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--> Heading: Bogner FAQ
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GENERAL Questions Always consult the owners manual for proper operation:
How long has BOGNER Amplification been around? Reinhold Bogner had been designing and building amplifiers long before leaving Germany in 1989. Moving to Los Angeles he quickly gained the trust of many influential players including: Steve Stevens, Dan Huff, Allan Holdsworth, Mike Landau and Steve Vai who sought out his skill at modifing and custom building their amps. Eddie Van Halen entrusted Reinhold to overhaul and revitalize Eddies #1 Marshall Plexi, Eddie was pleased. BOGNER AMPLIFICATION was born.
What kind of tubes? Is a re-bias neccesary? Matched sets of Svetlana power-tubes must be used in ECSTASYS and SHIVAS, UBERSCHALL amps must use matched Tesla power-tubes. As always biasing these tubes is a good idea for optimum tone. Svetlanas hold up well to our high voltages and sound great. The METROPOLIS amps are Cathode bias so no bias is needed.
Can I purchase a headshell? Yes, we provide headshells for customers who would like to replace their shells or would like to make heads out of their combo amplifiers.
Are padded covers available? Yes for some products, however stock is limitied.
Can I get casters for my amp? Yes, removable casters that slide in/out of the their base plate.
Can I use a power attenuator? Yes.
What does the warranty cover? Bogner Amplifiers are lifetime warranted against defective parts/materials and faulty workmanship. Tubes, transfomers and speakers are covered for a period of 90 days. This non-transferable warranty applies only to the original purchaser/owner and only if the amplifier has not been damaged by accident or misuse or as a result of repair or modification by any other than an authorized customer service facility. This warranty also depends on the use of Bogner tubes and replacement parts, we can't guarantee the performance of an amplifier which contains any other brands of tubes or parts. Bogner reserves the right to make design changes at any time without incurring any obligation to incorporate these changes in products previously purchased. It is absolutely necessary to call us first before you send us your amplifier. In most cases we will be able to supply you or your technician with the information and parts necessary to repair the amplifier, thus avoiding the transportation trou
ble and costs. The cost of shipping/insuring the product to us is the customers responsibilty. Bogner will cover the return shipping costs for a period of ninety days from date of purchase. Pack your amplifier carefully, if possible in the original box (we return your amplifier in the same box we receive it) include authorization number and a copy of your original receipt from your Bogner dealer. Put a detailed letter stating your problems and include return shipping address. To validate this warranty you must fill out the warranty registration form included with your amplifier purchase.
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ECSTASY Questions, Always consult the owners manual for proper operation:
Can I put a metal grill on my existing non-metal grill head? No, each grill attaches differently.
Sound difference between EL34 and 6L6 tubes in the ECSTASY? The EL34 "101B" has a tighter sound on the low end and more midrange. Perfect for that classic British rock tone with it's aggressive bite. 6L6 versions have a rounder low end and more high end extension. The 6L6 is great for bluesy, rootsy players. Both feature plenty of gain and effortless sustain.
Can I get the variac option? No, this option is no longer offered.
Is a power attenuator OK? Yes.
What is the series-parallel loop? First, the effects loop is tube driven. When you run the loop in series, your signal goes directly from the preamp thru your effects unit and then into the poweramp. This is the easiest way to run effects units. The potential drawback is: the effect unit may color/degrade your tone and your tone will not be true. Running the loop in parallel allows a dry/uneffected signal to be mixed with an effected signal thru use of the mix control on the back panel. This allows you to blend the effects into your sound. Keep in mind if you use the parallel mode, you will need to run the "effect level" of your effect alot higher. Also, on all of our loops, your channel volume is the effect loop send level. If your signal is too hot, turn down the your channel volume and increase the master volume level, this is your poweramp return level. Also, most pedal effects work in the loop of the ECSTASY if your channel volume is about 10 o'clock or lower.
If I use the 1/2 power function do I have to change my speaker impedance settings? Yes, your output transformer is seeing a different impedance. Position the ohm selector at 1/2 the ohms of your speaker cabinet. Example, if your cabinet is 16-ohms you must position the ohm selector to read 8-ohms during 1/2 power operation. Keep in mind, the minimum ohm load on the ECSTASY is 4-ohms so at 1/2 power the lowest rated cabinet you can use is 8-ohms.
How does Class-A option affect the amp? This option makes the amps attack feel a bit squishy, more sag (compression) Great for adding a vintage feel.
Will the XTC be too loud in a club? No, the taper on our volume control is very smooth and allows exact placement to blend in the mix perfectly. Also, the 1/2 power function is great for getting huge tone in small to large rooms. Unlike many high-power amplifiers the ECSTASY sounds rich and full at all volume levels.
What is the MEDUSA Cable? It's our standard footswitch cable that terminates with seven quarter-inch plugs that allow you to plug into a midi switching system. This allows you complete control on all your footswitch functions. The ECSTASY and the Medusa are not midi, the Medusa Cable allows you to interface with this type of set-up. A midi switching set-up allows you to control many functions all at the same instant... for example: change channels, change effects all with one button. See your dealer for more info on these midi systems.
Can I get my amp modded for more gain? Adding more gain will sacrifice definition and add slightly more compression to the feel. We feel the best balance of tone/feel has been engineered into the stock design. We do offer a gain mod to the red channel that we charge $150 for. If extreme gain is what your after, check out our UBERSCHALL amplifier.
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SHIVA Questions Always consult the owners manual for proper operation:
Tonal differences in SHIVA 6L6 vs. SHIVA EL34 models? The EL34 has a tighter sound on the low end and more midrange. Perfect for that classic British rock tone with it's aggressive bite. 6L6 versions have a rounder low end and more high end extension. The 6L6 is great for bluesy, rootsy players.
Sonic differences in SHIVA Combo's 1x12" , 2x12", 2x10" speaker enclosures? All of our SHIVA amps come with the same chassis- either EL34 or 6L6 tubes. 1x12" Combo has a big tight sound with alot of low end punch from a Celestion Classic 80 speaker. 2x12" Combo has more of an open sound with sweet mids from the open back design. 2x10" Combo has a quick and responsive bass response.
Can I add reverb to my non-reverb Shiva? No.
Why does the level go down slightly when I engage the reverb? Turning the reverb on/off actually adds the reverb circuit in/out. When off the signal is pure, no loading down from the reverb circuit just as if the amp had no reverb. Most reverb amps always have the reverb circuit on even though the reverb effect is turned off, this is loading down the pure tone of the amp. We keep it pure.
Using the Shiva without the footswitch: Some people may not need to use their footswitch because they only need one channel to play thru. The Shiva defaults to the Clean channel with the Reverb on when no footswitch is plugged in, however to activate the High gain channel without using the footswitch you have two options: First option, plug in a "shorted" mono 1/4" instrument plug, this will give you the High gain channel with the Boost function engaged as well. Second option: plug in a "shorted" stereo 1/4" instrument plug, this will give you the High gain channel without the Boost function. Shorted means the tip and sleeve/ground are connected, using a "right-angle" plug is a good idea also since it has a low profile and will not protude out from the amp chassis very much. Also you can easily short the 1/4" plug internally, just solder a jumper between the two contacts.
What kind of tubes? Is a re-bias neccesary? Matched sets of Svetlana power-tubes must be used in ECSTASYS and SHIVAS, UBERSCHALL amps must use matched Tesla power-tubes. As always biasing these tubes is a good idea for optimum tone. Svetlanas hold up well to our high voltages and sound great. The METROPOLIS amps are Cathode bias so no bias is needed.
Can I make my head a combo or vice-versa? Yes, the same chassis fits in the combo or head versions. We offer shells.
How many ohms is my internal 1x12" speaker? Internal speakers are 8 ohms for the 1x12" combos.
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METROPOLIS Questions Always consult the owners manual for proper operation:
Why does the master volume on my METROPOLIS react differently? The amp was designed so when the master volume is turned up all the way it doesn't degrade the tone. The compromise is that to achieve very low volumes is a bit difficult.
Why does my METROPOLIS not have a stand-by switch? The design goal of this amplifier was to make a single channel pure tone machine. Having a GZ34/5AR4 rectifier tube allows the plate voltage to rise slowly, there by not stressing the EL84 power tubes.
Can I add reverb to my non-reverb Metropolis? No.
What kind of tubes? Is a re-bias neccesary? The METROPOLIS amps are Cathode bias so no bias is needed. Matched sets of Svetlana power-tubes must be used in ECSTASYS and SHIVAS, UBERSCHALL amps must use matched Tesla power-tubes. As always biasing these tubes is a good idea for optimum tone. Svetlanas hold up well to our high voltages and sound great.
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UBERSCHALL Questions Always consult the owners manual for proper operation:
Why does my clean channel level need to be turned up so high? The clean channel is competing against a very open, high gain 2nd channel. You must turn up the clean channel levels to keep in balance, this is normal.
How do I clean up the high-gain channel? The UBERSCHALL is a brutal amp! Imagine a Ferrari stuck in 6th gear, going 212 mph, and slamming into a nuclear reactor! This is how the UBERSCHALL sounds even before you turn it on... Experiment with the interaction of the three volumes: global, channel vol.and channel gain. For less gain try keeping the channel gain way down and cranking the channel volume up to get the level of volume you need, then use the global volume to get the final amp level. If you need less gain consider one of our other amplifier models.
No Sound? Make sure your FX loop button on the amp chassis (out position on FX button on chassis) or footswitch is disengaged if NO effects are being used.
Can I use pedals in the loop? The loop in the UBERSCHALL is a series loop made with rack effects in mind but you can use pedals in the loop if you set your channel volume on the high gain (channel 2) at 8 o'clock or so.Turn up the global master volume if you need more volume. Keep in mind your channel volumes are your effect loop send levels, so the louder your channel level is the hotter the send level.
What kind of tubes? Is a re-bias neccesary? Matched sets of Svetlana power-tubes must be used in ECSTASYS and SHIVAS, UBERSCHALL amps must use matched Tesla power-tubes. As always biasing these tubes is a good idea for optimum tone. Svetlanas hold up well to our high voltages and sound great. The METROPOLIS amps are Cathode bias so no bias is needed.
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