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The AD 3700 is Sennheiser's active directional receive antenna with the AB 3700 booster built into the housing. In a rig it feeds Digital 6000 or 2000-series receivers, or an ASA antenna splitter, over a long coax run from the stage.
It covers 470 to 866 MHz. The amplifier has four settings, bypass, 5, 10 and 15 dB, and an LED shows the setting in color so you can check it from across the stage. Set it to offset the loss of your cable run. The antenna takes 9 to 15 V DC bias over the coax from compatible receivers or splitters, so it needs no separate power supply.
Pick it when receivers sit far from the stage and you want gainHow much the preamp amplifies the incoming signal. Too low and you’re hunting through hiss; too high and peaks clip. right at the antenna. If the run is short, a passive paddleA directional antenna (paddle, LPDA, helical) aimed at the stage — focuses coverage where the performers are and rejects RF from elsewhere. avoids the risk of overloading the receivers. It is receive only, so keep it off IEMIn-Ear Monitor — earpieces that replace floor wedges, feeding each player their own mix. The reason this whole rack exists. transmitters.
Learn the route as a block diagram: source, product function, transport, and destination. Select any block to see what enters, what changes, and what leaves.
Each block answers the same three questions: what arrives, what changes here, and what leaves.
Power arrives through a documented signal or data connection.
Switch the product view and the documented port inventory updates with it—hardware and data stay side by side.
Switch panels to keep the hardware view and the documented port list in sync.
| Port | Panel | Connector | Direction | Signal | Channels |
|---|---|---|---|---|---|
| RF Out + DC Bias In (BNC) | rear | bnc | output | antenna | — |
Showing 1 of 1 documented physical ports.
| Compare | External unit | |||
|---|---|---|---|---|
| Fit | 📐 Outside rack | 📐 Outside rack | 📐 Outside rack | 📐 Outside rack |
| Power | ⚡ Bus | ⚡ 0W | ⚡ 0W | ⚡ 0W |
| Weight | ⚖️ 1.4 lb | ⚖️ 0.3 lb | ⚖️ 0.8 lb | ⚖️ 0.7 lb |
| Routing | 🔌 1 | 🔌 1 | 🔌 1 | 🔌 1 |
| Estimate | 💵 ~$1,099 | 💵 ~$219 | 💵 ~$280 | 💵 ~$399 |
| Deep dive | Current selection | Full comparison → | Full comparison → | Full comparison → |
Short, source-backed answers surface rack fit, power, cabling, and connection details before they become surprises.
The catalog assigns it no rack units. Builder tracks it as non-rack gear; follow the manufacturer’s mounting, case, and form-factor guidance.
It is powered through its documented signal or data connection rather than a separate inlet.
1 documented physical ports, including RF Out + DC Bias In (BNC).
