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| Vox AC15C1. |
Friday, July 26, 2024
Vox AC15C1 Combo
Tuesday, May 7, 2024
Peavey 6505 Original 1992 Amp
I’ve been wanting a Peavey 5150 on and off for years, and finally jumped at the new Peavey 6505 Original 1992 model. The 5150 is a classic amp in hard rock and metal, and I wanted to experience the real thing after playing through the various digital models of it over the years.
A quick clip of my Epiphone Les Paul through the Lead Channel, first through a V30, then a CL80:
I’ve been focusing my time on the Rhythm Channel, with Crunch and Bright settings engaged, to dial in rock rhythm sounds. The most useful sounds to me on this channel are with the Pre-Gain at 6-7, EQ at moderate settings, Resonance 5-8, and Presence around 8. From reading various forums, a popular way of running the amp is boosting the Rhythm channel with the Pre-Gain around 6.
The Lead Channel is much higher gain. Setting the Pre-Gain at 3-4 is where I top out at. It is a tighter and thinner sound compared to the Rhythm channel.
As I dug deeper into the 6505, I wanted to try the ubiquitous Fredman mic technique. I initially thought I would just set up 2 mic stands, but I was too lazy. I ended up buying a mic clip from Fredman Digital to do it the right way. The intended angle of the off-axis mic is apparently 55 degrees. I didn’t have a second SM57, so I used a Shure 545SD instead. I can see why it was such a popular way to record the Peavey 5150.
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| Fredman mic clip. |
Thursday, August 10, 2023
Neural Amp Modeler
I decided to check out Neural Amp Modeler out of curiosity, and the fact that it is free. I've been wavering about purchasing IK's ToneX, but will probably eventually join the ecosystem.
I immediately tried to capture my Plexi circuit amp through a Suhr Reactive Load. I used the provided v2_0_0.wav file to reamp into my typical settings. I am still trying to get a grasp on ESR and number of Epochs for a sufficient capture. Other users on the NAM Facebook group informed me that 1000 Epochs for high gain and 500 Epochs for lower gain was typical.
Using the Google Colab set up by NAM, training a 1000 Epoch model takes about 1 hour and 40 minutes. I am surprised that a 290kb NAM file can contain such a detailed snapshot of my amp. I also like that the plugin is straightforward, laid out without bloated effects and features.
I've found a lot of useful captures of amp types on ToneHunt and the NAM Facebook group that I don't have in my collection. The amp selection is skewed towards high gain amps (Mesas, modded Marshalls, 5150s) , but there are some lower gain varieties as well. Some users have provided the dBu calibration information, which makes it as close to virtually connecting to someone's setup as it can get.
To be continued.
Tuesday, August 10, 2021
Line 6 HX Stomp Battery Power with Mission 529M
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| HX Stomp with battery concealed underneath. |
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| HX Stomp with Pedal Riser. |
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| Battery cabling under Riser. |
Friday, October 16, 2020
Line 6 HX Stomp
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| HX Stomp Pedalboard. |
I bought a Line 6 HX Stomp to get myself into the latest generation of hardware amp modelers. I decided to go with the HX Stomp over the Fractal Audio FM3. The smaller size of the HX Stomp is much more favorable at this point, but I do intend to try the Fractal Audio modeling one day.
I was a bit underwhelmed by the modeling in the Line 6 POD HD desktop for years, but started to warm up to its modeling recently. Before getting the HX Stomp, I was playing through the preamp models into a VST plugin chain: Ignite Amps TPA-1 power amp and impulse responses in Redwirez MixIR2. I also started using the POD as a hardware insert for its effect models in Reaper.
My main draw to a new hardware modeler was a standardized input into the digital realm. Gain staging is inconsistent between different brands of VST amp modelers. Furthermore, each interface manufacturer has their own line level input levels. My original reference setup was a Waves/PRS Guitar Interface (gain at minimum) into a Focusrite Saffire Pro 26 Line Input (maximum level +28dBu). I was recording bridge humbucker DIs with peaks at around -10 to -12 dBFS. Kazrog Thermionik amp sims required 6-12dB trims on the inputs, while Scuffham S-Gear required significant boosts (maxing out the input trim at +6dB). I was getting reacquainted with the recording unaffected DIs through the POD HD recently, and it warmed me up to the idea of the Helix family of modelers.
The HX Stomp allows me to record DIs on my desktop or iPad/iPhone at the consistent levels that are appropriate for the Line 6 amp models. Helix input levels were about 3dB lower than my Waves/PRS Guitar Interface - Saffire setup.
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| Reamp routing with the HX Stomp. |
I can record an unaffected direct signal into my DAW while monitoring through the HX Stomp. I can then take the dry unaffected signal and reamp it through my amp using one of the the HX Stomp's loops to fine tune the sound. I like that this sort of reamping can be easily moved from location to location, with my iPhone serving as the DAW.
I immediately gravitated towards the Brit Trem Brt model, as this sounded most like my Plexi amp build set to early Lead Spec (split cathode, V1b 0.0022 coupling cap, no V2a bypass cap) with no bright cap. Despite the differences in circuitry, the Treble, Middle, Presence, and Gain knobs were in the same ballpark. The behavior of the Bass knob on the HX Stomp did not scale the same way as the real amp, but I am able to dial in the two sources to be very similar. With the amp's bass on 2, the equivalent Helix setting is about 7. The Brit Trem Brt was modeled after a shared cathode '68-'69 1987 Tremolo with bright cap, which would explain the major difference. The noise floor is much better with the Helix model when compared to the real amp, which is a major plus.










