bhi ParaPro EQ20-DSP DSP and parametric EQ
2 × 10 W audio unit with up to 40 dB DSP noise cancelling and parametric equalisation
The bhi ParaPro EQ20-DSP is a 20 W (10 W per channel) audio unit with parametric equalisation and bhi DSP noise cancelling, to tailor the sound to your hearing and listening conditions.
Product description
You can connect one or two mono inputs to the CH1 and CH2 sockets, or a stereo signal from an SDR, shortwave receiver or MP3 player via the 3.5 mm stereo socket. The Source Select button on the front selects the source.
Passive 4 or 8 Ω speakers connect to the left and right outputs with 4 mm banana plugs or with the supplied 3.5 mm phono-to-mono adapters. There is also a 3.5 mm stereo headphone output.
The two parametric equalisation channels, Bass (100 Hz–1 kHz) and Treble (1–10 kHz), each adjust ±10 dB at the chosen frequency. Unlike ordinary tone controls, the parametric equaliser lets you act exactly on the desired frequency: a great help for those with hearing problems.
The bhi DSP algorithm distinguishes speech from noise across the whole audio band; the filter control ranges from off (DSP bypassed) to 40 dB of cancellation.
Key features
Class D amplifier, no heatsinks.
Adjustable in real time.
Ideal for those with hearing problems.
Note
For use with an amplified speaker or an external amplifier stage, the bhi LLC1 accessory is required. The EQ20B-DSP version adds Bluetooth input.
Technical specifications
| Audio power | 10 W per channel, class D amplifier |
| Noise reduction | up to 40 dB, bhi DSP |
| Equalisation | Parametric: Bass 100 Hz–1 kHz, Treble 1–10 kHz, ±10 dB |
| Latency | 38 ms |
| Inputs | 2 × mono 3.5 mm or 1 × stereo 3.5 mm |
| Outputs | Speakers 4/8 Ω (4 mm banana or RCA) · stereo headphones 3.5 mm (class AB) |
| Power supply | 12 V DC, 2 A |
| Enclosure | ABS |
| Dimensions | 145 × 75 × 100 mm (W × H × D) |
Package contents
- EQ20-DSP unit
- 3.5 mm phono-to-mono adapters
- Accessory kit
- User manual
HamRadioShop | DSP audio
