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Call Us Toll Free888-528-9703
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SPL Stereo Vitalizer Mk3-T Program Equalizer - Used From SPL
The patented Vitalizer circuitry makes the Mk3-T an unsurpassed sound designer. Whether live or in the studio, audio productions sound more alive, have more details, more transparency, a higher perceived loudness and, if required, an overwhelming bass foundation. In Used, Mint condition
$970.00
No Sales Tax in 45 States.
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Rating: 4.9
Payments as low as $22/mo.
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What We Think
At Sound Pure, we often talk to engineers trying to solve a tough mix problem: how do you get a mix to sound louder, wider, and more detailed without driving up peak levels, altering the core tonal balance, or creating listening fatigue? The SPL Stereo Vitalizer Mk3-T is one of the most effective hardware solutions ever designed to tackle that exact challenge.
Unlike conventional equalizers that simply boost or cut specific frequency bands, the Vitalizer works on psychoacoustic principles—masking unwanted frequencies while revealing subtle harmonic details your ears naturally tune into. The Mk3-T pairs this patented filter architecture with a pair of high-voltage 12AX7/ECC83 dual triode tubes, adding a rich layer of analog tube warmth and subtle harmonic saturation.
What sets the Mk3-T apart in a modern studio is its incredible versatility. The Bass Sound control lets you choose between tight, punchy low-end or deep, soft contours, while the Mid-Hi Tune control selectively enhances clarity and vocal presence. To top it off, SPL’s renowned Stereo Expander circuit widens the soundstage naturally without introducing phase issues. It’s an essential secret weapon for mastering engineers, mix buses, and stem-processing rigs.
Key Takeaways for Your Studio:
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Psychoacoustic Clarity: Uncovers masked details and enhances perceived loudness without increasing digital peak levels or causing ear fatigue.
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Integrated Tube Architecture: Driven by two matched 12AX7/ECC83 tubes to add smooth high-frequency sheen and vintage analog body.
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Upgraded SPL Internal Rails: Built with high-voltage internal audio rails for higher headroom, exceptionally low noise floors, and superior dynamic response.
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Intuitive Tone & Width Shaping: Features dedicated Bass (Tight vs. Soft), Mid-Hi Tune, Process Intensity, and a natural Stereo Expander circuit.
If you are looking to take your mixes from "good" to standard-setting professional depth with effortless top-end air, rock-solid low end, and wide spatial immersion, the SPL Stereo Vitalizer Mk3-T belongs on your master bus.
Manufacturer's Description from SPL
The Vitalizer is based on findings of psychoacoustics and audiometry.
Its filter network is one of the few patented filters.
It makes the richness of detail of audio signals more audible. Interventions in the sound image are more of a musical nature. Music productions sound more natural, lively, differentiated, easier to understand, more deeply layered and more widely spread apart.
Vitalizing
Drive controls the level going into the filter network. The bass emphasizes a soft or hard tone and the compressor catches level peaks.
Mid-Hi Tune sets the frequency of operation above which frequencies are boosted and below which frequencies are cut.
Process Level adjusts the intensity of Mid-Hi Tune and bass.
In addition to the Vitalizer core circuit, the Stereo Vitalizer Mk3-T features a high frequency and harmonics stage with coil filters (LC) and a stereo expander to broaden the stereo image.
The De-Masking
A key feature of the Vitalizer is the unmasking of superimposed sound components. The Vitalizer thereby relates the time of perception of a frequency to its amplitude. Through a minimal temporal offset of loud frequencies, quieter, previously superimposed sound components are “de-masked” and thus become audible.
The Adaptation to Curves of Equal Loudness
The non-linear sensitivity of the human hearing is described already in the 1930s by the “Fletcher-Munson curves”.
These “curves of equal loudness” (today defined by the standard ISO 226:2003) illustrate the equal perception of loudness as a measure of sound pressure level, over the frequency spectrum, for which a listener perceives a constant loudness when presented with pure steady tones.
The Vitalizer adapts the frequency spectrum to the curves of equal loudness, which improves the loudness perception in particular.
Inputs & Outputs
The two channels of the Stereo Vitalizer Mk3-T are equipped with Neutrik XLR sockets and jack sockets connected in parallel. The signal transmission is electronically balanced with a nominal level of +6 dB.
About Manufacturer
Sound Performance Labs! Full Range of Analog, Tube, and Digital rack gear with an innovative twist. With their most famous transient designer product, SPL has quickly become a household name in both the recording and live sound arenas.
Specifications
Analog inputs & outputs; XLR & TRS Jack (balanced)
Maximum input gain: 22 dBu
Input impedance: 22 kΩ
Output impedance: 600 Ω
Common mode rejection (1 kHz): 85 dB
Frequency range (-3dB): 10 Hz – 100 kHz
THD + N (0 dBu, 10 Hz – 22 kHz): 0.0019 %
Noise (A-weighted): -99 dBu
Dynamic range: 121 dB
Internal Linear Power Supply with Toroidal Transformer
Operating voltage for analog audio: +/- 15 V
Operating voltage for relays and LEDs: +12 V
Mains Power Supply
Mains voltage (selectable): 230 V AC / 50; 115 V AC / 60 Hz
Fuse for 230 V: T 315 mA
Fuse for 115 V: T 630 mA
Power consumption: max. 20 W
Dimensions & Weight
W x H x D (width x height x depth): 482 x 44 x 237 mm, 19 x 1.73 x 9.33 inch
Unit weight: 3.4 kg, 7.5 lbs
Shipping weight (incl. packaging): 4.75 kg, 10.47 lbs
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