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400RB Series

Block Diagram

400RB Series Specifications:

Output Power:
240W Amplifier

150W @ 8 Ohms
240W @ 4 Ohms

Input Section:
Maximum Input Level

0.6V Rms

With -10dB pad

1.6V Rms

Input Impedance

1M Ohm

Send output impedance

220 Ohm

Return input impedance

50k Ohm

Tuner Output Impedance

10k Ohm

Direct Output Impedance

500 Ohms

Equalizer:
Bass

+10db @ 60Hz

Lo-Mid

+6db/-10dB @ 250Hz

Hi-Mid

+6db/-10dB @ 1kHz

Treble

+14db @ 7kHz

Voicing Filters:
String Bass Button

+11db@20Hz

Contour

+2db@50Hz /

-10db@500Hz /
+3db@7kHz

P r e s e n c e

+ 9 d b @ 1 0 k H z

Noise

-90db referenced to 240W,
“A” weighted

Cooling

Continuously Variable-Speed
fan

Amplifier Protection: Full short circuit, thermal,&

RF protection.
Stable into reactive and
mismatched loads.
Five second muted warm-up.

Specifications

Dimensions(HxWxD):

3 1/2” x 17” x 8 ¼”
(2 Rack Spaces)

Weight:

15lbs

Power Requirements:

U.S.A./Canada

120V/60Hz-410W

(at full power)

Europe

230V/50Hz-410W
(at full power)

Japan

100V/50Hz-410W
(at full power)

Содержание 400RB series

Страница 1: ...400RB III 400RB 115 400RB 112 Owner s Manual 400RB Series ...

Страница 2: ... LARGE DE LA FICHE DANS LA BORNE ANS LA BORNE CORRESPOND CORRESPONDANTE DE LA PRISE ET POUSSER JUSQ ANTE DE LA PRISE ET POUSSER JUSQU A U AU FOND U FOND WARNING ARNING TO REDUCE O REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK THE RISK OF FIRE OR ELECTRIC SHOCK DO NO DO NOT EXPOSE T EXPOSE THIS APPLIANCE THIS APPLIANCE TO RAIN OR MOISTURE O RAIN OR MOISTURE The lightning flash with arro The lightning f...

Страница 3: ...not a substitute for reading the rest of the manual Your amplifier should have come with the following items please check the contents of the box to ensure that you have everything Included with your 400RB Head 400RB 1 Rack mount ears with hardware 2 Power cord 1 Owner s manual 1 Warranty card 1 Safety instructions sheet 1 Included with your 400RB Combo 400RB 112 or 115 1 Power Cord 1 Owner s Manu...

Страница 4: ...es I don t model my designs after other manufacturer s products as some of our competitors are proud of reciting Instead I believe new and old problems are best solved with new solutions Having taken our own path GK products enjoy a unique unmatched sound allowing the artist using them every opportunity to make an original statement Having supported my products for over thirty years I have learned...

Страница 5: ...ock The Voicing Filters should be turned all the way down to get a flat response Set the Volume and Master Volumes at 0 If you have a five string bass push the button marked String Bass in Next Using an instrument cable connect your bass to the Input jack and turn the power switch on and play If the clip LED flashes push the button marked 10db in This will prevent you from overdriving the preamp N...

Страница 6: ...ring instru ment Sound Tips Boost Master Turning up the Boost control will add a little growl to your tone This is an unmistakable GK trade mark sound that you will grow to appreciate Raising the Boost while lowering the Master will add more growl while keeping the sound level the same Growl is actually a small amount of even order harmonic distortion that sounds great through a woofer For most pl...

Страница 7: ...r variation and electrical start up noise affecting your sound Do Not Use Extension Cords To avoid safety hazards use only the power cord supplied with your unit If a replacement cord is used make certain that it is of consistent quality and gauge as the original We do not recommend using extension cords with this product As with all electrical devices do not run power cords under rugs or carpets ...

Страница 8: ...m part of the enclosure are specially designed to remove this heat Placing other electronic equipment near these heat dissipation systems may possibly affect the long term reliability of both your amplifier and the other equipment Moving the Unit Before moving the unit be certain to disconnect any interconnection cords with other components and make sure that you disconnect the unit from the AC ou...

Страница 9: ...boosting lows highs Presence Adds edge and definition to higher frequencies ActiveEqualization 7 Treble Boost and cut at 7kHz 14dB shelving type Add or remove edge and definition 8 H i g h M i d Boost and cut at 1 kHz 6dB 10dB Q Optimized band pass type Works on lower string harmonics and effects the punch of your sound 9 LowMid Boost and cut at 250Hz 6dB 10dB Q Optimized band pass type Works on t...

Страница 10: ...r amp output for Full Range operation only They deliver 240 watts into 4 Ohms Lower impedances should not be used Each jack has a minimum of 8 Ohms each Higher impedances such as 8 Ohms 16 Ohms or No Load are acceptable No damage will result from operating the amplifier with the speakers disconnected Rear Panel Controls ...

Страница 11: ...40W into 4 Ohms Maximum power is achieved by connecting one 8 Ohm extension cabinet such as the 210RBS 410RBS or 115RBS in addition to the combo s internal 8 Ohm speaker load To drive more than one extension cabinet the combo s internal speaker can be disconnected by unplugging the speaker cable connected to the combo s back panel Below is a detailed description of the maximum loads the combos can...

Страница 12: ... Since most amplifiers have limited output current capacity they need current limiting circuits to protect against self destruction High power tran sients trigger these circuits which rob the amplifier of it s ability to control speaker cones This creates a mushy unresponsive feel to your sound The 400RB Series has an extremely high current capacity over fifty amps so it doesn t need current limit...

Страница 13: ...w have a thorough understanding of how your new 400RB Series amplifier works and what advantages it can offer you in getting your sound We thank you for reading the Owner s Manual and wish you the best of times Please send us your comments via www gallien krueger com or email us at sales gallien com Tech Talk Voicing Filters Voicing filters are used to completely revoice the amplifier In the case ...

Страница 14: ...z Hi Mid 6db 10dB 1kHz Treble 14db 7kHz Voicing Filters String Bass Button 11db 20Hz Contour 2db 50Hz 10db 500Hz 3db 7kHz P r e s e n c e 9 d b 1 0 k H z Noise 90db referenced to 240W A weighted Cooling Continuously Variable Speed fan Amplifier Protection Full short circuit thermal RF protection Stable into reactive and mismatched loads Five second muted warm up Specifications Dimensions HxWxD 3 1...

Страница 15: ...15 400RB Series Notes Notes ...

Страница 16: ...400RB Series Owner s Manual Part 160 0003 A Printed in the U S A ...

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