IK Multimedia Ampeg SVX Bass Amp Plug-In
By Barry Rudolph
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IK Multimedia's Ampeg SVX Bass Amp is a complete virtual bass guitar rig--a signal chain optimized for live performance recording--posing as a plug-in. SVX uses the company's DSM technology to model Ampeg bass guitar-amplification products using a GUI that any bass or guitar player will instantly recognize.
SVX runs at up to 96kHz sample rates as a mono or stereo RTAS, VST or Audio Units plug-in on both Macs and PCs. It installed and worked perfectly in both a Pro Tools HD3 Accel system running on a Mac Quad-Core computer and on a PC with an AMD Athlon 4600 x2 chip running Steinberg Nuendo Version 3.2.
Getting around the interface is facilitated by images of the modeled amps, heads, pedals and speaker cabinets surrounded by a navigation frame. Each model looks and operates like the original using the same controls and matching companion speaker cabinet.
At the top of the frame is the Preset Manager menu where preset amp head/cabinet/microphone/stomp pedal combinations are recalled, modified, and saved. There are two categories, Amps and Styles.
Under Amps are: BA-500 solid-state, all tube B-15R Portaflex "Flip Top", the powerful SVT-Classic, and the SVT-4Pro with tube pre-amp and transistor power amp. There are a total of 39 presets of front panel amp setups with names like "'60's B-15-1" or "Phat SVT-Direct-CL."
The Style category has 77 playing style-specific presets for fingered, muted, plucked, slap, picked, and synth styles. Synth makes any bass guitar, sound like a synth bass with sub octave, envelope and/or resonant filters--a cool option.
At the navigation frame's bottom is where input/output levels are measured and controls for the master output, direct, and mix levels between direct and amp reside. The Phase knob adds 0 to 20ms of delay to reconcile the phase difference between the amp and direct signal. Lastly, there is a parameter window showing the currently selected control's numeric value; a small tuner window with an alphanumerical pitch readout and sharp/flat meter; and the Pref button for setting the modeling resolution of the power amp stage.
CHAIN, CHAIN, CHAIN
The six cabinets available are: BA-500 (2 X 10-inches); B15R (1 X 15-inches); BXT-410H (4 X 10-inches); PB-212H (2 X 12-inches); SVT-410 (4 X 10-inches) and SVT-810E (8 X 10-inches). All of the cabinets (except the SVT-810E) have adjustable high frequency drivers accessible on the rear side of the cabinet that 'flips' around whenever you click on the High Level button--cute!
Each speaker cabinet offers a choice of six standard dynamic and condenser mic models from Electro-Voice, Shure, Neumann and more, with on/off-axis and near/far positioning--you'll hear the concomitant difference in the proximity effect of the cardioid mic models. The ambience level fader adds a synthetic room tone that sounds better in mono than in stereo.
The microphones modeled are: Dynamic 20 (Electro-Voice® RE-20); Dynamic 57 (Shure® SM57); Dynamic 421 (Sennheiser® MD-421U); Vintage Dynamic 20 (AKG® D-20); Condenser 87 (NeumannŽ U-87); and Condenser 414 (AKG® C-414).
The stomp pedal board gives you overdrive, an octave divider, analog chorus, up to 500 ms of analog delay, a compressor, bass wah with auto-function, a funky envelope filter and volume pedals.
SO MANY CHOICES
While working on a song, I set up my skeptical bassist using a Countryman DI box and a Neve 1272 mic preamp. In Pro Tools, I used an aux track with the SVX instantiated and bused its output to an audio track. SVX has 100 samples of latency in Pro Tools and presented no problems when I recorded through it live.
We settled on a preset under the Fingered style called Bass Sustain, which features the SVT-4 Pro and the BA-500 cab. We changed the mic to the Vintage Dynamic 20 mic, placed in close proximity and on-axis to help cut through the guitars. I didn't compress going into Pro Tools, leaving that to the amp model. The included stomp compressor left me wishing for an insert path so that I could insert my favorite compressor.
There was a bridge section in the band's song where the bass player wanted to add chorus and distortion. SVX allows complete dynamic automation of all settings, including those for the pedals. Once the bridge bass part was played once, I worked with the musician to get the desired treatment by inserting SVX on a direct bass track I had also recorded. Afterward, I saved his setup and loaded it into SVX instantiated on the aux recording channel. He went on to perfect his performance hearing the bridge effects every time in each successive take. My bass player was an SVX believer after that session.
STUDIO TOOL AND MUSIC MAKER
Overall, the GUI is easy to use with its familiar layout, and the package offers myriad options and sounds that are only possible in the virtual world. The SVX Bass Amp plug-in is just what the doctor ordered for the engineer trying to dial in a unique bass sound in a hurry. Price: $399
IK Multimedia, 954/846-9101, www.ikmultimedia.com.
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