Radian 850 Matched Pair

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Radian 850 Matched Pair

from 700.00

Radian 850PB-8 tweeters. We love these things—yes they are big and heavy, but they are so sweet and agile. All offered here are tested for pass/fail and then paired. How tightly do each of the grades pair? See detail and traces below.

  • 600–18kHz bandwidth (horn dependent).
  • 2" throat.
  • 4" x 4 mounting (M6 threads).
  • 8" OD x 3" tall.
  • 15 pounds.

Radian 850PB Ad Copy + Spec's Download

Price Includes:

2x Radian 850PB-8 drivers (matched).
60-day satisfaction guarantee—we cover your return shipping.
5-year warranty on materials and workmanship.

Match Grade:
Quantity:
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  • Grade-2 PRIME are not offered and only used within Zu loudspeaker systems.
  • Grade-2 (≈20% of all matched sets). Pairs receiving this grade have nearly identical tone prints and dynamic behavior. Average nominal SPL difference between pair is zero.
  • Grade-1 (≈35% of all matched sets). Above average matching having nearly identical tone prints and dynamic behavior but allow for a few subtle divergence. Average nominal SPL difference between pair is 1/8dB.
  • Standard Grade (≈40% of all matched sets). "Standard" is still a pretty tightly matched pair but allows for a few points of divergence within the tone print matching process. Average nominal SPL difference between pairs is a very low 1/4dB.
  • ≈2% of the APT50 drivers do not pair to our Standard Grade level and are used in center channel systems or sold as singles.
  • ≈2% of the APT50 drivers do not pass our pass/fail tests and are either recycled or used for R&D.
Radian 850 Standard Grade Matching—Differential Comparison. Measured at 110dB-SPL

Radian 850 Standard Grade Matching—Differential Comparison. Measured at 110dB-SPL