BLACK HYDRA BETA 8.70 DSP Eight Channel DSP Amplifier User Manual

Contents hide

1 BLACK HYDRA BETA 8.70 DSP Eight Channel DSP Amplifier

2 Product Usage Instructions

3 INTRODUCTION

4 INSTALLATION

5 CONNECTION TO POWER SOURCE

6 REMOTE ACTIVATION OF THE AMPLIFIER

7 SPEAKERS WIRING DIAGRAMS

8 PC CONNECTION

9 WINDOWS PC SOFTWARE OVERVIEW

10 SPECIFICATIONS

11 MAINTENANCE AND UTILIZATION

12 Documents / Resources

12.1 References

13 Related Posts

BLACK HYDRA BETA 8.70 DSP Eight Channel DSP Amplifier

Product Usage Instructions

Power Connection
Connect the power input to a suitable power source using the provided cables.

Audio Input Setup
Choose the appropriate input source (USB PC, USB Audio, Coaxial Input) based on your device.

Remote Control Functionality
Use the Digital Remote Control (DRC) for convenient operation of the amplifier.

Bluetooth Pairing
Enable Bluetooth on your device and pair it with the amplifier for wireless audio streaming.

Audio Format Selection
Select the desired audio format (PCM, DOLBY DIGITAL, DTS) for optimal sound output.

Frequently Asked Questions (FAQ)

Q: How do I connect my device to the amplifier?
- A: You can connect your device via USB, Coaxial Input, or Bluetooth depending on your preference and device compatibility.

Q: What audio formats are supported by the amplifier?
- A: The amplifier supports PCM 96/24, DOLBY DIGITAL (AC3), and DTS audio formats for high-quality sound reproduction.

INTRODUCTION

First of all, we would like to congratulate you on choosing the BLACK HYDRA car audio ampliﬁer!
On these pages, you will not ﬁnd an absolutely accurate justiﬁcation for the superiority / uniqueness of our audio systems, because music can only be assessed by emotions gained from listening. Black Hydra audio systems will satisfy you by the excellent sound quality rather than with the numbers. It will give you true emotions of the listening to your favorite music, incomparable with the evaluation of «dry» speciﬁcations written on paper in silence.

During building of audio system based on Black Hydra components we recommend that you use only high quality components in each of its links, to achieve the most accurate transmission of music material. Remember the quality of any system is determined by its weakest link.
Technical speciﬁcations of Black Hydra ampliﬁers are equal and correspond to the most of best industry representatives, while at the same time surpassing them in subjective estimations of sound quality.

Perfectly honed circuit solutions with excellent architecture, combined with the use of components of the highest grade, made it possible to make our product unique, capable of transmitting the ﬁnest nuances of the sound of your favorite compositions without distortions and with high details.
The power supplies of all ampliﬁer models are designed with an impressive reserve, which allows achieving maximum output even at the upper limits of the declared power level.

By placing individual parts of the circuit on subboards the lengths of the conductors were reduced and optimized, which completely eliminated interference between channels and as a result improved crosstalk attenuation, making it possible to achieve greater clarity of images in the sound stage.
JUST ENJOY

KIT CONTENTS

INSTALLATION

APPLICATION OF CONNECTORS AND CONTROLS

OUTPUT – signal output, RCA jacks
SPEAKERS OUTPUTS – speakers connection terminals, AB class ampliﬁer

MODE – LED for active preset (green-blinking)
SPEAKERS OUTPUTS – speakers connection terminals, D class ampliﬁer

AMP – ampliﬁer ground selection switch
POWER INPUT – power supply terminals

POWER ON SW – HIGH/ACC – selection of ampliﬁer switch on mode
INPUT – signal input, RCA jacks

HIGH-LEVEL INPUT – high-level signal input
DSP – DSP ground selection switch

USB PC – PC connection interface
REMOTE – input for connection of the DRC remote control
BT – LED for bluetooth operation (blue)
OPTICAL INPUT – signal input, optical
USB AUDIO – signal input, USB audio
COAXIAL INPUT – signal input, coaxial
POWER – LED for operation (blue) / LED for protection (red)

CONNECTION TO POWER SOURCE

Black Hydra car ampliﬁers are designed to operate in 12-volt systems with a permissible voltage of 10-17V. A signiﬁcant voltage deviation from operating limits can lead to incorrect operation of the device or to its complete failure.
We recommend the use power cables made of oxygen-free copper, with properly selected diameter that allows the transmission of an electrical signal with minimal loss. If the distance from the battery to the ampliﬁer exceeds 4m, we recommend using larger diameter cables to prevent loss of sound quality.
Start power supply wiring by connecting the power cable to the negative polarity (minus), grounding it at the nearest point to the ampliﬁer at the car body. Connect the positive power cable directly from the corresponding battery terminal.
To avoid problems in the electrical and electronic systems of your car, the installation and connection of the power supply to the ampliﬁer should be carried out only by qualiﬁed personal! (Fig. 1)

Ampliﬁer has 2 pcs of blade type protection fuse 35 A. In case you need to replace the fuse, use only the same type and value as the original. (Fig. 2)

REMOTE ACTIVATION OF THE AMPLIFIER

The ampliﬁer supports two methods of remote activation:
To select desired turn on method please use power on switch at the ampliﬁer’s side panel.

By high level signal input (HIGH): by connecting the high level output signal of an OEM source to the high level input terminals of the ampliﬁer and setting the POWER ON SW switch to HIGH. In this way the auto turn on function is activated to turn on the ampliﬁer when high level signal is present. By setting the POWER ON SW switch to ACC, this function is disabled. 150 mm / 5.91 inch
By remote input (ACC): by connecting the remote input terminal ACC with a remote out signal coming from an aftermarket head unit that will enable the ampliﬁer turn on and off function.

SIGNAL SOURCES CONNECTION

BLUETOOTH CONNECTION
Ampliﬁer has built in Bluetooth 5.0, module which supports AptXHD high quality sound proﬁle.

To connect your device to ampliﬁer’s Bluetooth module navigate to your device Bluetooth settings and search for Bluetooth device named BETA 8. 70 DSP then pair your device with ampliﬁer’s Bluetooth. After successful pairing BT LED at the ampliﬁer’s side panel will light up blue.

This ampliﬁer supports digital USB-Audio connection to Android OS and Windows PC devices. To connect your ampliﬁer to your device, plug in USB Type-A (2.0/3.0) cable to the USB Type-A port at the ampliﬁer’s side panel then connect it to your device. You will see device named BH DSP AMP in output devices list. Select this device as a default sound output device.

NOTE: THIS AMPLIFIER DOES NOT SUPPORT PLAYBACK FROM EXTERNAL USB FLASH DRIVES AND HDD/SSD DRIVES.

DIGITAL OPTICAL OR ELECTRICAL S-PDIF INPUT

SIGNAL CONNECTION
This ampliﬁer accepts at its input PCM signals up to 96 kHz / 24 bit . Sampling frequency rate. So DOLBY DIGITAL (AC3) multi-channel signals coming from audio/video sources (such as the audio of a DVD video) or DTS cannot be reproduced.
Connect a ﬁber optic cable with a TOSLINK connector to (OPTICAL INPUT) or coaxial cable to a coaxial connector(COAXIAL INPUT).

NOTE: THE OUTPUT OF THE CONNECTED DEVICE NEED TO BE SET IN STEREO MODE FOR THE SIGNAL TO BE REPRODUCED.

How to select the OPTICAL or COAXIAL input

Using the DRC (sold separately), selecting the OPTICAL or COAXIAL input.
Using the Windows PC software.

HIGH-LEVEL SIGNAL INPUT CONNECTION
This ampliﬁer is provided with a 16-pin high-level input connector to which up to a maximum of 8 high-level input channels can be connected. This port allows using the ampliﬁer automatic turn on function, it`s also accepts signals coming from an ampliﬁed source with a voltage level between 6.5 V and 15 V RMS.

The channels CH1, CH2, CH3, Ch4 feature the auto turn on function for automatic turn on/off of the ampliﬁer in case of connection of high-level input signals. This function can be enabled or disabled via the POWER ON SW switch on the ampliﬁer’s side panel.

Example 1. High-level input: 2-way front + rear.

Example 2. High-level input: 2-way front + rear + center + sub.

This ampliﬁer has 6 low-level RCA inputs. This inputs accept signals from a pre-ampliﬁed source, the signal to be applied must have a level between 0.78 V and 6 V RMS. These input channels can be custom-ized in different ways through the use of the Windows PC Software.

CONNECTION OF ADDITIONAL AMPLIFIER
The ampliﬁer has two RCA outputs that can be used to connect second ampliﬁer if you want to use up to 16 ampliﬁed channels in your sound system.

SPEAKERS OUTPUTS
The ampliﬁer is supplied with a 14-pin multifunctional connector to which up to 6 output ampliﬁer’s AB class channels can be connected with RMS power of 70W @ 4Ohm for each channel.

Additionally, ampliﬁer has two D class output channels which can be used in bridged mode with output RMS power of 220W @ 4Ohm or 2x110W @ 2Ohm in per channel connection.

The output channels can be conﬁgured by Windows PC software. Each channel features:

Paramentric EQ with 31 poles;
Crossover with arbitrary frequency steps in the range from 20 to 20 000 Hz and selectable frequency response ﬁlter type (Butterworth, Bessel or Linkwitz-Riley) with slope in the range from 6 to 48 dB/Oct;

Digital time delay correction 0-20mc / 0-679.38cm / 0-269.57inch;
Phase inversion 0, 180°;
Channel level control in the range from +6 to -60dB;

SPEAKERS WIRING DIAGRAMS

Example 1. Speakers outputs: 2-way front + 2-way rear + subwoofer in bridged mode

Example 2. Speakers outputs: 2-way front + broadband rear + subwoofer in bridged mode

Example 3. Speakers outputs: 3-way front + two subwoofers.

Example 4. Speakers outputs: 3-way front + subwoofer in bridged mode.

PC CONNECTION

Use USB Type-B connection cable to connect the ampliﬁer to a Windows PC in order to manage all of its functions using Windows PC software. PC connection port is USB 2.0/3.0 compatible.

Attention!!! You need to download the application for Windows PC to control all ampliﬁer settings.

WINDOWS PC SOFTWARE OVERVIEW

The application is compatible with all versions of Windows 10 and Windows 11, for user convenience, the application does not require installation, you need only to unzip the executable ﬁle of the application to any folder of your choice, then launch the application by double-clicking on its icon in Windows explorer.

Connection to the ampliﬁer
Signal source selection
Load/Save of ampliﬁer settings

Basic software setup
Equalizer setup
Filtering setup

Output channel grouping
Switching between setup modes
Digital time delay correction settings setup mode

Signal routing setup

CONNECTION TO THE AMPLIFIER
After launching the application, you will see the main screen, in the upper left corner of the screen, there is a button for pairing with the ampliﬁer, the gray color of the button means that the ampliﬁer is disconnected, green color means a successful connection. Click on the button connect to connect to the ampliﬁer.

SIGNAL SOURCE SELECTION

LOAD/SAVE OF AMPLIFIER SETTINGS
To save your ampliﬁer settings for later use, click the button in the upper right corner of the screen.

In the pop-up menu, click Save and select the memory cell number where you want to save the ampliﬁer set- settings.
You can also export the settings to a ﬁle to save it on your PC. To do this, click the export button, enter the ﬁle name and select the save location in Windows explorer, then conﬁrm your choice by clicking the save button.

BASIC SOFTWARE SETUP

For basic software setup, click on thein the upper right corner of the main application screen.

In this menu you can select the system language, view the software version, the ampliﬁer ﬁrmware version, and also return to the factory default settings of the application. To perform the selected action, click on the corresponding menu item.

EQUALIZER SETUP
The ampliﬁer has the ability to conﬁgure a 31-band parametric equalizer with an arbitrary frequency st eps for every single output channel.

To set up the equalizer, select the output channel for which the equalizer will be set up by clicking on the corresponding channel selection button.

You can also set up the equalizer for several channels by combining them into groups. To group, mark mark the channels you need by clicking on the checkbox next next to the channel name.

IMPORTANT! WHEN GROUPING CHANNELS, ALL SETTINGS (FILTER AND EQUALIZER SETTINGS)

FOR THE SELECTED CHANNELS ARE MERGED.
Next, select the frequency, level, and Q-factor for the selected equalizer frequency. All equalizer settings are applied in real time.

There are several ways to setup the required equalizer settings, all of them are marked in the picture above, use the most convenient setup method for you.

The equalizer supports switching to a ﬁxed (parametric) mode in which all 31 equalizer adjustment frequencies are ﬁxed and pre-selected by the manufacturer. To turn on the ﬁxed equalizer mode, press the PEQ button .1
To temporarily disable the equalizer without resetting its settings, press the Eq Pass button . To reset the equalizer settings, press the RESET button 3 , then in the dialog menu select the desi- red reset option, all equalizer settings for all cannels or settings for only current channel, you can also cancel the reset process by pressing the cancel button.

FILTERING SETUP
The ampliﬁer has the ability to apply per channel ﬁltering with an arbitrary frequency steps in the range from 20 to 20 000 Hz and slope from 6 to 48 dB/Oct for each of the 10 output channels.

To set up ﬁltering, select the output channel for which the ﬁlters will be set up by clicking on the corresponding channel selection button. You can also set up ﬁlters for several channels by combining them into groups. To group, mark the channels you need by clicking on the checkbox next to the channel name.

IMPORTANT! WHEN GROUPING CHANNELS, ALL SETTINGS (FILTER AND EQUALIZER SETTINGS)

FOR THE SELECTED CHANNELS ARE MERGED.

Next, select the frequency, type of the frequency response ﬁlter, slope and Q-factor for the selected operating frequency of HPF and LPF ﬁlters.

All crossover settings are applied in real time and are displayed on the frequency response graph.

There are several ways to setup the required ﬁlter settings, all of them are marked in the picture above, use the most convenient setup method for you.

To temporarily disable the selected ﬁlter without resetting its settings, click the BYPASS button next to the ﬁlter name

OUTPUT CHANNEL GROUPING FOR EASE OF SETUP

To group, mark the output channels you need by clicking on the checkbox next to the channel name. It is also possible to temporarily mute the current channel or all other channels

BLACK-HYDRA-BETA-8-70-DSP-Eight-Channel-DSP-Amplifier-image (38)

except the current one by clicking on the corresponding icons next to the channel name.

IMPORTANT! WHEN GROUPING CHANNELS, ALL SETTINGS (FILTER AND EQUALIZER SETTINGS)

FOR THE SELECTED CHANNELS ARE MERGED.
For ease of setup when using output channels in stereo mode, they can be automatically paired by pressing the

button

SWITCHING BETWEEN SETUP MODES
To select the setup mode, use the buttons at the bottom of the main application screen; they allow you to switch from equalizer and ﬁltering settings to time delays settings and signal routing settings.

DIGITAL TIME DELAY CORRECTION SETTINGS SETUP MODE

If you need to reverse the signal phase from 0° to 180° on the selected channel, use the PHASE button.

To set up time delays, select the desired output channel and required measurement units in which time delay values will be entered, then enter desired time delay value.
It is also possible to temporarily mute the current channel or all other channels except the current one by clicking on the corresponding icons next to the channel name
here are several ways to enter the required values for the time delay settings, all of them are marked in the picture above, use the most convenient setup method for you.

The ampliﬁer supports time delay adjustment in the following unit ranges: 0-20ms / 0-679.38cm / 0-269.57inch.

SIGNAL ROUTING SETUP
If there is a signal divided into separate channels at the ampliﬁer input, it can be combined or transmitted without conversion to the desired ampliﬁer channel using the routing table. The routing table supports signal level adjustment for each channel in the range from 0 to 100%.

To conﬁgure signal routing, use the routing table, where all possible signal inputs are located horirizontally, and all possible signal outputs are located vertically.

To select the signal level from the input you need to the output you have selected, ﬁnd its value in the table and click on the corresponding value, then adjust the signal level using the slider located to the left of the routing table or enter the desired value directly from PC keyboard.

SPECIFICATIONS

SPECIFICATIONS	BETA 8.70 DSP
Class	AB+D
Number of Channels	8
Power RMS, 4 Ohm	6 х 70 W + 2 х 90 W
Power RMS, 2 Ohm	6 х 80 W + 2 х 110 W
Power RMS, 4 Ohm (bridged mode)	1 х 220 W
Inputs	6 х RCA
	8 х HIGH-LEVEL
	1 х OPTICAL
	1 х COAXIAL
	1 х ACC
	1 х USB AUDIO
	1 х USB PC
Outputs	8 х SPEAKER OUTPUT
	2 х RCA
	1 х REM OUT
Frequency response	20 – 20 000 Hz
THD	AB – <0.015 (1 kHz) / D – <0.05 (1 kHz)
Signal to noise ratio	≥100 dB
Input impedance	10 kOhm
Input sensitivity (Low level inputs)	0,78 – 6 V
Input sensitivity (High level inputs)	6,5 – 15 V
Crossover	LPF: 20 – 20 000 Hz at 6 – 48 dB/Oct HPF: 20 – 20 000 Hz at 6 – 48 dB/Oct
Fuses	2 х 35 А
Audio DSP	ADAU1452
DAC	24 bit 96 kHz
ADC	24 bit 96 kHz
Working voltage	10-17 V
Size (LхWхH), mm / inch	312 х 180 х 55 / 12.28 х 7.1 х 2.17

MAINTENANCE AND UTILIZATION

WARRANTY PERIOD, AFTER-SALES SERVICE AND SERVICE LIFE INFORMATION

Each BLACK HYDRA product is warranted to be free from defects in materials and workmanship under normal use and service.
The warranty period for the product is 12 (twelve) months from the date on which the product is transferred to the consumer (this date shall be deemed to be the date on which the consumer starts using the product).
During the warranty period, defective parts will be repaired or replaced at the discretion of the manufacturer provided that there are grounds for doing so under the laws of the consumer’s country. The defective product must be returned to the dealer from whom it was purchased together with the duly ﬁlled out warranty certiﬁcate, complete, with original packaging.

Our company shall not be liable for any damage caused by transportation. Our company shall not be liable for any expenses or lost proﬁts arising out of or in connection with the use or inability to use the product or any other incidental or indirect costs, expenses, or damages incurred by the customer. The warranty is valid in accordance with the laws currently in force. For more information, please visit our company website and refer to the warranty card.
The manufacturer reserves the right to change the design and speciﬁcation of the product without prior notice.
The service life of the product is 12 (twelve) months from the date on which the product is transferred to the consumer (this date shall be deemed to be the date on which the consumer starts using the product).
The product or any part (component) of the product must not be used in any way (including, but not limited to use for intended or any other purpose, transportation, storage, modiﬁcation/alteration/improvement/upgrade) after the expiry of the service life.

INFORMATION ON DISPOSAL OF THE ELECTRICAL AND ELECTRONIC EQUIPMENT (FOR THE EUROPEAN COUNTRIES WITH SEPARATE WASTE COLLECTION)

Items marked “crisscrossed wheeled bin” are not allowed to be disposed of together with usual household waste. These electrical and electronic products should be disposed of in special reception centers, equipped for recycling such products and components. For information about the location of the nearest disposal / recycling spot and the rules of delivery of waste, please contact your local municipal ofﬁce. Recycling and proper disposal helps to protect the environment and prevent harmful effects on health.

Manufacturer: Ningbo Basshead I&E Trading Co., Ltd Made in China

https://alphard.audio

Documents / Resources

BLACK HYDRA BETA 8.70 DSP Eight Channel DSP Amplifier [pdf] User Manual
BETA 8.70 DSP Eight Channel DSP Amplifier, BETA 8.70, DSP Eight Channel DSP Amplifier, Eight Channel DSP Amplifier, Channel DSP Amplifier, DSP Amplifier, Amplifier

References

User Manual