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Harmony HB 48 II 4A
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Harmony · Blue Note Series

HB 48 II 4A

8-Ch. DSP/4-Ch. Class AB Amp, BT & Player

$349.99MSRP · USD

The HB 48 II 4A is an 8-channel DSP combined with an integrated 4-channel Class AB amplifier, delivering 4 × 23 W RMS at 4 Ω and 4 × 35 W RMS at 2 Ω (4 × 70 W Max). It features 31-band equalization, HD Bluetooth streaming, an integrated Music Player, OTG input, and full PC and mobile control via a dedicated app. The optional HB DSP II-R remote provides dashboard-level control of volume, presets, source selection, and Music Player navigation.

Key Features

  • 8-channel DSP with integrated 4-Ch Class AB amplifier
  • 31-band EQ per output channel with I/O Mixing Matrix
  • RMS: 4 × 23 W (4 Ω) / 4 × 35 W (2 Ω); 4 × 70 W Max
  • HD Bluetooth streaming and integrated Music Player (App)
  • 2-Ch RCA inputs, 4-Ch high-level inputs, 8-Ch RCA outputs
  • PC and mobile APP DSP control; optional remote for dashboard use

Power Output

RMS Power (4 Ω)4 × 23 W
RMS Power (2 Ω)4 × 35 W
Max Power4 × 70 W
Amplifier ClassClass AB

DSP / Processing

DSP Channels8
EQ Bands31-Bands per output channel
I/O Mixing MatrixYes
Crossover TypesButterworth, Bessel, Linkwitz
Crossover Slopes6 – 48 dB/Oct.
S/N Ratio> 100 dB
THD< 0.05%
Frequency Response20 Hz – 20 kHz
Supply Voltage12 V – 14.4 V

Connectivity

RCA Inputs2-Channels
High-Level Inputs4-Channels
RCA Outputs8-Channels
Input SourcesAux, BT, High-Level, USB, OTG
BluetoothYes (HD Streaming)
Music PlayerYes (App)
DSP ControlPC and Mobile APP

Dimensions

Unit Dimensions160 × 126 × 45.5 mm (L × W × H)

Product Details

BrandHarmony
SeriesBlue Note
ModelHB 48 II 4A
SKUHB48II4A
EAN8033373006579
Inquire to Order More Blue Note

Genuine product · Authorized U.S. dealer · Drop-shipped direct

Documentation

Product Information at Zapco.com