
Note: Under the terms of the warranty, you must
ship or drop-off the unit to an authorized service
center. The return ground shipment is covered for
those units deemed by us to be under warranty.
Note: You must have a sales receipt from an
authorized TAPCO dealer to qualify for a warranty
repair.

11
Appendix B: Connections
XLR Connectors
XLR connectors are used to make balanced input
and through connections to the TH-15A. They are
wired as follows, according to standards specified by
the AES (Audio Engineering Society).
XLR Balanced Wiring
Pin 1 = Shield
Pin 2 = Hot (+)
Pin 3 = Cold (–)
2
2
31
1
SHIELD
COLD
HOT
SHIELD
COLD
HOT
3
SHIELD
COLD
HOT
3
2
1

12
Appendix C: TH-15A Specifications
Equalization
Low Frequency EQ: ±15 dB @ 80 Hz, shelving
Mid Frequency EQ: ±15 dB, bandpass,
sweepable from100 Hz to 8 kHz
High Frequency EQ: ±15 dB @ 12 kHz, shelving
Direct/EQ Switch: Bypasses EQ section
Protection Features
Over-excursion Protection:
Second-order sub-sonic filter
Thermal Protection: Independent amplifier
shutdown, auto reset
Driver Protection: Independent HF and LF
compressors
AC Power Requirements
US: 120 VAC, 60 Hz
Europe: 240 VAC, 50 Hz
Korea: 220 VAC, 60 Hz
Japan: 100 VAC, 50/60 Hz
AC Connector: 3-pin IEC 250 VAC, 20 A male
Fuse: 115 VAC: T 3.15 AL/250 V
230 VAC: T 2 AL/250 V
Power Consumption: 320 watts with music,
loud mix
20 watts quiescent (idle)
Construction Features
Basic Design: Asymmetrical Trapezoidal
Material: Polypropylene
Finish: Textured
Handles:
One on each side, one on top
Grille: Perforated metal with
weather-resistant coating
Display LEDs
Front: Power ON
Rear: Power ON, OL (overload)
Physical Dimensions and Weight
Dimensions
Height: 27.1 in/689 mm
Width: 16.8 in/427 mm
Depth: 11.7 in/296 mm
Weight: 36 lb/16.3 kg
Mounting Methods:
Pole-mountable via the built-in socket on the
bottom of the cabinet. Be sure the pole is
capable of supporting the weight of the TH-15A.
Disclaimer
Since we are always striving to make our products
better by incorporating new and improved materials,
components, and manufacturing methods, we
reserve the right to change these specifications at
any time without notice.
Acoustic Performance
Frequency Range (–10 dB): 40 Hz – 20 kHz
Frequency Response (–3 dB): 50 Hz – 18.5 kHz
Horizontal Coverage Angle: 90º
Vertical Coverage Angle: 60º
Maximum SPL Long-Term: 113 dB SPL @ 1m
Maximum SPL Peak: 116 dB SPL @ 1m
Input/Output
Input Type: Female XLR Balanced/Unbalanced
Input Impedance: 20 kΩbalanced bridging;
10 kΩunbalanced
Loop-through: Male XLR Balanced/Unbalanced
(parallel with input)
Level Control: Rotating knob
0 dB at center
Sensitivity: +4 dBu for full output
(Level Control @ Center)
–36 dBu for full output
(Level Control @ Max)
Transducers
Low Frequency:
15 in/381 mm with steel frame,
paper cone woofer
High Frequency:
Horn-loaded 1 in/25 mm exit
compression driver
Power Amplifiers
Low Frequency Power Amplifier
Rated Power: 150 watts, 8 ohm load
182 watts peak
THD: <0.1%
Signal-to-Noise Ratio:
> –94 dB, 20 Hz to 20 kHz, unweighted,
referenced to 138 watts into 8 ohms
Design: BTL Class D
High Frequency Power Amplifier
Rated Power: 50 watts, 4 ohm load
60 watts peak
THD: <0.1 %
Signal-to-Noise Ratio:
> –97 dB, 20 Hz to 20 kHz, unweighted,
referenced to 50 watts into 4 ohms
Design: Class AB
Electronic Crossover
Crossover Type: 24 dB/octave
Crossover Frequency: 3 kHz

13
U
120VAC 60HZ320W
POWER OL
LEVEL
MID
FREQ
8k
100
+15-15
U
+15-15
U
HIGH
12kHz
LOW
80Hz
+15-15
U
MID
DIRECT
EQ
OUT
EQ
IN
TH-15A
ACTIVE SOUND
REINFORCEMENT LOUDSPEAKER
MAX
DESIGNEDINWOODINVILLE,WA,USA • MANUFACTUREDIN CHINA •
FABRIQUEENCHINE• PATENTSPENDING • COPY ©2005
MANUFACTURINGDATE
SERIALNUMBER
WARNING: TOREDUCETHE RISK OFFIRE OR ELECTRIC
SHOCK,DONOT EXPOSETHIS EQUIPMENT TO RAIN OR
MOISTURE.DO NOTREMOVE COVER. NO USERSERVICEABLE
PARTSINSIDE.REFERSERVICING TOQUALIFIED PERSONNEL.
AVIS: RISQUEDECHOC ELECTRIQUE — NE PASOUVRIR
27.1 in/
68.9 cm
16.8 in/
42.7 cm
11.7 in/
29.6 cm
6.1 in/
15.5 cm
16.8 in/
42.7 cm
TH-15A Dimensions

14
U
120 VAC 60HZ 320W
POWER OL
LEVEL
MID
FREQ
8k
100
+15-15
U
+15-15
U
HIGH
12kHz
LOW
80Hz
+15-15
U
MID
DIRECT
EQ
OUT
EQ
IN
TH-15A
ACTIVE SOUND
REINFORCEMENT LOUDSPEAKER
MAX
DESIGNED IN WOODINVILLE,WA,USA • MANUFACTURED INCHINA •
FABRIQUE ENCHINE • PATENTSPENDING • COPY ©2005
MANUFACTURING DATE
SERIAL NUMBER
WARNING:
TO REDUCE THERISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS EQUIPMENTTO RAIN OR
MOISTURE. DO NOT REMOVECOVER. NO USER SERVICEABLE
PARTSINSIDE. REFER SERVICINGTO QUALIFIED PERSONNEL.
AVIS:
RISQUE DE CHOC ELECTRIQUE —NE PAS OUVRIR

15
TAPCO LIMITED WARRANTY
A. LOUD Technologies Inc. warrants all materials,
workmanship and proper operation of this TAPCO
product for a period of one year from the original
date of purchase. If any defects are found in the
materials or workmanship, or if the product fails to
function properly during the applicable warranty
period, LOUD Technologies, at its option, will repair
or replace the product. This warranty applies only
to equipment sold and delivered within the U.S.
by LOUD Technologies or its authorized dealers.
B. Service and repairs of TAPCO products are to
be performed only at a factory-authorized
service center. Unauthorized service, repairs, or
modification will void this warranty.
C. To obtain factory service, please follow the
instructions found on pages 9 and 10.
D. LOUD Technologies Inc. reserves the right to
inspect any products that may be the subject of
any warranty claims before repair or replacement
is carried out. LOUD Technologies may, at their
option, require proof of the original date of
purchase in the form of a dated copy of the
original dealer’s invoice or sales receipt. Final
determination of warranty coverage lies solely
with LOUD Technologies Inc.
E. TAPCO products returned to one of LOUD
Technologies factory-authorized service centers
and deemed eligible for repair or replacement
under the terms of this warranty will be repaired
or replaced within thirty days of receipt. LOUD
Technologies may use refurbished parts for repair
or replacement of any product. Products returned
that do not meet the terms of this Warranty will not
be repaired unless payment is received for labor,
materials, return freight, and insurance. Products
repaired under warranty will be returned freight
prepaid by LOUD Technologies to any location
within the boundaries of the USA.
F. LOUD Technologies warrants all repairs performed
for 90 days or for the remainder of the original
warranty period. LOUD Technologies assumes no
responsibility for the quality or timeliness of repairs
performed by Authorized TAPCO Service Centers.
G. This warranty does not extend to damage resulting
from improper installation, misuse, neglect or
abuse, or to exterior appearance. This warranty is
recognized only if the inspection seals and serial
number on the unit have not been defaced or
removed.
H. This warranty is extended to the original purchaser
and to anyone who may subsequently purchase
this product within the applicable warranty period.
A copy of the sales receipt is required to obtain
warranty repairs.
I. This is your sole warranty. LOUD Technologies Inc.
does not authorize any third party, including any
dealer or sales representative, to assume any
liability on behalf of LOUD Technologies or to make
any warranty for LOUD Technologies.
J. THE WARRANTY GIVEN ON THIS PAGE IS THE SOLE
WARRANTY GIVEN BY LOUD TECHNOLOGIES INC.
AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS
AND IMPLIED, INCLUDING THE WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE WARRANTY GIVEN ON THIS PAGE
SHALL BE STRICTLY LIMITED IN DURATION TO ONE
YEAR FROM THE DATE OF ORIGINAL PURCHASE
FROM AN AUTHORIZED TAPCO DEALER. UPON
EXPIRATION OF THE APPLICABLE WARRANTY
PERIOD, LOUD TECHNOLOGIES INC. SHALL HAVE
NO FURTHER WARRANTY OBLIGATION OF ANY
KIND. LOUD TECHNOLOGIES INC. SHALL NOT
BE LIABLE FOR ANY INCIDENTAL, SPECIAL, OR
CONSEQUENTIAL DAMAGES THAT MAY RESULT
FROM ANY DEFECT IN THE TAPCO PRODUCT OR
ANY WARRANTY CLAIM. Some states do not
allow exclusion or limitation of incidental, special,
or consequential damages or a limitation on
how long warranties last, so some of the above
limitations and exclusions may not apply to you.
This warranty provides specific legal rights and you
may have other rights which vary from state to state.
Please keep your sales receipt in a safe place.
“TAPCO” is a registered trademark of LOUD
Technologies Inc. All other brand names mentioned
are trademarks or registered trademarks of their
respective holders, and are hereby acknowledged.
©2006 LOUD Technologies Inc. All Rights Reserved.

5)" owner’s manual