Geithain RL 903BK
Coaxial point-source studio monitor
Studio MonitorPrice not published
Specifications
- Type
- Studio Monitor
- Description
- Coaxial point-source studio monitor
- Topology
- 3-way coaxial with cardioid bass; broadcast-oriented variant of RL903K
- Signal path
- Analog
- Channels
- 1
- Form factor
- Freestanding speaker cabinet with separate amplifier (MDF, ash black veneer standard)
- Connection
- Analog XLR
- DSP
- No (analog electronic crossover, 250 Hz / 2.6 kHz)
- Powered
- active
- Power (W)
- 180W LF / 100W MF / 100W HF @ 4Ω (integrated 3-way MOSFET amplifier)
- Drivers
- 200mm woofer; 130mm midrange; 25mm dome tweeter, coaxial mid/high unit
- Frequency response
- 35 Hz – 20 kHz ±3 dB
- Max SPL
- 110–115 dB @ 1m (100 Hz–6 kHz)
- Sensitivity
- >89 dB @ 1m (-14 dBu calibration)
- Polar pattern
- Cardioid in bass range (~35-250 Hz)
- Impedance (Ω)
- Input ≥10 kOhm (RC balanced); driver load 4Ω
- Back design
- Separate amplifier unit (475x279x120mm, 11kg); rear XLR input, noise floor ≤7dB(A) @1m
- Country of manufacture
- Germany
Details
Controls: LED clipping/overload indicator (20dB protection); rotatable mid/tweeter unit for horizontal/vertical positioning
I/O: 1x XLR 3F balanced analog input, ≥10 kOhm (RC balanced) input impedance
Notable use: Marketed explicitly for broadcast van (OB van) applications
Notes: 3-way coaxial cardioid-bass monitor, broadcast-focused variant with separate amplifier. No price published on manufacturer site (EUR-market, contact dealer). Speaker 415x254x275mm/15kg not carried into schema.