The original Requisite PAL (Preamp and Limiter), introduced in 1998, was based on a combination of our original Y7 microphone preamplifier and our L1 optical limiter. Within a year, the Requisite PAL was outselling all four versions of the Y7 and L1 combined.
For us, this established the Requisite PAL as a permanent platform for continued development and refinement. Components and construction are the highest quality seen in the audio industry today.
Each unit is point-to-point hand-wired to solid Teflon terminal strips and oxygen free copper post. All audio transformers are based on classic designs, upgraded wherever appropriate, and made to our specifications.
High-grade polypropylene capacitors are used exclusively in the signal path. Polypropylene caps are also used for B+ filtering, making the Requisite PAL Plus MkIII the only pro audio product that does not use electrolytic caps for filtering.
Allen-Bradley carbon composition resistors, gold switches, gold and ceramic tube sockets and special solid-core audio wire are all selected for their tonal character and reliability.
This design approach has yielded characteristics that include wide bandwidth, low noise, low distortion, reliability and truly high-fidelity performance making the Requisite PAL Plus MkIII a “must have” for any professional recordist.
Special Features
Mic/DI Feedback
Left to run freely, vacuum tubes tend to exhibit a considerable amount of harmonic generation and other forms of distortion. For over half a century, negative feedback has been engineered into circuits to “improve” the linearity of vacuum tubes when used in audio gain stages. However, best readings on a meter don’t always equate to the ideal sound (whatever that happens to be). By making MIC/DI FEEDBACK an adjustable feature, harmonic content and texture are in the creative hands of the audio engineer and not the guy with the THD meter.
Dual Meters
The Requisite PAL Plus MkIII features a full-time VU Meter and Gain Reduction Meter. This allows the user to monitor both actions simultaneously without needed to switch between the two functions.
Mic Link
Unique to the Requisite PAL Plus MkIII, the Mic Link switch allows for inter-connection between two PAL microphone preamplifiers (a second Requisite PAL and inter-connect cable is required). Because of where (within the circuit) the connection is made, the microphone only “sees” one preamp and is loaded as it would normally be, using just one preamp. Having one mic drive two mic-pres offers many sonic and creative possibilities, especially when one considers the broad range of tonal variation of the PALs variable gain structure, variable feedback circuitry and limiter functions. Layering from a pair of Requisite PALs is encouraged.
