pfsmith0

I use SPDIF into an RME UFX and have to set the HD500 as the master. AES and SPDIF are basicly identical in format but the voltage levels are different. The RME can be set to listen to either SPDIF (consumer) or AES (professional) levels. The RME manual has a section (page 43) on how to build the conversion cable between the two. Basically get a normal shielded 2-conductor mic cable and connect it like this: + XLR -> phono center - XLR -> phono shield XLR shield -> no connect Works great for me, but I don't have to share clocks like you do. I believe the HD500 has to be the master but the RME cleans it up before sending it to the ADAT.

Thanks Martin. I use the Guitar/Aux input and SPDIF output and was able to get a very flat/wideband response. My audio analyzer is the APx525 by Audio Precision, a very nice, very expensive analyzer that has never let me down. Thanks Hurghanico. Sounds like a good option. I'll start there unless I hear from others why this would be a bad option.

Some of you may remember the EQ/FX frequency response and IO Gains I measured a while ago. With all this talk on Cab DEP Parameters I decided to take my HD500 back into the lab and make measurements to see what these are doing. The question I have is what companion amp should I use (I cannot choose a cab w/o choosing the amp first)? It should be clean so it doesn't perturb the signal very much. I'm thinking the Blackface or Soldano Clean. Thoughts anyone? Also, which mic & cab? I'd like these wideband & flat if possible. I only want to vary the DEP parameters and hold the amp/cab/mic fixed. Otherwise, the report will be too busy and it will be hard to tell what's going in. What I'll do is measure the amp frequency response w/o cab, then add the cab (w/ some mic), measure that, then vary the Cab DEP parameters and measure those. So, which amp? Which mic? Which cab? Thanks

I believe the OP is talking about playing live. Let's say he has a patched called up and he's playing along, turning FX on/off. Then he switches to a new patch and plays along. Then he switches back to the original patch. The question is: are the states if the FX the same as when he left them or do they revert to the state they power-up in? I believe they revert back to their power-up state.

I put in a feature request to have the tuner be a 9th FX block so you can assign it to any input(s) you want but it didn't get very many votes. I still think it's a great idea.

Yes, definitely the Aux input. The Mic input Z is way too low. The only problems I know of with Aux are 1) input Z is not programmable, 2) input 6dB pad is not available. These may be minor limitations for you.

No, he means it's a sound pressure issue (SPL). You need to move more air. Our ears hear differently based on what the sound pressure level is.

Also, make sure your input settings are Guitar/Variax (unless you use a Variax). This will reduce your signal by 6dB and give you more headroom for decent crunch tones.

You'd probably want to use the CD/MP3 input since there's no ADC/DAC conversion there and it doesn't use up any processing resources. However, you have no control over PA volume. That needs to be adjusted by the PA guys. Alternatively, use the Aux input and pan it far Right. Pan the Guitar input far Left. You'd only feed the Left channel to the PA. This way you have control of the mix but you'll hear the PA in only one ear unless you use an external Y-adaptor cable to send it to both ears. Here's an interesting idea - use the FX Send loop in only 1 of the signal paths (you have 2). Feed the guitar into Path A, place the FX Loop after the amp sim but before the mixer, and connect the FS Send to the PA via DI box. Then connect the PA signal to Aux in to Path B and on to the mixer to the headphones. This way you control the PA volume in your headset, which you now hear thru both ears. With 2 completely independent signal paths and a variety of input/outputs there is a great deal of flexibility.

I use it for acoustic instruments a LOT. No amp sims. Mostly Parametric EQs (2 to 3) to cut feedback and Studio EQ to equalize the gain between my several instruments (guitar, banjo, uke, mandolin). I also engage a 5dB clean boost (Studio EQ) for solos.

Use it to control the volume of a clean amp pre. The amp block is always present, even if empty. No new blocks are used. Put the amp either before or after the FX send as you see fit.

If it works on two guitars and not the other, then that one guitar is not interacting with the HD500 the same as the others. The ONLY thing I can think of are the pickups and the input impedance of the HD500. Trying changing that. Higher impedance brighter sound usually, so I'd go that route first.

If your audio interface has an S/PDIF input then that would be "the best" interface since you only go thru one data conversion process.

Is this because amps are mono and you're basically adding L+R together resulting in a larger signal?

You can find graphs of what ALL the EQs do here: http://line6.com/support/topic/335-frequency-response-graphs-for-hd500-eqs/?do=findComment&comment=62583

I believe he's saying to keep using the VST to see the output, but change the input from guitar to white/pink noise. That way you can more readily see the shape of the EQ since it's being excited by ALL the frequencies at once. Not just the few produced by the guitar.

There is no stereo input jack. Just mono, so you'll have to use the Guitar and Aux mono inputs or the FX Loop stereo input as jandrio described above. Regarding the noise, it appears there is no noise when the FX Loop is not used, correct? And there's noise when the external pedals run off of batteries or AC power? Is there still noise with the guitar unplugged? Is there noise when the HD500 is unplugged from the computer?

The only thing I know are the sample rates, which are 44.1kHz, 48kHz, 88.2kHz, and 96kHz. Latency is probably dependent on which FX you have engaged. I know there's some because when you adjust the mix between wet/dry on some FX you inadvertently get nulls due to time delays thru the wet path. I really wished they would have incorporated some delay compensation thru the dry path so the signal sums properly.

It sounds like a ground loop to me. If you have a laptop try running it off of batteries. Or try plugging the pod and computer into the same power outlet. Disconnect all the other peripherals from the computer to see if the noise changes.

You should be able to assign the tone control of the amp model to the expression pedal. Bass heel to toe and treble/presence toe to heel. Something like that should approximate what you want.

Please leave an Amazon review of the unit that did not work so that rest of us can see it when we can't find this forum thread in 6 months. Thanks!

That will certainly go from 10k to 0 like you want, but it won't be even close to linear

No, you won't get a linear sweep with a resistor/pot combo. The only way I can think to get a linear sweep is to hook ten 100k pots in parallel, which isn't a very good solution. Have you tried Digikey or Mouser? Would this work? http://www.mouser.com/ProductDetail/Alpha-Taiwan/RV24BF-10-15R1-B10K/?qs=sGAEpiMZZMtC25l1F4XBU1WTGPRHe%252bkusTraLEPePy0%3d

Change input 2 to Variax. That got rid of my hiss. Ground loops don't produce hiss but rather hum.