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Komet Aero 33, Owner'S Manual, Page: 13 / 22

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SERVICING

 

 
 

 

We  are  very  confident  that  your  Komet

  amplifier  is  one  of  the  most  reliable  amplifiers  ever 

built. A combined experience of many decades of amp design and service has been applied to the 
construction all Komet

 amplifier models. We have been inside thousands of amps and we have 

seen every kind of problem that can occur. Great care has been taken to anticipate and prevent 
such problems  in  your  Komet

  amplifier. Every part and component in  this  amplifier has  been 

carefully chosen for its specific performance. Some parts are proprietary or hard to find. We do 
not  recommend  replacing  any  of  the  internal  components  with  generic  parts  from  different 
manufacturers.   

We also recommend that you bring your Komet

 amplifier to only a qualified service technician, 

especially if you should feel un-comfortable changing / installing audio tubes.  Should your 
Komet

 

amplifier ever need servicing or repair, please make arrangements with us to have your 

amp shipped back to Komet

 

Amplification for factory service.

 

 

 
 

CLEANING

 

 
 
We recommend cleaning your head box / tolex with a slightly damp, warm cloth towel. 

Please 

be very careful 

when cleaning the front panel of your Aero

 

33

 head box. The points of the plexi 

glass triangle Komet

 logo could possibly catch on a cleaning cloth. We recommend that you 

clean the triangle Komet

 logo starting from the center of the logo - to the outer edges of the 

amp. Repeat procedure always from the center. Avoid using T-shirts or cloths that contain 
graphics or embroidery. They may scratch some surfaces of your amp. We prefer using a micro-
fiber cleaning cloth for the logo, control panels and metal surfaces. 
 

 

 
SPECIFICATIONS

 

 

 
• Dimensions

:  22.5" x  9" x  9" 

 
• Weight

: 

 

32 lbs.

  

 
• Power

: 

 

33 Watts RMS

  

(33 clean watts measured before distortion)

 

 
• Tubes

:

  

3 - 12AX7,   4 - EL84 

/ 

6BQ5   

 
• 

Mains Fuse

:

   

3 Amp  “slow blow“  a.k.a. MDL  3A  - rated at 250V

 

 

(2 Amp for 240V operation)

   

 
•

 

H

.

T

.

 Fuse

:

  

1/2

  Amp “fast acting“  a.k.a. AGC  500 mA  - rated at 250V  

 
 

 
 
 
Copyright 1999-2017, Komet

Amplification. Group, L.L.C.  May not be reproduced in any form without express written consent from Komet

Amplification. 

 

Summary of Contents for Aero 33

Page 1: ... Komet Aero 33 Owner s Manual Copyright 1999 2017 Komet Amplification Group L L C May not be reproduced in any form without express written consent from Komet Amplification ...

Page 2: ...d in nanoseconds they can cause considerable or permanent damage to electronic equipment Electrical surges can damage electrical equipment by burning or fusing internal wires or by the gradual degradation of a device s internal components The best way to prevent damage is to unplug your amplifier when not in use NOTE Devices such as refrigerators and air conditioners require large amounts of energ...

Page 3: ...ts have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 12 CAUTION To disconnect the unit completely from the Mains unplug the unit Turning the power switch off does not completely disconnect the unit from the Mains 13 Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades w...

Page 4: ...uct must not be disposed of with other waste Instead it is your responsibility to dispose of your waste equipment by handing it over to a designated collection point for the recycling of waste electrical and electronic equipment The separate collection and recycling of your waste equipment at the time of disposal will help conserve natural resources and ensure that it is recycled in a manner that ...

Page 5: ... option with most amplifiers is to roll down the treble control The treble control is passive reduces a portion of the signal so the result is a loss of gain and muddy distortion The Hi Cut feature allows you to set the preamp EQ for the right balance by darkening or brightening the overall tone without changing the basic EQ setting 5 Presence Control affects the highest frequencies in the output ...

Page 6: ...art displays the placement of the power and pre amp tubes V1 to V7 7 Fast Gradual switch enables the musician to alter the response characteristics of the amplifier to suit their playing style A simple flip of the switch lets you choose between two different responses to your picking dynamics and guitar s volume control settings This is not an extra gain stage or gain boost circuit Instead it func...

Page 7: ...is another excellent 12AX7 option With this factory stock tube compliment the Aero 33 sounds powerful complex and detailed The distortion is balanced and harmonically rich Please note you may find that some pre amp tubes whether newly manufactured used or even n o s may be too microphonic for the first gain stage V1 of a Komet amplifier A microphonic preamp tube is a condition in which a tube will...

Page 8: ...chords a loss of tightness or punch a weak sounding treble and bass and loss of certain sonic frequencies or note bloom We suggest that you first start by replacing your power tubes Pre amp tubes can last a very long time and do not necessarily need to be replaced as often as the power tubes However we do recommend that you have both the pre amp and power tubes properly tested by a technician betw...

Page 9: ...r tubes that are under biased or drawing too much current will usually create the following symptom a low background hum sound coming from the amp which may get louder as time passes You should inspect the plates of the power tubes the flat grey colored metallic square section inside the center of the power tube s Make sure your amplifier is on Do not confuse the yellow orange filament glow on the...

Page 10: ...er cables 16 to 18 gauge is sufficient made with quality male input plugs The speaker cable plugs should be soldered directly on to the internal speaker cable wires Using a quality made speaker cable will ensure a tight fit from the amplifier s speaker jacks to the speaker cabinet Your speaker cabinet should be equipped with a quality brand input jack We prefer and use the Switchcraft 11 mono inpu...

Page 11: ...del ALWAYS make certain that your AC power cable is unplugged when replacing any fuse Mains Fuse blowing Unplug amplifier from the wall AC Remove the power tubes see precautions section Install a new 3 Amp slow blow fuse 2 Amp slow blow 240V Plug into the wall AC and turn the amp on with no power tubes in the sockets Should the mains fuse continue to blow with no power tubes installed then your am...

Page 12: ...f two things Under normal operating conditions this symptomatic sound can be the result of weak power tubes i e power tubes that have reached their operational lifespan You may also notice this symptom when the volume control and saturation control are completely dimed out 100 even with new power tubes This is a result of both the power tubes and output transformer reaching complete saturation and...

Page 13: ... with us to have your amp shipped back to Komet Amplification for factory service CLEANING We recommend cleaning your head box tolex with a slightly damp warm cloth towel Please be very careful when cleaning the front panel of your Aero 33 head box The points of the plexi glass triangle Komet logo could possibly catch on a cleaning cloth We recommend that you clean the triangle Komet logo starting...

Page 14: ...prove tremendously after being played over time The harmonic complexity will continue to improve the tone will sweeten up and become even more fluid and resonant Have fun Thank you for purchasing our product Michael Kennedy Holger Notzel Co owners Komet Amplification CONTACT Komet Amplification 1865 Dallas Drive Baton Rouge LA 70806 1454 225 926 1976 Email info kometamps com Website www kometamps ...

Page 15: ...4 X 12 16 Ohm Speakers in series parallel for 16 Ohms Note Komet Amplification recommends using a 16 Ohm load with their amplifiers for the best sonic results Copyright 1999 2017 Komet Amplification Group L L C May not be reproduced in any form without express written consent from Komet Amplification ...

Page 16: ...Komet Airbrake Manual Copyright 1999 2017 Komet Amplification Group L L C May not be reproduced in any form without express written consent from Komet Amplification ...

Page 17: ...e overall sound of an amplifier The Komet Airbrake sounds very natural and transparent at reasonable levels of attenuation It allows the user to bring the level of a 50 60 Watt Komet amplifier down to that of a cranked 20 to 25 watt amplifier all the while retaining its distinct voice and dynamics It is therefore best suited to match Komet amplifiers to a smaller room or in a quieter playing setti...

Page 18: ...6 Keep in mind that the combined load of both cabinets or both speaker loads will be 8 Set your amplifier s impedance selector accordingly to 8 Do not use two 8 speaker cabinets The combined load will be 4 which is below the Komet Airbrake 8 16 Ohm operating range For the same reason do not use two 4 cabinets Never combine two cabinets of different impedance ratings for example an 8 cab and a 16 c...

Page 19: ...apability for the Komet Airbrake is 200 Watts under full attenuation You should not have a problem using the Komet Airbrake with a 100W amplifier but it is always best to operate your 100W amplifier and attenuator within reason Note we do not recommend adjusting the Ohm settings via the adjustable lugs located on one of the resistors within the unit They are factory set Final note The Komet Airbra...

Page 20: ...The Komet Airbrake Layout Copyright 1999 2017 Komet Amplification Group L L C May not be reproduced in any form without express written consent from Komet Amplification ...

Page 21: ...setting forth the name address and daytime telephone number of the owner together with a brief description of any claimed defects Parts or product for which replacement is made shall become the property of Komet Amplification The customer may be responsible for all costs of transportation and insurance both to and from Komet Amplification depending on result of inspection and validation of warrant...

Page 22: ... amplifier We are a commercial address Please check any corresponding box on shipping label Please do not return ship your amplifier for Home Delivery service or Saturday delivery Please do not send for early morning before 9 00 A M delivery We prefer afternoon delivery Note Komet Amplification will not be held responsible for any Komet amplifier amplifier component or contents damaged or lost dur...

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