bhi Dual In-Line dual-channel DSP
Dual-channel DSP noise cancelling module 8–40 dB, mono/stereo inputs, 7 W speaker, line and headphone outputs
The bhi Dual In-Line is a dual-channel amplified DSP noise cancelling module: it accepts two mono inputs or one stereo input and offers three outputs, for speaker, line and headphones.
Product description
bhi DSP processing distinguishes speech from noise and interference, making the voice clear and intelligible, especially on weak signals. The filter is switched on with a switch and adjusted over 8 positions; another switch separates or combines the input signals.
There is an input level control with LED and separate controls for the line level and the speaker output. Amplified speakers go to the Line Out stereo socket, a passive speaker to the amplified mono Audio Out output; you can listen on headphones and speaker at the same time, useful for DX, club stations, special events and field days.
It works with all radios, receivers and SDRs, at both speaker level and line level. It is a direct replacement for the discontinued bhi NEIM1031MKII. For more power and adjustment to your own hearing, a bhi EQ20 equaliser can be added, connected to the Line Out.
Key features
Two mono or one stereo.
Speaker, line and headphones.
Noise reduction in 8 levels.
Power supply
Requires a 10–16 V DC power supply (for example the bhi PSU12-2A-WW), not included.
Technical specifications
| Noise reduction | 8–40 dB, 8 levels |
| Tone reduction | up to 65 dB |
| Audio input | 3.5 mm stereo jack (channel 1 tip, channel 2 ring) · 8 Ω at 2 W · 10 kΩ at 600 mVpp |
| Speaker output | 3.5 mm mono jack, more than 6 W into 8 Ω |
| Headphone output | 3.5 mm stereo jack, 0.5 + 0.5 W into 8 Ω |
| Line output | 3.5 mm stereo jack, 600 Ω, up to 0 dBV |
| Indicators | Power, DSP on, channel 1 and 2 overload |
| Power supply | 10–16 V DC (800 mA nominal, 2.5 A max), 2.1 mm centre-positive jack |
| Case | Black impact-resistant ABS |
| Dimensions | 165 × 78 × 50 mm |
| Weight | 0.38 kg |
Package contents
- Dual In-Line module
- ALD-007 stereo cable
- ALD-001 3.5 mm mono cable
- Fused DC power cable
- Rubber feet
- User manual
HamRadioShop | DSP audio
