Usermanual - piratelogic audio
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1. 59229 e e Ciro 114 Bete x Fig 5 C37 and C41 forming the second Linkwitz Riley high pass Filter This Filter determines both the mid cut off pole aswell as the high start pole And like with the first LR filter it does so by substraction Fig 5 C29 and R52 2 order slope correction R52 is not visible here as it is situated at the bottom of the PCB Using the stock xover frequencies these don t need to be Finetuned However in those rare cases where extreme xover frequencies are used please refer to the Design Wizard chapter for finetuning information The entire filter limiter and correction logic receives power from a discrete build stabilizer providing stabilized 20V rails by means of T17 and T19 The choice was made not to use integrated pin regulators because of their disability to handle higher VDD and VSS rails Next to entering the filter itself the input signal is also routed to the input of IC1b where it is amplified rectified and fed to the as a Schmidt trigger configured IC1a driving T which allows the main supply to be switched via a mains AC http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 31 Page 11 of 22 0610 power relay todo additional APUS info The logic around 13 4 and 5 acts as a watchdog to keep the drivers from being fed with D2. d 55 2 78 C21 eee c39 R62 06 D9 0 010 R78 E 1 Iy LJ LJ 12 16502 5 112 45 C48 71 113 14 T2 1 1 J c8 4 j JL edono Fig 8 2013 01 copper side oo 3 rei Oris ee http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 45 Page 15 of 22 Off board connections AY TEL up TCE un BORE 2255 5 0 0 Sees 0 0 0 0 0 j B AY MFB AMPLIFIER AFB BIRA TEL aGIC Ya n FB BIRA ATEL cM HoF ey 25526 PETENS E ere co 0 0 ipe 0 0 010 0 MFB input ELECTRONIC AAPIRATELOGIC efte bod NO 2221953 Lik GE mm Y AFB BIRA TEL aGIC Ya oe ce E BIRA TEL I ET 2 ey sce emer DCN Squaker output http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 47 Page 16 of 22
3. 9 e S UO 10 vifo p faa VN 11 10 Low note Bridge Single ended amplifier 13 POWO 14 The printed CU UN DOSE 15 inr TONNO TORS 16 S 18 18 Calculation MOO ee mu MEM I 18 Board messe enc en ern nee ES 19 eub MUN neste eee erecta 20 21 nner ET 22 E E 22 FOS OM SIV NE Ul 22 22 UN Q Cc de 22 ju 22 http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 31 Page 2 of 22 PIRATELOGIC Introduction Thank you for purchasing the 2013 01 amplifier module Using it in conjunction with
4. Le ce A OIW TH 07 no MOJ Page 8 of 22 31 19 nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 IC mfb piratelo htt Description PIRATELOGIC 7 S The input signal arrives at C10 1uF from where its level may be adjusted using P1 From P1 its fed to a 12dB high pass subsonic filter based around T7 T8 and C5 and CT Subsonic Filter 201 3 04 81 AMPLIFIER 21 MFB PIRATELOGIC N pour coco go D TE ure ime ce 965 Limiter Fig 2 the subsonic filter capacitors C5 amp CL Please take into consideration that reproducing sub low frequencies requires considerably amounts of energy to be send to the low note driver When determining the lower pole please observe the LM3886 SOAR ratings Please refer to the Design Wizards chapter for further information on how to fine tune this filter Leaving the subsonic filter the signal enters a VCA based around T9 8 T10 which is controlled by the DC level at C20 which is controlled using rectified portions of the amplifier outputs via R22 23 and 24 00000 80000 9000007200000 O00000 000000 000000 000000 iP 0 00 iter o oo 0 0 O00000 0
5. n n T AE oH 46 o A sie 0 0 4 26 2013 01 81 JHAY MFB AMPLIFIER MF B PIRATELGGIC NL 0 04 55 878 9 a 8 RO Control led connection 2 061 ELECTRONIC He gon mue 5 9 eco 93 977 o1 or z Mains relay Fig 10 The 2013 01 connections As with all amplifiers make sure to use appropriate wiring to ensure safety and trouble free operation Please note the 2013 01 does not include onboard fuses please make sure your powersupply has To avoid groundloops only connect the Supply rails GND with the common ground Als on the need to allow adjustment s to happen from outside the enclosure one may choose to move the potentiometers from the components to the copper side of the board http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 49 Page 17 of 22 Design Wizards 0610 The 2013 01 module is accompanied with an online assembly 8 calcuation wizard to use this wizard you will need an internet connection The wizard has been tested with Chrome Safari and Firefox and may be found at the following adress http wizards piratelogic nl The wizard features 2 operation modes assembly and calculation On startup it defaults to assembly mode Assembly mode By using your keyboard up amp down arrow keys you may navigate throu
6. speakers market segment was born Boom boxes Most active speaker setups are direct descendants of cheap plastic PC speakers which suffice in teenager setups where they are being used in conjunction with low quality MP3 audio Most of them have been sized down to the small and sexy smart phone form factor and don t excel in bass reproduction There are of course some exceptions to the rule but most just sound awfully boomy Piratelogic We believe the time for MFB is now the technology behind motional feedback allows small form factors to be combined with astonishing bass reproduction Our business goal is to bring mfb production back to life starting with providing hifi diy enthusiasts with a high quality 2013 version of the original Philips 22AH587 MFB electronics The first step was taken earlier this year with the 2012 01 02 modules this document describes its successor the integrated 2013 01 3 way motional feedback module Discussion Forum All Piratelogic modules are discussed in the Piratlogic discussion forum to visit this forum please navigate to http Forum piratelogic nl Please note that in order you to become a member of this forum you MUST send email to register piratelogic nl with a small introduction who you are and why you like to become a member This is only to avoid spammers from polluting our forum If you are for real access will be granted within 2 business days http mfb piratelogic nl data doc
7. AES O O oN o3 or GE P5 low note amplifier level Fig 9 The 2013 01 potentiometers Depending on the need to allow adjustment s to happen from _ outside the enclosure the potentiometers may be moved from the components to the copper side of the board The 2013 01 has been developed for use with stock Philips MFB woofers and has been confirmed to work properlu in http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 31 Page 6 of 22 conjunction with all existing models i e the AD7067 AD8067 AD10100 and AD12100 mfb woofers Because MFB woofers are no longer manufactured by Philips or any other manufacturer we have been forced to do some research of our own Might you while reading this be aware of any existing mfb woofer manufactures then please let us know We have successfully paired an 01 02 accelerometer from Measurement Specialities http mfb piratelogic ni data docs ach01 pdf with the Skytronic 902 208 PP woofer a typical China made low cost polypropylene woofer The ACHO1 02 mounted in a 15 PA chassis An expiremental acceleration sensor using an ordinary piezo buzzer element http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 31 7 of 22 mfb piratelogic nl data imaqges 2013 01 schema j htt Schematic Onli
8. RATELOGIC CTRUHILCS m 1 Usermanual Module 2013 01 integrated 3 way motional Feedback amplifier Leeaceae ee ee ee ee ee a M 5 EEr EEO ERGE 21276216 piratelogic audio amsterdam holland http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 31 Page 1 of 22 9 PIRATELOGIC Contents uo X X B FSV VS __6___ __ ______ 3 A EE 3 iu X 4 4 BOOM DOO eer S E E 4 Pra cs e E ee ere 4 IM 4 A A M 5 ______ 5 5 GB EEE 6 Accelerometer equipped woofers c esti deti Ihi ieu eee eee 7 sena 8 Vua HUs 9 5 50 1 UN 9 ini
9. The 2013 01 is the successor to the 2012 01 02 which was based on the same schematics but used through hole components as such needed double the real estate of the 2012 pcb s Kit versions The 2013 01 comes in 4 flavours depending on your budget and skill set e Bare PCB without any components DO NOT ATTEMPT TO BUILD THIS MODULE UNLESS YOU ARE SEASONED AMPLIFIER BUILDER WITH 0805 SMD SOLDERING EXPERIENCE SEE BEFORE YOU START AT THE END OF THIS DOCUMENT e with pre mounted 0805 1206 smd capacitors and resistors to the copper side module completely build and tested module completely build and tested and mounted as a plate amp complete with toroid heat sink and XLR inputs Pricing 2013 01 pricing details are available online please visit our forum at http forum piratelogic nl for more info http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 31 Page 5 of 22 Level adjustments 3013 01 01 3uav ra AMPLIFIER c39 862 06 o 5 78 CHELO T T 39 2 2 226 29 a RRS e 0 0 3 Tol SO ears 4 P2 mid note amplifier level Accelerometer equipped woofers 061 ELECTROWICS gt i Hg LOIS dane gt 6 0 E38 OO oxy 5 2 Ey OOE
10. di iO iO 2990 09000 The result at the base of T18 is low pass version of the signal Next the signal is summed with the MFB correction signal which enters the module at the base of T13 The RC combination R89 C61 in the nfb loop of T18 compensates the 2 order phase response allowing for a true 12dB oct low pass slope to be used Fig 4 C61 and R89 2 order slope correction R89 is not visible here as it is situated at the bottom Using the stock xover frequencies these dont need to be finetuned However in those rare cases where extreme xover frequencies are used please refer to the Design Wizard chapter for Finetuning information gt 0 0 OH O 459 09 ox CIES http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 31 Page 10 of 22 Second High Pass 0610 The signal leaving the first path then enters a second LR high pass filter based around T12 C37 and C41 which similar as the low section is split into a two way path The first path is routed directly to the high note amplifier via C33 The second path is summed with a phase inverted output signal of the First LR high pass via R55 and R54 resulting ina bandpass mid signal at the base of T11 E M U T a U U y A T Prr n in 2013 01 93 MFB AMPLIFIE B PIRATELOGIC NL TT Pup T xai ce ET
11. 9 9 0 o 0 5 8 9 gt rl o R 1 x L1 TE nes 075 fen fe ET 002 sme e eege o E o o HEB 05080 O 11 L1 5 LET Oo C o o Fig 3 the Limiter resistors R22 23 and 24 Adjust these in value to avoid your 2013 from processing clipped material The limiter is configurable using a calculator refer to the Design Wizards chapter for further information http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 31 Page 9 of 22 PIRATELOGIC nin E DNI First High Pass Leaving the VCA the signal enters two way path the first one going left in the schematic enters a second high pass LR filter based around T14 C45 and C48 The second one is through C55 to T18 where the signal is summed with the inverted version first path signal arriving via T16 Fig 4 the C45 and C48 capacitors that form the First Linkwits Riley high pass Filter This filter determines both the low cut off pole aswell as the midrange start pole It does so by substraction 125 EE 9687 d CIO ene zee OJ
12. C 010 E LT RU Low note Bridge Single ended amplifier operation The 2013 01 has been designed for usage with 4 as well as 8 ohm woofers The low note amplifier consists of a single LM3886 which is capable of delivering 68watts into a 4 ohm load Especially for usage with drivers the 2013 01 has been equipped with an optional LM3886 to allow the low note amplifier to be operated in bridge mode b pu e E i fono Incase the 2013 01 is used with a 8 ohm woofer the low note LM3886 amplifier can be set to p ted 0000 we prie bridged operation bu adding an extra LM3886 at position ICS 122 Oj o o 7 FEAT II tet 5 29 2 By default the 2013 01 board is set to single ended operation with position 105 left unpopulated and pin 3 and 7 hardwired To modify the 2013 01 into bridged mode operation remove the wire between 3 and 7 and populate position 105 with LM3886 n n Oe TA eee 0 0 f 9 Before changing from single ended to bridged mode please read Power ratings to ensure safe operation ce http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 31 Page 13 of 22 AA PIRRTELOGIC Power ratings The 2013 01 is designed to drive impedances between 4 and 16 ohms and requires symmetrical rails
13. C incase one of the 3886 amplifier chips malfunction 2 and 3 form the respectively mid and hi note amplifier the low note amplifier IC4 can be optionally turned into a bridge amp using IC5 by populating the corresponding parts todo 2013 Filter calc todo 2013 limiter calc Buffer Capacitors Depending on the type of powersupply used with the 2013 module you may decide to increase or decrease the size of the onboard buffer capacitors Most switchmode powersupplies come with onboard low esr buffers and don t need the extra buffers in some cases you are even not allowed to use them because they cause the SMPS to trip while charging the 0 1 Ohm low esr elco s If you decide to go conventional by using for instance a toroid you may increase these capacitors upto 6800 uF or even bigger if physical size allows Ss es oe Fig 6 The onboard buffer capacitors E C76 amp C79 for the positive VDD rail and 09000090 9000000 lt C80 amp 82 for the negative VSS rail The HEC XE 26 eV ERU 1 maximum diameter is 18mm with a pin grid of 7 5 mm By default the 2013 01 kit is shipped with 4 pieces of 2700uF 35V Nippon Chemicon SXE low esr capacitors p ie ee 2 2 He 9 FERI IES 5 999 62 sey http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 31 Page 12 of 22 PIRATELOGI
14. ESISTOR European 1 202 R EU R0805D R0805D R19 R22 R32 R33 RESISTOR European symbol 03 R EU_RO805D RO805D R90 R102 RESISTOR European symbol 702 R EU RO805D R0805D R5 R16 R17 R18 R59 R73 RS6 RESISTOR European symbol 301 R EU_RO805D RO805D R50 RESISTOR European symbol 302 R EU R0805D R0805D R12 RESISTOR European symbol 303 R0805D R0805D R37 R49 R91 RESISTOR European symbol 3900 R EU_RO805D RO805D R45 R54 RESISTOR European symbol 3902 R EU R0805D R0805D R72 RESISTOR European symbol 701 R EU RO805D RO805D R6 R11 R27 R44 R52 R53 R67 R92 R98 RESISTOR European 702 R EU_RO805D RO805D R4 R7 R8 R9 R20 R23 R30 R35 R41 R47 R51 R64 R74 RESISTOR European R EU RO805D RO805D R26 R39 RESISTOR European symbol R EU RO805D RO805D R63 R65 RESISTOR European symbol R EU RO805D R0805D R75 R77 R80 R84 R100 RESISTOR European symbol R 0 0 INO 09 09 Se So gt 2 gt 03 01 02 EU RO805D RO805D R76 RESISTOR European 7502 R EU_RO805D RO805D R55 R56 R100 RESISTOR European symbol 00 R EU RO805D RO805D R1 RESISTOR European symbol 01 RO805D R0805D R46 R104 RESISTOR Europ
15. between 25V to 40V depending on the driver impedance The ready build 2013 01 modules are equipped with 2700uF 35V capacitors and is designed to run with 4 ohm drivers on 28V rails To accommodate the usage of 8 Ohm bass drivers the low note amplifier mau be switched to bridge mode todo elaborate on the different rail voltages Table 1 Maximum Power Supply Voltages Woofer impedance Maximum VDD VSS rails voltage Maximum Pout 9 0 196 thd 4 Ohm 8 Ohm SE Ee eee 16 Ohm 2 ____ 4 Ohm bridge 8 Ohm bridge 16 Ohm bridge 100 Watt Please consult the LM3886 data sheet http www ti com Tit ds symlink 1m3886 pdf and the Application Report http www ti com lit an snaa021b snaa021b pdf detailed information http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 31 Page 14 of 22 The printed circuit board For online full screen versions of these images please visit the following online locations component side top layer http mfb piratelogic nl data images 2013 01 01 pcbchecker top solder side bottom layer http mfb piratelogic nl data images 2013 01 01 pcbchecker bottom Fig 7 2013 01 component side PPA PEST 22 EIS 27 9 D 74 lt sL JEL 20 2013 01 01 3WAY MFB AMPLIFIER MFB PIRATELOGIC NL
16. ean symbol 02 R EU_RO805D RO805D R69 RESISTOR European symbol C4 C26 C32 C44 65 C EUCO805 C0805 C28 CAPACITOR European symbol C EUCO805K CO805K C25 C31 C43 C60 CAPACITOR European symbo 0 0805 0805 23 C34 C46 C58 CAPACITOR European symbol 48 DIODE S0D123 50D123 Di D2 DIOD 0050 024 044 050 024 044 2 D 2 2 2 European symbol b O F Neh be N ob b Se Se So Se So So 96 J 4 C9 C17 C22 C27 C30 C35 C36 C47 8 0050 024 044 050 024 044 29 European symbol OV DIODE D 2 5 D 2 5 D12 D13 DIODE BAW62 DIODE D 2 5 D 2 5 D3 D4 05 07 08 09 010 D11 DIODE 1 0 47 C EUO50 024X044 C050 024X044 C8 CAPACITOR 0 1 C5 2 5 C5B2 5 C21 C39 C51 53 24 C55 C57 63 1002 TRIM EU B25M B25M P1 P2 P4 PS POTENTIOMETER BC327 BC327D TO92 T19 PNP Transistror BC337 BC337 1092 T1 T17 NPN 2 EE 4 C49 C50 C54 C56 C66 C69 CAPACITOR European symbol European symbol is semicolon delimited and 2 10RO R EU_R1210 R1210 R103 R105 RESISTOR European symbol count value family package part description type 1080 R EU_R1210 R1210 R103 R105 RESISTOR Eu
17. gh the bill of materials column on the right side of the screen Each step takes you thru a particular component whereby the wizard automatically Switches to the corresponding layer showing you it s place on the pcb Because the BOM is maintained online it has been removed from this manual The future version of the wizard will include a feature to download the BOM in CSV format The main advantage of this online approach is that you are allways working with the latest amp greatest most up to date version Calculation mode The second operation mode offers a set of calculators to fine tune your 2013 01 module to specific driver specs by allowing you to choose custom values for e low amp high crossover frequencies e limiter values e amplifier gain settings During calculation the wizard automatically displays the corresponding filter components for easy location amp modification piratelogic audio wizards piratelogic nl 2013 01 01 x ratelogic nl data d icecast omroep nl radio6 2 05595 io __ Oo Mc 205 99 T 24 400 O 30330 4 9 O Of 0009 0 oio 0500 9 1 5 ly O00000 O00000 00000 00000 909 pi
18. ll of materials bom Pressing the download button under the bill of materials section of the wizard will open a new browser tab containing the wizards database for the currently selected board The data displayed is an export from the eagle 6 5 0 bom ulp user language program script uses the following field definitions A PIRATELOGIC i piratelogic audio x wizards piratelogic nl pet x mfb piratelogic nl data d X icecast omroep nl radio6 x 309 Dir 3976 wizards piratelogic nl pcb 2013 01 01 assembly ORO R EU_R1210 R1210 R103 R105 RESISTOR European symbol 800 R EU R1210 R1210 R93 R99 RESISTOR European symbol 300 R EU R1210 R1210 R2 RESISTOR European symbol 000 R EU R0805D R0805D R28 R88 R94 RESISTOR European symbol 1001 R EU RO805D RO805D R3 R15 R29 R31 R60 R68 R95 RESISTOR European symbol 1002 R EU_RO805D RO805D R25 R38 R43 R57 R58 R71 RESISTOR European symbol 1003 R EU RO805D RO805D R24 R36 R85 R89 RESISTOR European symbol 1004 R EU RO805D R0805D R70 R87 RESISTOR European symbol 1202 R EU R0805D R0805D R42 R61 RESISTOR European symbol 1502 R EU RO805D R0805D R14 R21 R81 R82 R96 RESISTOR European symbol 1503 R EU RO805D R0805D R48 R79 RESISTOR European symbol 1801 R EU RO805D R0805D R97 R101 RESISTOR European symbol 1802 R EU RO805D RO805D R13 R34 R66 RESISTOR European symbo 1803 R EU RO805D RO805D R10 R
19. modern drivers will allow you to build a First class motional feedback system Revisions Prior to starting work please check if the datestamp at the footer of this page corresponds with the one in the online version at http mfb piratelogic nl data docs 2013 01 usermanual en pdf 02 09 13 Initial version by CC 04 09 13 Added info on powerratings 05 09 13 Added images amp Design wizard chapter 19 09 13 Updated schematic 25 09 13 Updated schematic 29 09 13 Edited introduction added BOM 09 10 13 Added wizard info removed BOM 10 10 13 Updated wizard info describing BOM button 27 11 13 Added measurement info Erratum Anu bug fixes will be announced here http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 31 Page 3 of 22 PIRATELOGIC History The original Philips MFB enclosures were produced by Philips Gloeilampen Fabriek NV in Leuven Belgium between 1970 and 1989 At the time the concept was highly revolutionary and caused quite a stir with local hifi aficionados Future With the introduction of the portable music players the home stereo experience shifted away from separate hifi components to the smartphone and a pair of in ear headphones Because it took a long time for the hifi industry to pick up this change they only recently started to include docking stations in their mini sets new breed of active
20. ne qzw 0105102 00 2 022 00 2 ozz Occ ozz 690 190 080 840 940 E 10 699 981 nge m gt 200 a 967599 81 967599 09 021 5 SSA ONS a c 09 OND 999 OND 100854015 029 POLY 166 00 00 2 O22 00 2 022 OZ gez 6 0 89 09 05 14 860 tp M 2039 599 dozz 099 oL 528 2018 268 19208 dppa 964 998 4555 2 eyou T Ldt 169 92 i 928 2089 elu ssed CN 0 lp di 62 vto 825 i oe 104 zou 2001 Sy 058 8 528 101991109 1 m 4 e 929 ezo 4 200 Ord mm gersog 3 zomva 5 83W 8434 NI ut 5 8 528 81 54 E 82 a zosi 08 ory gsn 93 7599 294 21005918 8 528 91 9 5289 9134 SNIUM 9134 SNIUM 138 730 n 9818514 2022 any 01991019 cL Ka
21. pport For online support please visit our forum at forum piratelogic nl Thanks To Yvonne my lovely lovely lovely wife to the mfbfreaks community a whole you rock And off course to the retired developers at Philips for giving us sooo much joy Chris Camphuisen team lead PIRATELOGIC http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 58 Page 22 of 22
22. ratelogic audio 5 wizardspiratelogic nl x mfb piratelogic nl data d 2013 01 01 5 JHAY On iS Soca Ver ES E 3 22 2 3 ae 2 http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 50 Page 18 of 22 2 061 n Board measurements All measures in metric millimeters b d b d b d b d b d 4 b d w w b d 14 w w lll 000000 000000 000000 94 5 e La T is a 65 lL 55 55 55 E E I PIS 22 696 4 o oio bio eko 33 66 Pe iste l oe j QE o p http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 51 Page 19 of 22 PIRATELOGIC LM3886 measurements Inches millimeters E C Co Co Mm C LLLI dde 1 CU en Lt http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 55 Page 20 of 22 Bi
23. ropean symbol http mfb piratelogic nl data docs 2013 01 usermanual en pdf update 27 11 2013 11 19 57 Page 21 of 22 Before you start Required skillset The 2013 01 module like any mains connected apparatus will kill you if build treated incorrectly do not engage into using this kit or any other DIY project for that matter if you a lack the necessary skill sets to safely build this thing b see I m not joking see b Really Responsibility We are not responsible for failures and or damages resulting from the use of this kit and will not replace any components once they have been used soldered into the pcb Warranty Although this kit has been developed with lots of love tenderness and devotion we can only guarantee 100 operation for the ready amp assembled versions All kits are weighted amp photographed before they leave our premises to make sure we dont forget anything Might something be missing then contact us immediately within 1 week after receival The pre assembled and tested kits come with a 1 year warranty for INTL customers please note that this does not include transport costs Copyright The schematics are a modern incarnation of the Philips 22AH587 motional feedback enclosure and as such a mixed property of Philips NV and Piratelogic The PCB design and this manual are the property of Piratelogic Please note that Philips NV is not in any way related to Piratelogic Su
24. s 2013 01 usermanual en pdf update 27 11 2013 11 19 31 Page 4 of 22 PIRATELOGIC Usage The 2013 01 module contains all electronics needed to make an active 3 way motional feedback loudspeaker enclosure Tt consist of a the following building blocks e Double layer 35uM fr4 PCB measuring 80 by 100mm e Athree way 12db Octave subtractive x over Please note that contrary to most subtractive designs this does not suffer From 6db phase shift induced slopes limitations is highly configurable and completely discrete in setup thus minimizing the number of gain stages to a bare minimum e based limiter to safeguard the drivers from being fed clipped material e Discrete pre amp filter regulators e correction logic supporting both the original Philips MFB drivers as well as drivers equipped with the Measurements Specialities ACHO1 acceleration sensor Ready to use prepared woofers are available upon request e 5 automatic power on upon signal circuitry using a small 5V phone adapter as standby supply in conjunction with SV off board mains relay e Three LM3886 based amplifiers with the option to extend the low note amplifier to a bridged design using a Fourth LM3886 to accommodate 8 ohm drivers e Upto 28960 uF on board buffer capacity using 6800 electrolytes e DC protection and power sequencer to safeguard the drivers from DC in case of power amplifier failure and power on irregularities
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