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About peterschut63

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    The Netherlands
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    Gear & guitars
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  1. Okay, but that looks like the other way around right, isn't the DSL40C a combo? So the helix sits in an effects loop. That should indeed work fine, and something I tried before with My Mark V Head. Now I want to use the MB Studio Pre as the first stage, so the guitar only sees the tube amp, and will be responsible for a large part of the clean and overdriven sounds. The output of the Helix will go to my monitors, and I could record it in cubase. But indeed use the Aux in (kind of like an active pick-up, but than the output of the tube amp) Thanks
  2. Hi Forum, did anybody used a tube pre in front of Helix. I have a Mesa Boogie Studio Pre and would like to use it as the first stage of a setup. Make a preset with just some delay, maybe a compressor and use an IR cabinet. should I use Aux in, or a loop input. does anybody know the maximum input levels to these inputs? thanks, Peter
  3. I bought them at thomann.de but these are all Neutrik parts and I would expect available in most countries.
  4. Hi forum. Just wanted to share a patch bay I made for the Helix Rack in my music room/office. I wanted to have two send and returns in the front, my headphone amp outputs from the TC BMC-2 Monitor control units. Also the Mic, Aux and the Variax inputs (on my wish-list) are wired out together with the Helix Control port. Then I had two holes left so added two USB3 ports from my new PC as this place is more convenient that the back of the PC. No rocket science but the result looks great to me. Total cost about 150 Euro Cheers
  5. back from the beach ...... haha Thanks Duncann and datacommando. It seems that the unit has more adjustments than the manual shows. This is not uncommon in designs with a software core. The guy for the manual has a hard time keeping up with the enhancements of the software/PM team. Cheers.
  6. Hi Duncann, But that is great news, meaning that if you select XLR, only the main output of the Helix is influenced and the S/PDIF is left alone. Right? This is not clear from the manual but I expect adjustable in the global settings menu somewhere. This would answer my question and solve what I want to achieve. Another good thing of using the S/PDIF output at a fixed 0dBFs level is that the TC BMC2 will show the digital domain volume. So it monitors headroom and any clipping that might occur in the DSP engines. Thanks. So I can go to the beach now, as I am on holiday in Curacao (but brought my guitar and Yamaha THR10)
  7. I am a bit puzzled now datacommando and duncann. I checked the rev D manual and I saw the different output options, multi, XLR only or 1/4"only. There was no reference (as far as I could see) what the volume control knob controls. Did I mis something? So Multi would be the default setting of our setup, but the volume control should only control XLR and/or 1/4" So if you increase or decrease the volume and it affects the s/pdif output does the display show how much? On a side note (@bjnette); increasing the s/dpif output level is a nice option but should ideally be omitted. There is nothing wrong with digital gain, but if you drive the Helix well you should not need to adjust the level in the digital domain. There is no such thing as midpoint digital volume. Your guitar sound and added effects should fit as close as possible to the maximum level the digital domain can handle (= 0dBFs = Full scale) as that will give the best dynamic range and lowest noise. The digital domain should never clip as that is a very nasty distortion. I am not sure if I make any sense but what I am trying to say is that the Helix (and any other digital device) has an internal resolution. If it is 24 bits the dynamic range is 144 dB. The highest volume is 0dBFs the lowest volume is then -144dBFs To make use of this resolution your analog input signal needs to be referred to this. If the absolute maximum level out of your pickup is 1Volt then ideally this 1 Volt should represent a dBFS value as close as possible to 0dBFs. In practice this will be a few dB lower like -6dBFs or -9dBFs to allow for some headroom. Sorry to keep on mumbling about this but recording digitally direct out of the helix should be with a digital level as high as possible. This means the loudest peak attack of your guitar should be as close as possible to 0dBFs. If the Helix represents one of the many tracks that are recorded the mixing should make the level lower as every added track will increase the total volume. But attenuation in the digital domain is always better than having to increase the volume.
  8. Okay, thanks dunncann I understand that this is an option, but in my opinion it should also be possible to have it fixed with zero gain or attenuation. Ideally separate from the XLR outputs. So the XLR source the live speakers and are gain controlled and the S/PDIF has a fixed output to a recorder for instance.
  9. That is indeed the part I was looking for. So the main volume control on the front of the Helix does not attenuate the s/pdif output when that is chosen as the main output?
  10. Thanks again Datacommando. This is indeed part of the information I was looking for. The spec of the guitar input is at least very very impressive. Coming back to my original question to this forum and Line6? Is the s/pdif output attenuated as the main output? kind of runs in parallel? In my preferred setup I will have then two volume controls in series. On the other hand I can crank the digital out to be full and control always the main volume with my TC BMC2. @line6 Digital Igloo; happy honeymoon, and when you are back to it would a block schematic of the Helix be something you can share? It would help a lot with understanding the routing and in/output options. Cheers, Peter
  11. Hi DataCommando, Thanks for your reply and indeed that would work. (what a great forum is this by the way, very little shouting going on as I browsed the different treads) There are a few reasons why I would like this? The MBC2 gives a very good idea of where you are in the digital domain with its nice meters The built in DAC sounds great I use it to listen to another device when the computer is not on (via its Toslink input) The different output options for the DAC have all to do with making the best use of the digital domain resolution. Unless the Helix has a true analog output gain section (which I don't think it has) it can be quite brutal if the outputs are referenced for instance to +24dBu @ 0dBFS that the digital attenuation has to back down 28dB because the connected speakers only need -4dBu (consumer level) to go full power. My KRK's can be adjusted in the analog domain but not all speakers can. A good practice would be to crank the volume all the way up on the Helix and attenuate on your speaker for best dynamic range and minimal noise. This is what I did with BMC2. The audio community made quite a mess of analog audio levels and when digital sound entered the market with zero headroom above 0dBFS the mess only got worse. I know this as I designed A/D and D/A converters for the broadcast television industry and these guys are very picky about their reference levels. The helix will have 24 bit performance but no A/D or D/A converter that we can afford has 24 bit performance. Most are in the region of 19 to 20 bit with 110dB dynamic range. The used codec in the helix has a typical dynamic range of 111dB. If you feed the chip 20db below it rated input you are left with only 91dB, With guitar signals this will be very normal. if you then use the output D/A conversion as well 20dB below rated because your speakers are sensitive you lower the dynamic range even more. I would say 90dB is great for overall system performance and will sound quieter than any tube amp, but 70dB isn't great. I hope this makes sense.
  12. Hi Forum, Hi Line6. I am close to buying a helix Rack with Helix foot controller. It will be used in my small home studio/office space. What I want to do is make the Helix my main USB sound card (now it is a Native Instruments Komplete 6, and sometimes my Yamaha THR10) If I use the Komplete 6, I use the S/PDIF output to a TC BMC2 desktop DAC into a pair of KRK VXT6 speakers and the BMC2 also drives the headphone directly. This BMC2 sounds very decent and the level monitoring sits in the digital domain where 0dBFS is the maximum value. A few questions: I would expect that the S/PDIF output of the Helix routed as main output (kind of parallel to the XLR out) would be a mix of what is presented to the Helix via the USB and local inputs. In may case often a backing track mixed with the guitar. An individual volume control for the USB source would be required then. Is this possible? I would also expect that the SPDIF output would be routed before the main volume control directly out of the mix engine of the DSP's and would have no digital attenuation to preserve absolute audio quality. Is this correct or possible? (this would be ideal when routing to the BMC2) There is a block schematic of the I/O capabilities when used as an USB device. What I couldn't find is a block schematic of the routing capabilities of the Helix and see its inputs, loops and outputs with their routing options seen from the internal paths. Is that available? There were some treads about S/PDIF low volume issues (not sure if these were issues or wrong usage) but to me the internal DSP path is digital. maximum level is 0dBFS. If you use the Helix you need to make sure that the input A/D converter is used all the way up to maximum (or lets say -12dBFS) level when you hit the guitar to the max. Then the DSP and all its engines do their thing mixing other sounds and that way never reach 0dBFS. This is then the stream that should get out of the s/pdif output and only gets attenuated on its analog outputs that ideally has a few analog levels like +4dBu, +15dBu and +24dBu when you crank the volume up all the way to the max. I couldn't find any data on maximum input or output levels. Cheers, Peter
  13. Thanks, I am indeed not that familiar with them but will check them out.
  14. Hi Line6. After some investigation and tests I have decided to purchase the Helix Rack with foot controller in favor of the AxeFX. Your graphic user interface made me look again and again, you did an awesome job. My question in this topic is: can you tell me kind of a device is used in the picture above (silver with the 10 jack connectors) I thought I new gear, but this one puzzles me, even though it might have no use next to the Helix and was put there for aesthetic reasons. Thanks Peter The Netherlands
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