Description
This is a bi-amplifiable 2-way professional control room monitor from the mid-1980s.
Much more serious studio tool than the 4315.
📊 Specifications
Type: 2-way bass reflex studio monitor
Woofer: 12" (JBL 2214H)
HF Driver: 1" titanium compression driver (2416H)
Horn: Bi-Radial constant directivity horn (2342)
Frequency Response: ~40 Hz – 20 kHz
Power Handling: ~200W continuous
Sensitivity: ~91 dB SPL (1W/1m)
Nominal Impedance: 8 ohms
Crossover: Around 1.2 kHz
Controls (front):
HF level @12kHz
Mid level @2kHz
(Those knobs in your photo)
Weight: ~32 kg each (heavy!)
Made in USA
🎯 Key Features
1️⃣ Bi-Radial Horn Technology
This is important. The 4425 was one of JBL’s early constant-directivity horn monitors.
✔ Wide sweet spot
✔ Controlled dispersion
✔ Big studio imaging
✔ Very forward mid clarity
2️⃣ Titanium Compression Driver
Very detailed and dynamic highs. More “studio aggressive” than hi-fi smooth.
3️⃣ Punchy 12” Woofer
Fast, tight low-end. Great for:
Rock
Electronic
Pop
Drums
Live tracking
🎧 How It Sounds
Compared to modern monitors:
More forward midrange
Bigger, more physical presentation
Not ruler-flat
Strong presence energy
Excellent transient attack
For progressive house? ✔ Great for checking punch ✔ Great for mid clarity ✔ Great for club translation ✖ Not ultra-surgical like ATC, Barefoot, PMC