Attic Ape D18a R04a P02 ZLTaylor4

Tested on a Hi End Maxi-Preamp II tester for Gain (Mu), Transconductance (Gm), and Noise (dB), a gain of <50> is the expected result for NOS in this instance, (please view the test results in the photos). Please note that the boxes included are new production.
  • KB/AD marking confirms its pedigree: KB signifies British military acceptance (Ministry of Supply), and AD is the factory code for Brimar's main manufacturing facility at Footscray, Kent, England. The code 1F1 dates this specific run to June of 1961 (or 1951 depending on the exact label style, though 1961 is most common for this code structure). 
    Sonic Profile Breakdown
    Often described as possessing a classic "British fingerprint" similar to vintage Mullard tubes but with its own distinct flavor, this specific construction delivers a highly balanced and engaging performance: 
    • Mid-range (The Star): Liquid, rich, and organic. It provides a full-bodied, warm mid-range that makes vocals and acoustic instruments sound intimate and lifelike without sounding muddy. 
    • Bass: Powerful, remarkably tight, and layered. Unlike some vintage tubes that get loose or "bloated" in the low end, this version provides great dynamic authority and low-frequency impact, making it excellent for rock, jazz, and classical audio. 
    • Highs: Mellow, smooth, and fatigue-free. It tames harshness or digital glare in a system while retaining better top-end sparkle, bite, and speed than an equivalent vintage Mullard. 
    • Soundstage & Imaging: Exceptional depth and width. A key characteristic of the 1950s/1960s Brimar black plates is their ability to cast a massive acoustic stage while maintaining highly focused, precise instrument placement.

 
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