Radian 1225-8

Diaphragm for 1" Driver

  • 08 Ohm
  • Highest quality 0.008 mm forged Aluminum Alloy membrane with Mylar bead. Replacement diaphragms of JBL and Peavey
  • Significantly lower distortion
  • Suitable for the following drivers:JBL 2425, 2426, 2427 und 2416, 2417 with optional Back-Acp C-1225, 8 Ohm
4 customer ratings:
  • 5
  • 4
  • 3
  • 2
  • 1
4.8 / 5.0
  • quality
3 written ratings Read all reviews
Total
quality

Flawed masterpiece

ff1d1l, 30.03.2018
I'd been thinking a while about getting these replacements for the original JBL diaphragms on a pair of 2416s, the high freq units on some classic 80s studio monitors, the Urei 809s. There had been some very positive postings on the Lansing Heritage forum about these Radians - why I waited so long, and what put me off was the total unavailability of the C-1225 back cap, which is needed for several JBL drivers, including mine. In the end I decided to go ahead and make whatever was necessary to make them work. So the diaphragms arrived and I was able to take measurements and make some perspex backs. This took me most of an afternoon, and I needed:
A vernier
Engineers dividers
A drillstand
A bandsaw with a metal blade
A fretsaw
Files and knives.
Perspex
Superglue
I also had to make a gasket out stiff card.
This was a complete PITA to do, but did work well first time.
On the plus side, the Radians weren't just good, they were transformative - the rough and sometimes spitty and strained quality of the Uries metamorphosed into something big, clear, delicate when necessary and capable of credibly resolving room ambience in 3d. Really excellent sound quality post the Radian installation - blind you would have said they were a different speaker.
So sound and value for money - I'd give them five and a half stars if I could.
Unavailability of the necessary backs - sucks. I'm deducting one and a half stars from a notional five and a half.
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Total
quality

Significant improvement, not a cheap aftermarket!

Monobridge, 21.05.2017
The Radian 1225-8 replaces all JBL Titan D8R2416-1 in 2415/16 drivers in our studio. eg in the JBL 4425 Studio Monitor.
The Radian sound even better than the original Titan version, and are also still cheaper than the JBL Original. The workmanship is excellent, perfect fit, the suspension / suspension is made of Mylar.
This brings a significant improvement over the completely made of titanium JBL version!
Alu has better internal damping than titanium, less maternal resonance. A more natural rendering is the result! The mylar suspension is also fatigue-free.
In summary, the Radian are not a cheap aftermarket replacement, but a clear improvement!
Stay away from the really cheap China aftermarket parts, because they are also 'really grotty'.

Clear purchase recommendation!
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99 €
Incl. VAT; plus 20 € shipping
Free shipping from 298 €
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Offers include 24% Greek VAT and are valid as long as stocks last. Shipping costs to Greece are 20 EUR, free shipping on orders above 298 EUR. Please click here for international Shipping rates. We do not accept liability for typographical errors or inaccurate information of any kind. *RRP = manufacturer's / distributor's recommended retail price in Germany
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