ExaktBox Sub

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Linn-Exaktbox-Sub-3Q-Web-Res.jpg


Product info

  • Product Name: ExaktBox Sub


  • Date of Introduction: September 2015
  • Type: Exakt Digital Crossover with DAC designed for use with subwoofers
Configurable for one or two subwoofers
Software upgradable to support more and more subwoofers
Connects to internal subwoofer power amplifiers
  • Can only be used with Exakt-Link output products AND Exakt speakers/Exaktbox

Support

Linn Support Site


Installation


As this is an Exaktbox the initial setup must be performed with a Local Area Network that has Internet access. Otherwise Konfig cannot set the speaker channel, Speaker profile and Space Optimisation of these products

Latest software

Latest software releases

Open source software

Manuals

Manage Systems setup manual
Space Optimisation (Advanced)
Surround Sound with Exakt systems
Safety Information
Warranty Terms and Conditions
Third Party Software Copyright


Configuration

Konfig

Using Konfig to configure Exaktbox-Sub


1. Select EXAKT and CLICK TO CONFIGURE the Exaktbox Sub

2. This will list the various Sub-woofers supported. Each Sub-woofer is listed four times

1 x Bass Reinforcement FIlter (Mono/Left/Right)
To configure for single channel Subwoofer. This will extract the Bass audio from the front left and right channels (Mono) or seperate feeds from the front left and front right channels.. This is primarily for use in Stereo music playback. It does NOT use the LFE channel in Surround Sound playback.
1 x Surround Filter (LFE)
To configure for single channel LFE playback. This ONLY works with Surround Sound media. There is NO output on Stereo playback
2 x Bass Reinforcement FIlter (Mono/Left/Right)
For use with two Sub-woofers. This will extract the Bass audio from the front left and right channels (Mono) or seperate feeds from the front left and front right channels.. This is primarily for use in Stereo music playback. It does NOT use the LFE channel in Surround Sound playback.
2 x Surround Filter (LFE)
For use with two Sub-woofers for LFE playback This ONLY works with Surround Sound media. There is NO output on Stereo playback

Note: You CANNOT have both LFE and Sub-woofers in the same system. It is either Sub-Woofer or LFE, never both.

Manage Systems

Using Manage Systems to configure Exaktbox-Sub


1. In the GENERAL tab select the :

DEVICES
EXAKTBOX            Exaktbox Sub >


2. Select SPEAKERS CHANGE CONFIGURATION

3 This will open a entry box with three configurations

CHANNEL
MONO:
To configure for single channel Subwoofer. This will extract the Bass audio from the front left and right channels. This is primarily for use in Stereo music playback. It does NOT use the LFE channel in Surround Sound playback.
LFE SUBWOOFER
To configure for single channel LFE playback. This ONLY works with Surround Sound media. There is NO output on Stereo playback
LEFT SUBWOOFER + RIGHT SUBWOOFER
Use this option if you have two subwoofers connected use this setting
MANUFACTURER
Declare the Sub-woofer Manfacture. (You cannot have two different Subwoofers configured for the Exaktbox-Sub. They must both be the same make and model)
MODEL:.
Declare the Sub-woofer Model. (You cannot have two different Subwoofers configured for the Exaktbox-Sub. They must both be the same make and model)

Back Panel Connections

Linn-Exaktbox-Sub-rear-Connections.jpg


  1. MAINS INPUT - To connect to the mains electricity supply.
  2. EXAKT LINK - To connect to Exakt compatible devices (Exaktbox, Exakt Speakers, Urika II etc)
  3. ANALOGUE OUTPUTS (XLR,variable level) - To connect to power amplifiers with balanced (XLR) analogue inputs. (300ohm Output impedance)
  4. ANALOGUE OUTPUTS (RCA, variable level) - To connect to power amplifier with unbalanced (RCA) analogue inputs. (300ohm Output impedance)
  5. FALLBACK - To put the device into Fallback mode (used when reprogramming)


Note: Both XLR and RCA outputs are active simulatneously.

EXAKT LINK Connections

Image:Exakt Link.jpg


Example if you are using a Klimaxe DSM/1, Akudoriks and Exaktbox sub:

ExaktSub links.jpg


The Exakt-link cable can supply digital audio for multiple speakers.
Use Konfig > Exakt Setup pages to declare if Channel1 is left or right hand channel, Channel2 is left or right hand channel and the type/quantity of subwoofers to the Exaktbox sub

Check HERE for more information of Exakt link connection



EXAKT LED Status

Image:Akurate ExaktBox

LED

OFF

ON

Flash / Blink

0 Master Port - BLUE No Link Link Discovered Link Activity
0 Master Port - RED No Link No MAINS POWER N/A
1 Audio Clock No Clock Clock locked Clock not locked
2 Slave Port No Link Link Enabled Link Activity
3 Software Status Not Configured Running Hardware Fault













Linn-Exaktbox-Sub-front-Web-Res.jpg


Front panel LED

Blue LED

STATUS


OFF No Power (Exaktbox OFF)
ON Active (Exaktbox ON)
Slow flash Discovering
Fast flash Configuring
slow Dim/BRIGHT flash Fallback mode
fast Dim/BRIGHT flash Reflashing










Installation

Please read the following carefully before installing the unit in your system – your unit may need to be reconfigured by your Linn retailer.

  • The ExaktBox is shipped from Linn with no speaker setup and must be configured with Konfig software.

Operation

The Exaktbox Sub can only be used in conjunction with Exakt speakers or Exaktboxes with two channel audio
You cannot mix the Exaktbox-Sub with the left/right speakers being fed from the Linn DS/DSM analogue sockets. Konfig will allow you to set this up but no audio will fed to the ExaktBox-sub

If you try and connect up the Exaktbox sub with non-Exakt speakers, Konfig will enable Space Optimisation+ and only list the Exakt products, it will NOT list any passive speakers. This means that you cannot setup the room for Space optimisation as only the Exaktbox sub can be setup.

Setup the Exaktbox Sub in the same manner as an Akurate Exaktbox, select the Speaker (or sub-woofer in this case), enter the serial number and which channel to process -left, right or Mono. (If you are using two sub-woofers define one as left and one as right or both as mono. If you are only using one subwoofer select Mono)

Linn Subwoofers

  • Sizmik (1025 & 1045), Majik 126, Akurate 226, Akurate 221, Klimax 345
  • Connection: Connect left, right or both RCA outputs from the Exaktbox sub to the appropriate RCA inputs on the subwoofer.
  • Set the subwoofer parameters as indicated below:

Parameter

Symbol

Value

Internal High Pass Frequency U 1
Internal Low Pass Frequency L 4
Bass Equalisation b 0
Absolute Phase P 0
  • Define the location of the subwoofer in Space Optimisation+
  • Finally you should adjust the output level of the subwoofer to provide the best integration with the main system

Parameter

Symbol

Value

Coarse Gain G User set (range 1 – 7)
Fine Gain f User set (range 0 – 4)



  • Afekt
  • Connection: Connect left, right or both RCA outputs from the Exaktbox sub to the appropriate RCA inputs on the subwoofer.
  • Set the subwoofer parameters as indicated below:

Parameter

Symbol

Value

Phase P 0
Internal Low Pass Frequency L 4
  • Define the location of the subwoofer in Space Optimisation+
  • Finally you should adjust the output level of the subwoofer to provide the best integration with the main system

Parameter

Symbol

Value

Coarse Gain G User set (range 1 – 7)




  • AV5150, Melodik
  • Connection: Connect left, right or both RCA outputs from the Exaktbox sub to the appropriate RCA inputs on the subwoofer.
  • Using the dip switches as described in the Owners manual
set the Subwoofer phase response to NORMAL (in) phase.
set the frequency response to 79 Hz


  • Define the location of the subwoofer in Space Optimisation+
  • Finally you should adjust the output level of the subwoofer, using the dip switch and dial, to provide the best integration with the main system.

REL Acoustics subwoofers

  • Gibraltar G2
  • Connection: Connect an RCA cable from the Exaktbox sub to the LFE input.
  • Set the subwoofer to true phase (0 degrees).


  • Define the location of the subwoofer in Space Optimisation+
  • Finally you should adjust the output level of the subwoofer using the LFE gain control to provide the best integration with the main system.


  • S/5, S/3, S/2
Konfig
For Exakt filter version 3 or below
Connection: Connect an RCA cable from the Exaktbox sub to the low .1/LFE input.
Set the subwoofer to true phase (0 degrees).
Define the location of the subwoofer in Space Optimisation+
Finally you should adjust the output level of the subwoofer using the .1/LFE gain control to provide the best integration with the main system.

For Exakt filter version 4 or above
Connection: Connect left, right or both RCA outputs from the Exaktbox sub to the LOW LEVEL INPUT RCA inputs on the subwoofer.
Set the subwoofer to true phase (0 degrees).
Set the subwoofer crossover dial to maximum (120 Hz)
Define the location of the subwoofer in Space Optimisation+
Finally you should adjust the output level of the subwoofer using the HI/LOW LEVEL gain control to provide the best integration with the main system.



Bowers and Wilkins subwoofers

  • DB1
  • Connection: Connect the Exaktbox sub to the subwoofer using either XLR or RCA cables.
  • Set the subwoofer polarity to true phase (Normal).
  • Turn OFF the room EQ (out), or set the room EQ to flat.
  • Set the input sensitivity to 0dB
  • Turn OFF the low pass filter (none).


  • Define the location of the subwoofer in Space Optimisation+
  • Finally you should adjust the output level of the subwoofer using the LFE gain control to provide the best integration with the main system.


Exakt options

Exakt usage can be found in Klimax_Exakt_System

One of the beneifts of the Exakt system is that you can easily setup and optimise your listening environment. Simply download the latest version of Konfig (version 4.11.7 or higher) and follow the Space_Optimsation+ & Space Optimisation+ (Advanced)



Supported Subwoofers

Examples using one ExaktBox Sub

  • Afekt (1off or 2off)
  • Akurate 226 (1off or 2off)
  • Akurate 221 (1off or 2off)
  • AV5150 (1off or 2off)
  • Klimax 345 (1off or 2off)
  • Majik 126 (1off or 2off)
  • Melodik (1off or 2off)
  • Sizmik (1025 & 1045) (1off or 2off)


Non-Linn Subwoofers

Examples using one ExaktBox Sub

  • B&W DB1
  • REL Gibraltar G2, S2, S3 & S5

More non-Linn subwoofers will be added in the future. In the meantime, if you want to use another type of subwoofer, select the Linn Akurate 221 or 226 and put in serial number 1234567. This will select a generic subwoofer profile with settings that can be used with non-Linn Subwoofers

Trouble shooting

Check Exakt trouble shooting

For further assistance, try our customer support pages

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