Positive Grid Bias Fx Free Download
Maybell Hughs
Hi. Just tried the BIAS desktop on osx. Wow, I was blown away... Never ever felt this about any software amp before. Starting to doubth if I am really hearing and feeling right... (used the demo with Ableton live, and a Fireface UC)
Maybe Bias in the effect loop so I can get effects before and after the amp. What do you think? Maybe scary to take my laptop on stage... Last gig I had I just used the Hd500 and two dB 8" Twin monitors. Sounded good, but I was not able to get any good crunch (should have tweaked moore I guess).
I've played with BIAS for iOS in the effects loop and it sounded great. The Mac OS X app should work just as well in this situation. How are you sending the audio from your laptop to the POD's effects loop?
I also tried other amp modellers such as Overloud TH2 and I believe they sound much better than the HD500X models (for a detailed explanation, see here -is-my-hd500x-broken-low-volume-distortion-fizz/?p=82665 )
I think for heavy metal or rock rhythm parts the POD does actually amazingly well though. Maybe it's just personal preference, but I wish I had an Axe FX II to be able to compare both on all these aspects.
I got an HD500X for convenience, and because I have a Variax 700 Acoustic and a Variax 300 with a Fishman TriplePlay added. I use MainStage with S-Gear to manage the tones, S-Gear is the digital amp, and other MainStage tracks contain the VIs for the TriplePlay. I like technology I guess.
When I first got the HD500X, I spent some time trying to reproduce the wonderful tones I can get from S-Gear. This proved to be quite difficult. S-Gear does not model amps, it is a small collection of boutique amps that just happen to be implemented in the digital domain. Mike Scuffham has made an outstanding product that seems to be way ahead of the typical amp modelers. So my setup is to use the HD500X as an audio interface and MIDI controller for MainStage and S-Gear, using some of the front of the amp effects from the HD700X into S-Gear, and using S-Gear's modulation, delay and reverb after the amp effects. This is a fantastic sounding setup, and is quite easy to use. I'm planning on a blog post on this as soon as I can get to it. The setup was somewhat complicated (but I actually like that).
But, the HD500X is certainly convenient by itself too. So I studied what Mike has done in S-Gear to make those wonderful tones. What I found was there's a lot of tone voicing in the drive, channel, bass, mid and treble shift switches. Typically S-Gear amps roll off more bass and treble the more distorted the amp becomes. This avoids mud in the bass and fizz/ice pick in the high end, and keeps the distortion musical and responsive.
I found by using the vintage pre directly in front of the blackface or other amps, and using the low and high-pass filters plus the gain controls helped create similar voicings in the HD500X. Removing the cabinet resonance and using the vintage pre for voicings seemed to result in very nice tones from the HD500X. They're not as good as S-Gear, but they're certainly useful.
I did a similar study a while back on Bias. See: S-Gear and Bias/JamUp. This was before Bias desktop, but I think some of the points still apply since whatever you create in Bias desktop can be loaded into JamUp on an iOS device.
I will try out, maybe today, BIAS in the effect loop. Routing will be effect send stereo to input 3 and 4 (instrument/line input) on Fireface, and return from 3 and 4 on Fireface. Just that everything on the Fireface is balanced ins and out... on the pod hd500 its unbalanced? Will be interesting regarding noise. The phones output (fireface) is unbalanced so maybe I will try that.
Some years ago I used the MacBook with Ableton Live (as an reverb/delay unit) with 2 Fender Hotrod deluxe amps. Also a lot of stomp boxes :-) This was in a rough enviroment with a lot of drunk people... Had no problems at all and it's very seldom that the MacBook stop working, if ever. Maybe buy a Mac Mini and a rack with a lcd screen and mount the sound card... Or just the Pod hd500x or just the Blackstar Artisan with pedals... Hm... To much fun! :-)
A little soundtrack for you! Pod Hd500x, BIAS, Amplitube, OSX, Fireface UC, Fender Strat Deluxe HSS, Epiphone Zephyr (1999 made in the peerless factory) and Band In A Box as drummer and keyboard man :-) All guitars are played once and there is just some eq editing. The bass is Amplitube guitar to bass, with some compression and eq and played by me, the first take, on my Fender Strat. So fun to do that.
This was made in a... what can I say... Had a hard time with Rme Totalmix. Made me almost crazy... :-) Well, crazy I am, but the routing thing was hard and therefore it made me do only one "try" at each track! I did overdo the compression (don't remember, but something like Red Comp...) on the lead guitar. The backing guitar had a lot of noise gate... I just forgot to turn it of.
The bass sound is just right in my head phones and on my hifi. I am not an sound engineer. I am aware that things will sound different on other hardware. You must also remember that the bass is my Fender Stratocaster Deluxe through Amplitube (guitar to bass). I am really impressed on what they managed to do with that preset. For me it sounds like upright bass with some... hm... strange things. It was the first thing I recorded and I did not change a thing, even though the timing was a bit off sometimes.
I missed that part about it being a simulated bass from guitar, must have spaced out while reading. I guess that would explain why something sounds a little off about it. But it does sound good for how it was accomplished. I also listened to it through sony mdr-7506 headphones.
The Pod Hd500x was only used as effect gear. I used the cabs and amps from BIAS. Maybe they (line6 and positive grid) sound the same, but the "feel" when playing is very different. I briefly tweaked the gear, so don't blame the pod or the bias (or amplitube) for bad quality. I will make something else when I got the urge and time :-)
I just bought the Bias rack and it sounds really awesome simply in full range studio monitors... I got great tones with minor adjustments... Those tones have nothing to do with the pod HD500 amps... I know it is not the same technology nor the same price, but I worked for two years to find a real good tone with the Line 6. I even bought the Metal pack, hoping that I would find something decent... I tried everything, using the pod'EQs, esxternal EQ (31 bands), but never got a real great simulated tone; in addition, the memory is quickly overleaded... However, I appreciate the HD500 for the effects combined with the BIAS. I got best of both worlds.
Hi! I plan to order the bias head at the end of the month, and I wonder if you've tried using your HD500 as a midi controller for the rack. I asked a guy on youtube who said he had some issues and that it was because of the POD. I've seen people using it successfully together with a Kemper, so I can't see why it shouldn't work with the bias... I have a 500X that I plan to use for control and effects. I've also spent countless hours of tweaking POD presets, but I just can't get the "bite" that I look for in high gain metal tones :P
Experimental studies investigating turbulence, and sheared flow were carried out using the linear Helicon-Cathode (HelCat) device. Without any outside influence, such as biasing or momentum input, fluctuations were observed. The dynamics of these fluctuations was found to vary with magnetic field, varying in both frequency and mode number. At low-field, the fluctuations were observed to be coherent, while at high fields, they were found to have turbulent characteristics. The first goal of this work was to identify the drive of the fluctuations. This was completed by taking detailed radial measurements at two axial positions at five magnetic fields: 19.2 mT, 44 mT, 61.6 mT, 79.2 mT, and 129.5 mT. Experimental results were compared to linear theories, and analysis was completed to identify the mode at each magnetic field. In addition, the results were verified using Linear Stability Solver code (LSS), which utilized the electrostatic Braginskii equations. Both results indicated that the mode was a hybrid mode between the Kelvin-Helmholtz instability and the drift-wave instability. The generation of this hybrid mode is believed to be caused by changes in the axial parameters, particularly the density and potential gradients. In order to affect these fluctuations, and explore the effect of sheared flow, a gridded electrode was placed 0.7 m downstream from the source. This grid was nearly $70\\%$ transparent, and had a diameter of 17 cm, which covered the majority of the plasma radius, which is estimated to be 20-30 cm in diameter. The electrode was biased with respect to the chamber wall, thereby generating a radial electric field. This in turn is modifies the azimuthal flow, which is believed to be E$\ imes$B dominated. Grid bias was found to have various effects depending on the bias and magnetic field strength. It was found that the application of negative grid bias ($V_g=-40$ V) once coherent fluctuations were driven into a broad-band turbulent mode. The electric field in was observed to become strongly negative (inward pointing) with the negative bias. At lower magnetic fields, this resulted in a steeper electric field gradient, which corresponds to a steeper shear flow. However, at high magnetic fields, the shear was not as steep, indicating a change in the drive-physics. With an increase towards positive bias, the fluctuation magnitude of density and potential was exhibited to decrease. However, it was found that the density-potential cross-phase, and fluctuating radial flux, increased initially. This initial increase changed as the turbulent fluctuations were observed to transition to a coherent mode, where it was observed that the flux more closely followed changes in the density and potential fluctuation magnitude. With a positive bias, the fluctuation levels could generally be reduced, and at certain radii, suppressed. Again, changes were observed to occur in the radial electric field, with the field now exhibiting both positive (outward pointing) and negative (inward pointing) components. At low magnetic fields, the shear decreased at inner radii, but increased at the edge, which was consistent with the drive regions of the Kelvin-Helmholtz mode whose drive was stronger at inner radii, and the drift-mode whose drive dominated at the edge. However, with higher magnetic field, positive bias lead to stronger shear overall. In the higher magnetic field case, B=129.5 mT, a positive bias up to $V_g=+40$ V was applied, and appeared to have minimal effect. However, flux data and fast imaging revealed that the positive bias lead to a shift in the turbulence. With negative bias, the flux was strongly outward, but the positive bias lead to a fully inward transport of flux. This was captured and verified with fast imaging. The exact nature and effect of this inward flux is still not well understood. The last part of this work focused on a purely non-linear instability known as the potential relaxation instability, or PRI. This instability was first generated by accident, and was found to exist only at low magnetic fields. It occurred when a high positive bias was applied; this resulted in the rise of large scale fluctuations, with density fluctuations magnitudes $\ ilden/n>50\\%$. Plasma from unbiased boundaries was found to travel axially towards the biased electrode, and to be accelerated to supersonic values $v\\approx 2-3c_s$, where $c_s$ is the nominal ion sound speed.
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