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About leperclown

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  1. leperclown


    Psarkassian, many thanks for your insights - much appreciated! Cheers Paul
  2. leperclown


    Hey Psarkassian, many thanks for the response. I absolutely get the points you make (and have previously made) about the link between the tube characteristics, biasing and the modelling. My point (poorly expressed) was that for this relationship to be optimised (or indeed not cause damage to the amp) then the characteristics/specs of the nominated tubes would have to hold absolutely constant across manufacturing batches over many years. It's the tube manufacturing quality and standards (Chinese 12AX7's & EHX 6L6's) that I am skeptical of. I believe that the most optimal combination is a modelling preamp mated to a tube power amp + guitar cabs. I have previously had a SpiderValve 100 (MKii) and that got awfully close. I am hoping that the DT amp closes that gap even further. Cheers & thanks! Paul
  3. leperclown


    Hi there, long time tube amp user, modeller user (currently Kemper , Atomic Amplifire, Boss GT 1000). Recently purchased a DT50 112 (currently in the shop getting repaired - refer "Whisper Quiet" thread). For over twenty years, I have changed my own tubes and re-biased amps. I am a bit of a tube 'cork sniffer' and have my own tube testing gear and a fair supply of tubes of multiple brands. I am not a tech and would always bow to Psarkassian's greater knowledge on this topic. However ..... My experience over time is that all tube brands (except maybe Mesa & Groove tubes) can vary significantly within classes, particularly the cheapies. I find it hard to believe that a fairly generic 'Chinese preamp' tube or Chinese manufactured EHX 6L6 could be the difference between an amp failing or working properly. (If this is the case, isn't this an amp design issue?). Have these Chinese preamp tubes and EHX 6L6's been unwavering in their specifications and performance over the past 10 years - Based on my personal experience, this is not the case. I could understand it if tube specifications or tolerances were published or if Line 6 tested, branded and sold 'recommended' tubes, but blind faith in fairly low budget tubes seems a long stretch. Call me cynical, but it sounds like marketing hokum. Cheers! Paul
  4. I received the following response from Line 6 (re Service Bulletin 059): "Your amp was built Post-Affected units, so no Service Bulletin-mandated mods are required" This is very good news. I will post how the volume IC repair work progresses. Well done, Line 6! Very rapid response. Cheers Paul
  5. Psarkissian, much appreciate your input. I will take the amp to the authorised L^ repair tech today. I'll post how things turned out. Cheers Paul
  6. Also tried bridging the loop with a patch cable and plugging my Boss GT-1000 into the loop return. Still no difference. Makes me think it must be the output section, not the preamp or speaker. Cheers Paul
  7. Hi all, Today I purchased a used DT50 112 for an excellent price ($200 Australian). The vendor said that the amp was very quiet (as in "whisper quiet"), but didn't know why. I thought I would take a chance on the amp because of the low price. When I got the amp home: Wiped down the Tolex (came up very well) Fitted 2 new El 34's and 2 new 12AX7's Did a factory reset power up Unfortunately, the amp was still very, very quiet (I did toggle the master volume, but it made no difference) I toggled the topology, pentode & class switches, but again, it made no difference Tried a separate speaker box (maybe the onboard speaker was blown), but again, it made no difference I will have to take it to a Line 6 repair shop to get it looked at, but any thoughts or suggestions would be most welcome. Many thanks Paul
  8. Hey Mkaprelian, much appreciate the response and assistance! Cheers Paul
  9. I played an outdoor gig a couple of days ago in bright sunshine (warm to hot weather). I used my Spider V240 + FBV3 for ease of set up. Unfortunately the display and pedal lights on the FBV3 were totally useless and could not be seen. The pedal lights were slightly discernible, but the display could not be read at all. The display on the amp was clear and the pedal board functionality was fine, apart from visibility. 1. I tried a different Cat 5 cable, but the problem persisted 2. I covered the display with a thick towel to see if it was just the direct sunshine on the board making for poor visibility. Under heavy shade, the display was very dim and just readable from close up As a short-term fix, I narrowed my patches down into 2 banks (1 & 2) and wrote scribble strips for each footswitch for the two banks. Worked ok, but very annoying. When I got home and turned on the unit, visibility was fine again. Also, during a song, I must have accidentally tripped the looper and recorded the main riff and I couldn't turn it off. I had to power down the amp mid song to reset - stern glares from band members ... I would love to be able to disable the looper button for gigs, but I am unsure how to. Re the issue of FBV3 visibility, I recall reading about the same issue with the FV MKII and its poor functionality in warm/direct sunshine. I suspect that, as the unit heats up in the sun, the display malfunctions. I think the footswitch lights (LEDs?) function ok, but there is just poor visibility in direct sunshine. Has anyone else had this experience? Cheers Paul
  10. I got the FBV3 early in January. I am still curious as to whether the FBV3 can be used with other midi devices, without a PC involved. i.e. could I use it (with some type of interface) to control an Atomic Amplifire? Does such a device exist? (Atomic Amplifire Midi din in/out > Interface: Midi din in/out + Power in + RJ45 Out > FBV3) Cheers! Paul
  11. Hi AD Brown, thank you for responding. I was talking about calibrating the built-in expression pedal on the FBV3 (which I am using with a Spider V240). Someone from Line 6 responded to this question on another forum (TGP). The answer is that the pedal is 'self-calibrating' - which is very slick. However, I am now wondering if an external expression pedal (plugged into the FBV3) would require calibration and if so, how? Cheers & thanks! Paul
  12. Hi, I have searched this forum, the internet and the pilot guide, but nowhere is there a reference on how to calibrate the pedal on the FBV 3. Any help would be much appreciated. Cheers Paul
  13. Hi all, I have an FBV3 on order. Am I able to use the FBV3 to control external midi devices (e.g. Atomic Amplifire) by using the USB port on the FBV3? i.e. If I am connected to my Spider V240 (by RJ45 connection) can I also control the Atomic Amplifire (or other device) via the USB (type B) port? Any assistance is much appreciated. Cheers Paul
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