Ambient ASF-1 MKII

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Ambient ASF-1 MKII

Ambient

ASF-1 MKII

4.6 Expert Rating

Product Info

Article Number: 610813
Brand: Ambient
Model: ASF-1 MKII
Price: $1,934.90

* Prices may vary. Check retailer for current pricing and availability.

The ASF-1 MKII is a seriously impressive piece of kit for professional marine biologists, documentary filmmakers, or anyone needing high-fidelity underwater audio. Its robust build and extended frequency response give you a level of clarity and detail you just won't find in cheaper hydrophones, making it ideal for capturing the subtle nuances of aquatic life.

Product Description

  • Ambient ASF-1 MKII
  • Underwater Microphone
  • Hydrophone
  • For high-quality underwater audio recordings
  • Polar pattern: Omnidirectional
  • Frequency range: 7 - 90
  • 000 Hz
  • Sensitivity: -192 dB re 1V/µPa
  • Total harmonic distortion: 0.1% (10 - 40
  • 000 Hz)
  • Built-in low-noise preamplifier with +12 dB amplification
  • Maximum depth: 100 m
  • Operating temperature: -5 °C to +50 °C
  • Specially developed AHS underwater plug
  • Housing material: Aluminium bronze
  • Encapsulating material: PUR
  • Dimensions (L x D): 180 x 25 mm
  • Weight (without cable): 270 g
  • Includes 10 m underwater cable

*Note:* Requires 48 V phantom power.

PROS
  • • Aluminum bronze housing provides excellent corrosion resistance in saltwater.
  • • AHS plug ensures a reliable, low-noise underwater connection.
  • • Extended frequency response captures subtle underwater details, up to 90kHz.
  • • Built-in preamp boosts signal, reducing noise in challenging environments.
CONS
  • • Significant weight makes long deployments or mounting tricky.
  • • Premium-priced, limiting accessibility for hobbyist underwater recording.
  • • Omnidirectional pattern picks up all ambient noise, requires careful placement.

Product Video

Key Features

Mic Type Hydrophone
Polar Pattern Omnidirectional
Frequency Range 7 - 90,000 Hz
Connector AHS Underwater Plug
Weight 270 g

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Frequently Asked Questions

The AHS plug is specifically designed for low-noise performance and a secure, watertight seal, surpassing many generic connectors often used in underwater applications.
While the ASF-1 MKII is low-noise, a reef environment will still produce significant noise; expect a floor around -120dB to -130dB, dependent on current and marine life activity.
Yes, the aluminum bronze is specifically chosen for its excellent resistance to corrosion in both saltwater and brackish conditions, but regular inspection is still recommended.

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