Page 1
GTX3500H
Three-Channel Guitar Amplifier
with Advanced Digital Signal
Processing
User ’s Guide
Page 2
TABLE OF CONTENTS:
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
The Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4,5
The Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
The DSP Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Storing Your Own Presets . . . . . . . . . . . . . . . . . . . . . . .8
Restoring the Factory Presets . . . . . . . . . . . . . . . . . . . .8
More About the Tap/Save Button . . . . . . . . . . . . . . . . . .8
Using the Footswitch . . . . . . . . . . . . . . . . . . . . . . . . . . .9
DSP Factory Presets . . . . . . . . . . . . . . . . . . . . . . . .10,11
Suggested Settings . . . . . . . . . . . . . . . . . . . . . . . . .12,13
DSP “Fill in the Blanks” (for User Presets) . . . . . . . . . .14
System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . .15
Technical Specifications . . . . . . . . . . . . . . . . .back cover
IMPORTANT SAFETY INSTRUCTIONS
• READ, FOLLOW, HEED, AND KEEP ALL INSTRUCTIONS AND WARNINGS.
• DO NOT OPERATE NEAR ANY HEAT SOURCE AND DO NOTBLOCK ANY VENTILATION OPENINGS ON THIS APPARATUS. FOR
PROPER OPERATION, THIS UNITREQUIRES 3” (75mm) OF WELL VENTILATED SPACE AROUND HEATSINKS AND OTHER AIR
FLOW PROVISIONS IN THE CABINET.
• DO NOT USE THIS APPARATUS NEAR SPLASHING, FALLING, SPRAYING, OR STANDING LIQUIDS.
• CLEAN ONLY WITH LINT-FREE DAMP CLOTH AND DO NOT USE CLEANING AGENTS.
• ONLY CONNECT POWER CORD TO A POLARIZED, SAFETY GROUNDED OUTLET WIRED TO CURRENT ELECTRICAL CODES AND
COMPATIBLE WITH VOLTAGE, POWER, AND FREQUENCY REQUIREMENTS STATED ON THE REAR PANEL OF THE APPARATUS.
• PROTECT THE POWER CORD FROM DAMAGE DUE TO BEING WALKED ON, PINCHED, OR STRAINED.
• UNPLUG THE APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERIODS OF TIME.
• ONLY USE ATTACHMENTS, ACCESSORIES, STANDS, OR BRACKETS SPECIFIED BYTHE MANUFACTURER FOR
SAFE OPERATION AND TO AVOID INJURY.
• WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK OR FIRE, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE..
• SERVICE MUST BE PERFORMED BY QUALIFIED PERSONNEL.
• OUR AMPLIFIERS ARE CAPABLE OF PRODUCING HIGH SOUND PRESSURE LEVELS. CONTINUED EXPOSURE TO HIGH SOUND
PRESSURE LEVELS CAN CAUSE PERMANENT HEARING IMPAIRMENT OR LOSS. USER CAUTION IS ADVISED AND EAR PROTECTION IS RECOMMENDED IF UNIT IS OPERATED AT HIGH VOLUME.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE. TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
"IT IS NECESSARY FOR THE USER TO REFER TO THE INSTRUCTION MANUAL"
“ES NECESARIO QUE EL USUARIO SE REFIERA AL MANUAL DE INSTRUCCIONES.”
"REFERREZ-VOUS AU MANUAL D'UTILISATION"
EXPLANATION OF GRAPHICAL SYMBOLS:
EXPLICACION DE SIMBOLOS GRAFICOS:
EXPLICATION DES SYMBÔLES GRAPHIQUES:
"DANGEROUS VOLTAGE"
“VOLTAJE PELIGROSO”
"DANGER HAUTE TENSION"
=
=
PRECAUCION
RIESGO DE CORRIENTAZO
NO ABRA
PRECAUCION: PARA REDUCIR EL RIESGO DE INCENDIOS O DESCARGAS
ELECTRICAS, NO PERMITA QUE ESTE APARATO QUEDE EXPUESTO A LA
LLUVIA O LA HUMEDAD. PARA DISMINUOIR EL RIESGO DE CORRIENTAZO.
NO ABRA LA CUBIERTA. NO HAY PIEZAS ADENTRO QUE EL USARIO PUEDO
REPARAR DEJE TODO MANTENIMIENTO A LOS TECHNICOS CALIFICADOS.
ATTENTION
RISQUE D'ELECTROCUTION
NE PAS OUVRIR
ATTENTION: PROTÉGEZ CET APPAREIL DE LA PLUIE ET DE L'HUMIDITÉ
AFIN D'ÉVITER TOUT RISQUE D'INCENDIE OU D'ÉLECTROCUTION. POUR
REDUIRE D'ELECTROCUTION NE PAS ENLEVER LE COUVERCLE. AUCUNE
PIECE INTERNE N'EST REPRABLE PAR L'UTILISATEUR. POUR TOUTE
REPARATION, S'ADRESSER A UN TECHNICIEN QUALIFIE.
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3
Congratulations!
You are now the proud owner of the Crate GTX3500H
TidalWave three-channel guitar amplifier with Advanced
Digital Signal Processing. This rugged amplifier combines outstanding features with serious clean and distorted sounds.
Dual DSP controls provide 15 “Multi” effects and 15 Delay
effects which can be combined for a wide variety of sounds.
The Tap/Save button allows you to manually set the tempo of
many of the effects and to save new DSP presets in the
amplifier’s non-volatile memory. A separate reverb control
adds even more to the array of effects.
A highly visible electronic tuner (with a Mute switch for
silent tuning) allows you to get tuned and stay in tune any
time the amplifier is turned on. The rear panel Line In and
Line Out jacks allow you to connect additional equipment for
even greater flexibility.
Channel switching, Tap/Save, and a second bank of DSP
effects may be controlled by means of the supplied four button footswitch.
Like all Crate products, your GTX3500H TidalWave amplifier is designed by musicians, and built using only the best
components. Extensive testing confirms that this amplifier is
the absolute best it can be.
In order to get the most out of your new amplifier, we
strongly urge you to read the information contained in this
manual before you begin playing.
And thank you
for choosing Crate.
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4
The Front Panel:
1
7 8 141312
2 5 6 9 10 113 4
1. POWER: Use this switch to turn the amplifier on (top of the switch depressed) and off (bottom of
the switch depressed). The switch illuminates when the power is on.
2. REV: Use this control to adjust the amount of the digital reverb effect. In its fully counter clockwise
position the signal is “dry” (without any reverb). As you rotate the control clockwise the amount of
reverb increases. The Reverb setting may be saved as a channel preset - see page 8.
3. TAP/SAVE LED: This LED flashes in time with the tempo set by the Tap/Save button (#4) and
serves as a status indicator for certain DSP activities (see page 8).
NOTE: For some of the DSP effects, the Tap/Save LED remains illuminated. The Tap/Save LED does not
illuminate when the DSP knobs are set to the Bypass position.
4. TAP/SAVE: Use this pushbutton to set the tempo of many of the effects by tapping the button
repeatedly in time with the desired tempo. The Tap/Save button is also used to save DSP presets
and to restore the factory default DSP settings. Additional information about the Tap/Save button is
on pages 7 and 8.
5. DSP DELA Y: Use this control to select one of the fifteen digital Delay effects. Complete information about the DSP effects is on page 7.
6. DSP MULTI: Use this control to select one of the fifteen digital “Multi” effects. Complete information about the DSP effects is on page 7.
7. ELECTRONIC TUNER: The electronic tuner is active whenever the amplifier is turned on, providing constant, “real time” tuning. The bottom row of LEDs indicate which note (string) is being tuned.
The top row of LEDs provides directional queues to facilitate quick and precise tuning of your instrument. The indicated note (string) is properly tuned when only the center LED is illuminated.
8. MUTE: This switch, when depressed, mutes the output signals at the Speaker jacks (#30) and the
Line Out jack (#28), allowing you to silently tune or switch instruments. The switch illuminates when
the Mute function is active.
9. CHANNEL 3 SELECT: This switch, when depressed, selects Channel 3 as the active channel.
The switch illuminates when Channel 3 is active. Channel 3 features a high gain FlexWave circuit for
extreme distortion and sustain.
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20 271918
15 16 17
262524
21 22 23
10. LEVEL: Use this control to adjust the output level of Channel 3.
11. GAIN: Use this control to adjust the amount of distortion produced by Channel 3.
12. HIGH: Use this control to adjust the high frequency level of Channel 3.
13. MID: Use this control to adjust the midrange frequency level of Channel 3.
14. LOW: Use this control to adjust the low frequency level of Channel 3.
15. CHANNEL 2 SELECT: This switch, when depressed, selects Channel 2 as the active channel.
The switch illuminates when Channel 2 is active. Channel 2 features a medium gain FlexWave circuit for moderate distortion and “crunch.”
16. LEVEL: Use this control to adjust the output level of Channel 2.
17. GAIN: Use this control to adjust the amount of distortion produced by Channel 2.
18. HIGH: Use this control to adjust the high frequency level of Channel 2.
19. MID: Use this control to adjust the midrange frequency level of Channel 2.
20. LOW: Use this control to adjust the low frequency level of Channel 2.
21. CHANNEL 1 SELECT: This switch, when depressed, selects Channel 1 as the active channel.
The switch illuminates when Channel 1 is active. Channel 1 features a low gain FlexWave circuit for
clean sounds or sounds with mild distortion.
22. LEVEL: Use this control to adjust the output level of Channel 1.
23. GAIN: Use this control to adjust the amount of distortion produced by Channel 1.
24. HIGH: Use this control to adjust the high frequency level of Channel 1.
25. MID: Use this control to adjust the midrange frequency level of Channel 1.
26. LOW: Use this control to adjust the low frequency level of Channel 1.
27. INPUT: Use this jack to connect your guitar to the amplifier by means of a shielded instru-
ment cable.
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The Rear Panel:
28. LINE OUT: When using an external effects processor, connect this jack to the input of the
effect by means of a shielded signal cable. This jack also doubles as a source for a post-EQ,
preamp signal to send your signal to a mixing board, recorder, powered monitor or external
amplifier.
29. LINE IN: When using an external effects processor, connect this jack to the output of the
effect by means of a shielded signal cable. This jack also doubles as a direct connection to the
power amp, bypassing the input and preamp stages. This is useful for “slaving” a pair of amplifiers together.
30. SPEAKERS: Use these jacks to connect the amplifier to your speaker cabinet(s) using
speaker cables with mono 1/4” plugs. These jacks are wired in parallel. Make sure that the combined impedance of your speakers is equal to or greater than 2 ohms! Use the chart below to
help determine parallel loads. If in doubt, ask your dealer.
CAB IMP # CABS TOTAL IMP CAB IMP # CABS TOTAL IMP
4 ohms 2 2 ohms 16 ohms 2 8 ohms
8 ohms 2 4 ohms 16 ohms 4 4 ohms
8 ohms 4 2 ohms 16 ohms 8 2 ohms
31. FOOTSWITCH: Use this jack to connect the footswitch cable (5-conductor midi cable) to the
four-button footswitch (supplied). This allows you to remotely switch between the channels, set
tap tempos, save new presets, and access a second set of DSP presets. (See page 9 for additional information.)
32. FUSE: The fuse protects the amplifier from damages caused by a faulty AC power source and/or
other problems. If the fuse fails, replace it ONLY with the same size and type. If fuses continue to fail,
check the AC source – if the source is okay, contact your Crate dealer for service information.
33. AC LINE CORD (not shown): This grounded power cord is to be plugged into a grounded power
outlet, wired to current electrical codes and compatible with the voltage, power, and frequency requirements stated on the rear panel. Do not attempt to defeat the safety ground connection.
28 29 30 31 32
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The DSP
Section:
The GTX3500H features DSP controls
for Reverb, Delay and Multi. Complete
information about the Delay and Multi
effects is given below. The Delay control
selects the delay or echo effects. All of
these effects have their speed controlled by the Tap/Save button. The Multi control
selects the “pitch modified” and wah effects. Many of these effects have their speed
controlled by the Tap/Save button. Additional information is provided on pages 5 and 10.
DELAY:
NAME DESCRIPTION TAP/SAVE BUTTON CONTROLS:
Single LO Single delay w/low level time: .05–1 second
Single MID Single delay w/medium level time: .05–1 second
Single HI Single delay w/high level time: .05–1 second
Single MAX Single delay w/maximum level time: .05–1 second
Echo LO Echo w/low level time: .05–1 second
Echo MID Echo w/medium level time: .05–1 second
Echo HI Echo w/high level time: .05–1 second
Echo MAX Echo w/maximum level time: .05–1 second
Tape LO Tape echo w/low level time: .05–1 second
Tape MID Tape echo w/medium level time: .05–1 second
Tape HI Tape echo w/high level time: .05–1 second
Tape MAX Tape echo w/maximum level time: .05–1 second
Echo FX LO Echo w/low level, before multi effect time: .05–1 second
Echo FX MID Echo w/medium level, before multi effect time: .05–1 second
Echo FX HI Echo w/high level, before multi effect time: .05–1 second
Bypass dry signal - no effect n/a
MULTI:
NAME DESCRIPTION TAP/SAVE BUTTON CONTROLS:
Chorus LO Chorus w/low depth speed: 1 cycle/tap - tap period: .05–1 second
Chorus MID Chorus w/medium depth speed: 1 cycle/tap - tap period: .05–1 second
Chorus HI Chorus w/high depth speed: 1 cycle/tap - tap period: .05–1 second
Flange LO Flanger w/low depth speed: 4 cycle/tap - tap period: .05–1 second
Flange MID Flanger w/medium depth speed: 4 cycle/tap - tap period: .05–1 second
Flange HI Flanger w/high depth speed: 4 cycle/tap - tap period: .05–1 second
Phaser LO Phaser w/low feedback speed: 2 cycle/tap - tap period: .05–1 second
Phaser MID Phaser w/medium feedback speed: 2 cycle/tap - tap period: .05–1 second
Phaser HI Phaser w/high feedback speed: 2 cycle/tap - tap period: .05–1 second
Vibrato LO Vibrato w/low depth speed: 1 cycle/tap - tap period: .05–1 second
Vibrato MID Vibrato w/medium depth speed: 1 cycle/tap - tap period: .05–1 second
Vibrato HI Vibrato w/high depth speed: 1 cycle/tap - tap period: .05–1 second
Octave Down Adds signal one octave lower n/a
Touch Wah Touch-sensitive wah-wah n/a
Reverse Wah Inverted wah-wah n/a
Bypass Dry signal - no effect n/a
SIGNAL PATH FOR ECHO LO, MID & HI EFFECTS:
SIGNAL PATH FOR ALL OTHER EFFECTS:
DELAY
MULTI MULTI DELAY
Page 8
8
Storing
Your Own Presets:
Each channel of the GTX3500H has two factory assigned Effects presets, as shown
on pages 10 and 11. No matter what the settings of the Rev, Delay and Multi controls,
the DSP and reverb presets are recalled when a channel is selected. You may change
the DSP and reverb settings by rotating the Rev, Delay and Multi controls - these
changes will remain active until a different channel is selected, but will not be there for
later use unless they are saved. To save a new preset to a channel, first make the
desired changes. Then press and hold the Tap/Save button for about three seconds. The
Tap/Save LED will flash through three quick sequences, indicating the preset was saved.
The new preset is stored for that channel and will remain in memory until a new preset is
stored for that channel or the factory presets are restored.
We recommend making copies of page 14 of this manual for the purpose of writing down your own presets.
Restoring the Factory Presets:
The factory assigned presets may be restored, erasing any changes you have made.
Turn the amplifier off. Press and hold the Tap/Save button as you turn the amplifier on.
The Tap/Save LED will flash through two quick sequences, indicating the factory presets
have been restored.
More
About the Tap/Save Button:
The Tap/Save button is used to set the tempo of an effect simply by tapping on it in
time to the desired tempo – the time between the taps sets the timing of the effect. (If the
tempo entered is greater than one tap per second, the tempo will default to one second,
which is the maximum tap-tempo time period.)
The Delay effects and the Multi effects may each have a different tap speed. The
default “target” for the Tap/Save button is the Delay control. To select the Multi control as
the tap button’s target, rotate the Multi control. The Tap/Save tempo function will automatically revert back to the Delay control 16 seconds after the Multi control is rotated, or
when the tap speed was last changed for the Multi effect. (If the Delay control is set to
Bypass, the Tap/Save function will not revert to Delay.)
NOTE: In most cases, it is usually more pleasing to the ear to set a slower tap speed for the “HI” effects
and a faster tap speed for the “LO” effects, as listed on page 7.
3 SECONDS
CHANGES ARE
SAVED AS
NEW PRESET
Page 9
9
Using the Footswitch:
The special Crate four-button footswitch supplied with the GTX3500H performs a
variety of functions. The footswitch allows remote channel selection, remote Tap/Save
for each channel, and allows access to an additional DSP preset for each channel of
the amplifier. Use only the supplied Crate four-button momentary footswitch with the
GTX3500H. Astandard 5-wire midi cable (supplied) may be used to connect the
footswitch to the amplifier.
When the footswitch is connected
to the amplifier, the first tap of buttons 1 - 3 select the corresponding
channel. Once a channel is selected,
consequent taps of the same button
produce the same results as tapping
the front panel Tap/Save button – you
can use the footswitch to store presets and set the tempo of an effect.
(See page 8.)
The “original” DSP presets are
active for each channel when the #4
footswitch LED is illuminated. These
are referred to as “DSP Bank ‘A’.”
When the #4 button is switched and
the LED is off, a second DSP preset
may be stored and recalled for each
channel - “DSP Bank ‘B’.”
NOTE: DSP Bank “B” presets are only accessible
when the footswitch is
connected to the amplifier.
When the footswitch is not
connected, only DSP Bank
“A” is accessible.
SWITCH #1:
CH. 1 SELECT;
TAP/SAVE FOR CH. 1
FOOTSWITCH
GTX3500H REAR PANEL
5-Conductor
MIDI cable
SWITCH #2:
CH. 2 SELECT;
TAP/SAVE FOR CH. 2
SWITCH #4:
LED on: DSP BANK A
LED off: DSP BANK B
4
2
1
SWITCH #3:
CH. 3 SELECT;
TAP/SAVE FOR CH. 3
3
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10
DSP
Factory Presets:
The GTX212 Factory Presets for the DSP section are as follows:
Factory Preset 1: Clean w/Chorus, Delay, Reverb
CHANNEL: 1
2
3
BANK: "A"
"B"
Factory Preset 2: Rhythm w/Slapback Delay
CHANNEL: 1
2
3
BANK: "A"
"B"
Factory Preset 3: Solo w/Flange, Delay, Reverb
TAP Tempo MEDIUMTAP Tempo MEDIUM
TAP Tempo N/ATAP Tempo FAST
CHANNEL: 1
2
3
BANK: "A"
"B"
TAP Tempo MEDIUMTAP Tempo MEDIUM
Page 11
11
DSP
Factory Presets:
The GTX212 Factory Presets for the DSP section are as follows:
Factory Preset 4: Clean w/Reverb
CHANNEL: 1
2
3
BANK: "A"
"B"
Factory Preset 5: Rhythm w/Reverb
CHANNEL: 1
2
3
BANK: "A"
"B"
Factory Preset 6: Solo w/Reverb
TAP Tempo N/ATAP Tempo N/A
TAP Tempo N/ATAP Tempo N/A
CHANNEL: 1
2
3
BANK: "A"
"B"
TAP Tempo N/ATAP Tempo N/A
Page 12
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Suggested Settings:
UM
A
"Oceanic"
Clean with
Vibrato, Delay,
& Reverb
"Super Funk"
Clean with
Wah, Delay,
& Reverb
"Arena"
Rhythm with
Reverb
& Delay
TAP Tempo MEDIUMTAP Tempo MEDIUM
TAP Tempo N/ATAP Tempo FAST
"Haze Faze"
Rhythm with
Phase
& Reverb
"Solo Wah"
Solo with
Wah, Delay
& Reverb
"Octanator"
Solo with
Octave
& Reverb
TAP Tempo N/A
TAP Tempo N/A
TAP Tempo N/ATAP Tempo MEDIUM
TAP Tempo MEDI
TAP Tempo N/
TAP Tempo N/ATAP Tempo N/A
Page 13
13
Suggested Settings:
Page 14
14
DSP
“Fill in the Blanks” (User Settings):
_
_
_
Copy this page to fill in your own DSP Presets!
User Preset: _____________________________________
CHANNEL: 1
2
3
BANK: "A"
"B"
TAP Tempo __________
TAP Tempo ___________
User Preset: _____________________________________
CHANNEL: 1
2
3
BANK: "A"
"B"
TAP Tempo __________
TAP Tempo ___________
User Preset: _____________________________________
CHANNEL: 1
2
3
BANK: "A"
"B"
TAP Tempo __________
TAP Tempo ___________
Page 15
15
System Block Diagram:
TUNER
INPUT
FOOTSWITCH
1 2 3 4
MUTE
INPUT
BUFFER
A BC D EF G
SWITCH
CONTROLLER
CHANNEL 1
WAVE
GAIN)
GAIN
CHANNEL 2
WAVE
(MEDIUM
GAIN)
GAIN
CHANNEL 3
WAVE
(HIGH
GAIN)
GAIN
FLEX
(LOW
FLEX
FLEX
LEVEL
MIDHIGH LOW
LEVEL
MIDHIGH LOW
LEVEL
MIDHIGH LOW
TAP/
SAVE
DSP
A/B
DSP
REV MULTIDELAY
LINE
OUT
LINE
IN
POWER
AMP
TUBE AMP
SIMULATING
DAMPING CIRCUIT
SPEAKERS
Page 16
GTX3500H TECHNICAL SPECIFICATIONS:
Output Power Rating 350W RMS @5% THD, 2Ω, 120 VAC
Input Impedance 470kΩ
Total System Gain Ch 1 74dB, all controls @10
Ch 2 88dB, all controls @10
Ch 3 103dB, all controls @10
Maximum Input Signal Accepted 5 volts peak-to-peak
Channel 1 Low Control 26dB range @ 70Hz
Mid Control 10dB range @ 900Hz
High Control 20dB range @ 10kHz
Channel 2 Low Control 26dB range @ 70Hz
Mid Control 10dB range @ 900Hz
High Control 20dB range @ 10kHz
Channel 3 Low Control 17dB range @ 100Hz
Mid Control 16dB range @ 1kHz
High Control 12dB range @ 7kHz
Power Requirements 120 VAC, 60Hz, 95VA
100/115VAC, 50/60Hz, 95VA;
230VAC, 50/60Hz, 95VA
Size and Weight 10” H x 30” W x 10-3/8” D, 41 lbs.
The GTX3500H is covered with a durable Tolex material: wipe it clean with a lint-free cloth.
Never spray cleaning agents onto the cabinet. Avoid abrasive cleansers which would damage the finish.
Crate continually develops new products, as well as improves existing ones. For this reason, the specifications
and information in this manual are subject to change without notice.
www.crateamps.com
@2004 SLM Electronics, a division of St. Louis Music, Inc • 1400 Ferguson Avenue • St. Louis, MO 63133
47-499-01 • 030204
Declaration Of Conformity
#30 , Effective 01-01-2001
Manufacturer’s Name: SLM Electronics
Production Facility: 1901 Congressional Drive, St. Louis, MO 63146, USA
Production Facility: 700 Hwy 202 W, Yellville, AR 72687, USA
Shipping Facility: 1400 Ferguson Ave., St. Louis, MO 63133, USA
Office Facility: 1400 Ferguson Ave., St. Louis, MO 63133, USA
Product Type: Audio Amplifier
Complies with Standards:
LVD: 92/31/EEC, 93/68/EEC, & 73/23/EWG
Safety: EN60065
EMC: EN55013, EN55020, EN55022, EN61000-3-2,
& EN61000-3-3
Supplementary information provided by:
SLM Electronics - R & D Engineering
1901 Congressional Drive, St Louis, MO 63146, USA
Tel.: 314-569-0141, Fax: 314-569-0175
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