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Installation Notes Kraken BB80 micro-bass 

 

Overview

 – BB80 

BB80 is a small bass speaker designed to accurately reproduce frequencies below 200 Hz with minimal 
vibration and a smooth roll-off at the lowest frequencies. 

It is NOT a sub bass in the accepted sense. 

The 

‘Active 3’ crossover amplifier has been designed specifically to complement the BB80 and should be 
utilised on all installations where possible (see ‘Active 3’ installation notes). Where the ‘Active 3’ is not 
used some other means of limiting the frequencies fed to the BB80 must be included. 

Installation Kit  

Along with the BB80 a comprehensive installation kit is provided (see below). Please check it contains all 
the items required for any specific installation. 

1 x Mounting bracket  
2 x M6 Nut and spring washer 
2 x Mounting bolt 
2 x Wall plugs 
1 x Safety bond (attached to BB80)  

 

Location & Mounting  

A single BB80 will cover around 50 square metres. As a general rule the location within any space is not 
critical as human hearing does not perceive directional information at lower frequencies. In addition to the 
2 keyhole slots the bracket can be mounted on a BS5733 square socket box. As the type and quality of 
these boxes is variable, the use of the key slots in addition is recommended. In all installations the safety 
bond must be utilised. Use an approved fixing (not Supplied). Where multiple units are to be installed 
these can either be distributed around the area to be covered or arrayed using the spacing below. Care 
should be taken to ensure the correct impedance matching. The characteristic impedance of the BB80 is 4 
ohms.  

 

 

 

 

 

 

 

 

Summary of Contents for Active 3

Page 1: ...USER GUIDE ADVANCED LOUDSPEAKERS Models BB80 FP1 Active 3 This edition published 7 2 12 Kraken Acoustics Ltd 2012 ...

Page 2: ...y response 180 17500 Hz SPL 86 dB at 1W 1m at 1KHz Length 300 mm Width 200 mm Depth 30 mm Weight 0 5 Kg Loudspeaker is magnetically shielded If installing FP1 in arrays to raise SPL remember to series parallel connections to maintain impedance 2 x FP1 in series 16Ω at 25W x 2 50W RMS 2 x FP1 in parallel 4Ω at 25W x 2 50W RMS 4 x FP1 in series parallel 8Ω at 25W x 4 100W RMS DO NOT EXCEED THE RMS P...

Page 3: ... between the FP1 speakers usually gives the best result See fig 2 below Fig 2 HiFi installation optimum stereo imaging As the FP1 is a low impedance speaker the rating and length of cable used needs to be considered due to the current needed to produce the SPL that may be required We recommend that a cable with a core size of 1 0mm2 cable be used It is of course vital that the load impedance toget...

Page 4: ... any specific installation 1 x Mounting bracket 2 x M6 Nut and spring washer 2 x Mounting bolt 2 x Wall plugs 1 x Safety bond attached to BB80 Location Mounting A single BB80 will cover around 50 square metres As a general rule the location within any space is not critical as human hearing does not perceive directional information at lower frequencies In addition to the 2 keyhole slots the bracket...

Page 5: ...mend that 1 5mm2 cable be used to minimise losses Correct phasing and power ratings need to be observed in all installations Specification Impedance 4 ohms Power handling 50W RMS Frequency response 35 300Hz SPL 89dB at 1W 1m at 150Hz Recommended crossover frequency 200Hz Length 310mm Diameter 125mm Weight 2 4Kg ...

Page 6: ...eat sink Comprehensive short circuit and temperature protection is designed into the unit Wiring As all low level inputs and outputs are unbalanced the active 3 should be located close to the other installed amplifiers and sources All low level cables must be screened Phoenix type plug in connectors are used throughout to simplify installation Setting up All inputs and outputs have individual gain...

Page 7: ...ss than 0 5 Power Supply Auto sensing 110 240 V ac input output voltage 18v dc IEC C13 mains connector Schematic The information provided is for guidance only and users should satisfy themselves as to the suitability of the product for the intended application Installations and use are outside the control of Kraken Acoustics Ltd and no liability can be accepted for damage or consequential loss cau...

Page 8: ...ions appendix 2 Connection to HiFi installations appendix 3 Connection to Home theatre installations appendix 4 Brackets and stands Mounting Template BB80 microbass stand 75mm hole centres 8mm holes for M6 bolts with plugs Mounting template FP1 wall ceiling bracket 60mm hole centres 6mm holes for 5mm screws with plugs ...

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