TK Audio SP502
UPC/EAN #7350097200283
MPN #SP502
500-series Class A preamp
SP502 is a new single slot 500-series preamp with a unique hybrid design including both vintage and modern circuits.
A new transformerless input stage forms a clean and transparent front-end, together with the two selectable output stages you can get the low mid punch and thick sound associated with British Class A from the early 70's as well as a more modern clean tone from the 80's and 90's.
SP502 is also equipped with a saturation stage that can be selected to add some extra harmonics to the signal. The sweepable HPF from 30Hz to 400Hz allows precision crafting of the low end. A new function is that the instrument input can be routed directly to the output stage without passing the preamp stage (the saturation circuit and HPF can still be inserted).
The DI direct mode together with the vintage Class A stage gives you a very nice discrete sound path for bass recording.
-Selectable output stages, electronically balanced or discrete Class A.
-Sweepable high-pass filter, 30-400Hz, 12dB/oct.
-Discrete DI audio path.
-70dB of clean gain.
-Selectable saturation circuit for extra harmonics.
-Discrete Class A output stage with Carnhill transformer.
Features
Gain switch in 5dB steps: -15 to -70dB. +15dB to -40 with -30dB pad selected48v phantom powerSelectable output stage: vintage transformer balanced Class A or electronically balancedSweepable high pass filter: 30-400Hz, 12dB sloopSaturation: inserts a saturation stage for extra harmonics after the input stagePolarity switchDirect: routs the instrument input directly to the output stageIn: activates the instrument inputHi-Z input, instrument input with more than 1Mohm input impedanceOutput level controlIlluminated switches (except for the phantom toggle switch which has a separate LED)
Specifications
Power requirement: +130mA / -130mAInput impedance: 2400 ohmInstrument input impedance: 1MohmMax output level: electronically balanced +25dBu, Class A +24dBuDI direct gain: +15dBTHD+N @ +20dBu electronic balanced output: 0,0008%THD+N @ +20dBu Class A output: 0,007%THD+N @ +20dBu saturation active: 0,9%Frequency response electronic balanced: -0,6dB @ 80kHzFrequency response Class A: -0,5dB @ 20kHz
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