From mono vocals to symphonic orchestra – Three variable capsules in one microphone to ensure maximum flexibility.
Based upon a design of Dr. Edwin Pfanzagl-Cardone, head of the acoustic department of the Salzburg Festival (Salzburger Festspiele), Nevaton designed a unique microphone which gives a direct reference to the inventor in its name – Nevaton BPT, Blumlein-Pfanzagl-Triple, a three-capsule mono, stereo- and surround-microphone with centre-zoom function.
The Nevaton BPT combines several functionalities in one single microphone
It is a large-diaphragm, multi-pattern condenser microphone, plus a mono/stereo microphone suitable for a wide range of stereo recording techniques, as well as a surround microphone capable of recording all five primary surround channels.
The Nevaton BPT provides a beautiful and incredibly accurate stereo (or surround) image. A third center-capsule allows to add as much acoustic focus to the centre image as needed.
The microphone has switchable directional patterns, which means that the centre capsule can be switched to cardioid, to figure-eight or to omni characteristics, the side capsules can be switched to figure-eight or cardioid as well.
The Nevaton BPT microphone offers a lot of advantages:
The Nevaton BPT is a “one mic solution” which allows you to record in perfect mono (vocals, single instruments) AND simultaneously in various stereo modes or in various surround formats.
Use the center-capsule to ideally balance your sound-stage and give as much focus as you want to the center image – Directly at the recording and/or later in the post production!
Recordings with the Nevaton BPT are perfectly mono-compatible
The Nevaton BPT has an extremely (!) low self-noise of only 4 – 7dBA (depending on the selected directional characteristic)
Select various patterns (switchable on the microphone body): Omni, cardioid, fig-8 for the center-capsule and cardioid or fig-8 for side capsules.
Any desired variation of directional patterns can be additionally created in conjunction with the mixing desk.
The microphone’s directional pattern can be altered both during the recording and in post-production. Every aspect of the image width and pattern control is adjustable and can be precisely refined during or before the mixdown process.
In figure-8 mode, the pronounced directional characteristic allows for positioning the BPT (backed by a small acoustic microphone panel) very far from the sound source, while still capturing a sound image with remarkable clarity and spatial representation. The microphone has a very special design feature, which allows to capture low frequencies more accurate than other fig-8 microphones! Largely decorrelated signals (especially at low frequencies) of the crossed figure-eight patterns also lead to a great spatial representation.
Consequently, the BPT is perfectly suited for capturing entire sound events using just one microphone in a “one-point” recording setup, ensuring recordings of extremely high quality and depth.
The BPT-recording system
In addition to the most basic approach of using only one BPT microphone together with an acoustic microphone-panel, incorporating a pair of additional omnidirectional outriggers will provide distinct control over the desired level of decorrelated stereo information, perfectly complementing the precise spatial sound image captured by the BPT.
Graphic modified taken from “Dickreiter”
The capsules are internally shock-mounted to avoid that any vibrations would reach the capsules.
The matte-grey surface finish offers a ‘non-intrusive’ appearance, which can be a crucial factor in gaining artist or producer approval for live recordings.
The NEVATON BPT is delivered in a fine wooden box, together with a shockmount and 40 cm long break-out cable. It is manufactured in limited quantities.
LINKS:
NEVATON BPT – Technical Data
| Technical Specifications | |
|---|---|
| Capsule diameter | 33 mm |
| Directional pattern – capsule 1+2 (side) | figure-8, cardioid |
| Directional pattern – capsule 3 (center) | cardioid, figure-8, omni |
| Frequency range | 20 – 20000 Hz |
| Free Field Sensitivity at 1000 Hz and 1000 Ω | 20 mV/Pa |
| Self-noise (Equivalent SPL DIN/IEC 651) | 4 dBA (cardioid, omni) 7 dBA (fig-eight) |
| Max. Sound Pressure Level [for THD 0.5%] | 142 dB |
| Dynamic range | 135 dB |
| Nominal Impedance | 50 Ω |
| Recommended Load Impedance | 3000 Ω |
| Current Consumption | 7 mA (each channel) |
| Phantom Power | 48 V +/- 4V |
| Diameter | head: 48mm, body: 48mm |
| Length | 245 mm |
| Weight | 820 g |
| Relative humidity | 80% (at +20°C) |
| Connector Type | XLR, 7-pin (male connector built in the microphone) |
| Pin assignment | pin1: ground, pin2+3: center capsule (+/-), pin4+5: right capsule (+/-), pin6+7: left capsule (+/-) |
Accessories
# Shockmount (included)
# 7-pin to 3 XLR breakout cable (included)
# 15 meter long cable (optional)
# Alu transport case (optional)
