frugel horn mk · drawings/contents i0/ intro i1/ pictures i2/ notes fh3-0/ plan 12mm fh3-1/ plan...

Drawings/Contents

i0/ Introi1/ Picturesi2/ Notes

FH3-0/ Plan 12mmFH3-1/ Plan 15mmFH3-1.1/ Details 15mmFH3-2/ Plan 15mm + 18mm baffleFH3-3/ Plan 16mmFH3-4/ Plan 18mm

FHx/ Plan 5/8"FH3-5/ Plan 3/4"FH3-6/ Side pattern creationFH3-7/ Alternate Choke Point ExecutionFH3-8/ Side template (metric 15mm)FH3-9/ Side template (imperial 15mm)FH3-10/ swappable supraBaffle (updated)FH3-11/ simple supraBaffle

D-0/ DampingD-1/ full size side felt template (15mm)

C-0/ 5x5 15mm cut planC-1/ 4x8 15mm cut planC-2/ 4x8 18mm simple cut planC-3/ 4x8 18mm cut plan (updated)C-4/ 4x8 18mm alternate cut plan (updated)

FH3-x/ Stacked FH3 Plan 15mmFH3-x/ Stacked FH3 MTM options

Centres for HT – FE126En, A7.3, FF125wk, EL70, A7, CHR70.x

Driver drawings – Alpair 7x, EL70, CHx70, Pluvia 7, FE126, FF105wk, FF125wk, FE103 Sol

please email me <david@planet10-hifi .com> with corrections & suggestions to make this document more useful

In late 2006 – ’07 a small group of enthusiasts collaborated to develop a compact, inexpensive corner-horn design for the DIY community. This project became the very successful Frugel-Horn, which even spawned an extremely expensive commercial adaptation.

The Frugel-Horn Mk3 [FH3] is a well tested design, with the objectives of improving upon the performance of the original box in a substantially simpler cabinet that would be tolerant of a wide range of drive units. Topologically, it is a tapped hypex corner-horn (approximated by 2 conical sections) with an internal choke serving as a low pass filter. The curved terminus is carried over from Ron Clarke's contribution to the original cabinet, and helps the wavefront exiting the horn mouth to return to its more natural spherical shape.

The cabinet has to date been successfully tested with Fostex FE126En, FE126e, FE127e, FF105wk, FF125wk, FE138eSR*, Mark Audio CHR-70, CHP-70, Alpair7, A7.3, A7p, Pluvia Seven, CSS EL70, Tangband W5-1611, more. Any 4-5" (100-130mm) driver is worth trying. Adjustment & tuning of the cabinet is accomplished with varying amounts of damping, and proximity to rear boundary walls / corners.

* (this driver does bass really well in FH3, but has other issues which preclude it being recommended)

FH3 is made freely available for DIY builders to make their own cabinets; we see it as an introduction to back-loaded horns, from which people may wish in future to move on to larger and / or more complicated designs.

The 1st supraBaffle turned out to be awkward, a simpler supraBaffle. Defectors have been sketched but interest has not pushed its completion, doubling as a stealthWoofer a bit greater.

Note: any commerical entity intent on manufacturing complete speakers or flat-paks for resale will need to follow the guidelines on the Frugal-Horn site: www.frugal-horn.com/use.html

This project's contributors:DIYers who went ahead, assisted in beta testing, offered comment and suggestionsdiyAudio: host for interactive discussion threadsScott Lindgren <http://www.wodendesign.com/> design & documentationRon Clarke: the curved mouthChris Bobiak: Original test builds & drawing contributionColin Topps: drawing contributionYour name here: you can help with FAQ, assembly diagrams & pictures, photo gallery. Probably more.

Local cottage industry to make & distribute flat-paks encouraged , please contact Dave (david@planet10-hifi .com)

Frugel-Horn Mk306-may-2018 | © 2010-2018 Frugal-Horn.com

Major Sponsors& Cheerleaders

Pictures25-february-2012

more pictures at http://www.diyaudio.com/forums/full-range/199849-fh3-build-gallery.html

Comments & tips pulled form forum posts ———————————————————————————————

Bob Brines:Taking Colin!s diagram !sheet C"#$" here is how I would one#man it out of a $x% panel&

'& Build yourself a T#square cutting guide out of scrap material& You can (nd the instructions out there on the Internet&

''& I have a )!x*! sacri(cial table top on a pair of saw horses& I can still manage to get a $x% sheet of plywood on it" but I can no longer get a sheet of MDF on it& For MDF" I just drop the sheet on the driveway and put $ +x$!s under it&

,& With a circular saw" cut o- the $ ,$'mm pieces&

+& Cut between the remaining doubled pieces&

)& Now you can rip the individual pieces on a table saw as long as you can rig some kind of out.ow table& I have a jig that (ts my router table so that it can double as an out.ow table for the table saw& Of course" if you don!t have a table saw" you can do this with a circular saw and the rip fence you made above&

You can get the two cross cuts done at Lowes!/HD 0speaking to the USA now1" but my experience is that their panel saws are not square in any axis and I have to re#cut the ends& Also" the utility blade in their saw really tears up the cut& I have a *' tooth blade in my circular saw that does an acceptable job& Not as good as the %' tooth blade in my table saw" but acceptable&

That!s my technique& YMMV&

Bob———————————————————————————————

PDRCanada:Another tip for cutting sheet goods on saw horses&&&&&&

Go to your nearest hardware store buy a +!x$! pc of + or )2 white styrofoam and a roll of duct tape&

Cut the stryo to match the top of your saw horses&&&&&&use the duct tape to fasten it around the top of the horse&

You can now cut your sheets with out hanging them over the saw horses& Just cut thru the styro&&&&&make sure your styro is deeper than your saw cut&

When the styro gets beat up&&&remove and replace&

This method is used on jobsites all over to cut large panels&———————————————————————————————

Poultrygeist:A3er much frustration in searching for ,/+ 4 0 ,+mm 1 cotton or wool felt I found an unlimited supply at my local auto junk yard& The carpet backing from ,55'!s Fords is ,/+ inch thick" works great and costs nothing& Had it not been up for sale I would have scavenged my own Mustang but instead I found a F,6' donor which surrendered enough felt for a herd of horns&

Notes)'#september#+',,

Notes ———————————————————————————————

'/ quality multi#ply/plywood is recommended& In general" void free" the greater number of plies the better,/ reference build is ,6mm plywood" to allow rebate for some drivers ,%mm ba7es recommended 0ie Alpair 81+/ if MDF or particle board used a minimum panelthickness of ,%mm" good multi#ply minimum ,+mm)/ the most di9cult detail in the build is the joint at the bottom of back" inside divider& A number of means to achieve this are detailed$/ a removable vestigial supraBa7e is shown that allows experimentation with di-erent drivers6/ a full size supraBa7e can be added as shown in the Frugel#Horn Mk, document*/ A full height rear de.ector based on that shown in the Frugel#Horn Mk, document can be added8/ a stealthWoofer based on a full#height de.ector is under development&

———————————————————————————————

for those without major woodworking kit" a growing number of independent .at#pak vendors ar ecoming on#line& Canada 0North America1" Netherlands & UK 0Europe1 & Australia as of this document revision

Donations ————————————————————————————

Frugel#Horns have always been free for DIY builders to construct& We received many inquiries by buiders who wanted to send some money& For this iteration we would encourage you to pay it forward with a donatation of money or time to some charitable organization& Listed below are some choosen by the three main contributors to the design & documentation&Quite literally" every little helps&

Royal British Legion: www&britishlegion&org&ukAlzheimer!s Research UK: www&alzheimersresearchuk&orgCancer Research UK: www&cancerresearchuk&orgDonor!s Choose: www&donorschoose&orgSave The Children: www&savethechildren&orgBig Brothers Big Sisters: www&bbbs&orgChris ,Chris +Chris )

Notes:

1/ drawn with 12mm material2/ optional ~300 mm wide/diameter supra-baffle not shown. Its purpose is to move the baffle-step drop off to where the horn action starts flattening lower midrange FR3/ intended for Fostex FE126En, CHR-70, Alpair 7, EL704/ damping will differ for each driver

1775 mm radius (70")

864[34]

140[5 1/2]

152[6]

70[2 3/4]

85°

70[2 3/4]

888[34 31/32]

442[17 3/8]

140[5 1/2]

164[6 15/32]

78[3 1/16]

70[2 25/32]

176[6 15/16]

Frugel-Horn Mk3 1v01sheet FH3-0 – 12mm Plan

designed by S Lindgren | drawn by dld06-may-2018© 2010-2018 Frugal-Horn.com

4.9°

429[16 7/8]

38[1 1/2]

5°

Notes:



864[34]

140[5 1/2]

155[6 3/32]

70[2 3/4]

70[2 3/4]

85.2°38

[1 1/2]

70[2 3/4]

4.9°

894[35 3/16]

432[17]

449[17 11/16]

140[5 1/2]

170[6 11/16]

76[2 31/32]

4.8°

70[2 3/4]

171[6 3/4]



Notes:

1/ drawn with 15mm material2/ joint detail at lower end of the internal panels – 5 degree angle cut on the inside of rear panel can be cut on table saw with tenoning jig and blade set to 5deg or carefully sanded

830[32 11/16]

171[6 3/4]

Frugel-Horn Mk3 1v01sheet FH3-1.1 – details 15mm designed by S Lindgren | drawn by dld06-may-2018© 2010-18 Frugal-Horn.com

756[29 3/4]

434[17 3/32]

4.8°

4.8°

5.9°

this end can berounded

4.9°

15mm radius

Notes:



864[34]

140[5 1/2]

155[6 3/32]

70[2 3/4]

70[2 3/4]

85.2°38

[1 1/2]

70[2 3/4]

4.9°

15mm radius

894[35 3/16]

432[17]

452[17 13/16]

140[5 1/2]

170[6 11/16]

76[2 31/32]

4.8°

70[2 3/4]

171[6 3/4]

Frugel-Horn Mk3 1v01sheet FH3-2 – 15mm Plan w 18mm baffle


Notes:

1/ drawn with 16mm material2/ optional ~300 mm wide/diameter supra-baffle not shown. Its purpose is to move the baffle-step drop off to where the horn action starts flattening lower midrange FR


864[34]

140[5 1/2]

155[6 3/32]

70[2 3/4]

70[2 3/4]

85.2°38

[1 1/2]

70[2 3/4]

4.9°

896[35 9/32]

432[17]

450[17 23/32]

140[5 1/2]

172[6 25/32]

76[2 31/32]

70[2 3/4]

171[6 3/4]



5°

Notes:



864[34]

140[5 1/2]

158[6 7/32]

70[2 3/4]

70[2 3/4]

85.2°

18mm radius

900[35 7/16]

459[18 1/16]

140[5 1/2]

176[6 15/16]

439[17 9/32]

4.9°

70[2 3/4]

194[7 5/8]

76[3]

4.8°



38[1 1/2]

178[7]

Notes:


864[34]

142[5 19/32]

159[6 1/4]

70[2 3/4]

70[2 3/4]

18mm radius

902[35 1/2]

463[18 1/4]

140[5 1/2]

443[17 7/16]

70[2 3/4]

197[7 3/4]

79[3 3/32]

4.8°

Frugel-Horn Mk3 1v01sheet FH3-5 – 3/4" Plan


38[1 1/2] 85°

5°

68" (1727mm) radius

899[35 3/8]

61[2 13/32]

To fabricating a side panel template by hand, the curve can easily be drawnusing a narrow flexible board (1/4" MDF works great) and the 4 points asdimensioned .

Mark points A,B (chord ends), C (chord centre line) and D (segment height)on the work-piece. Use a square to draw a perpendicular line (C-D)

Clamp or screw a wood block straddling the centreline at D, clamp theflexible board to this block and each end of the chord ( A & B) then drawthe curve.

Cut to the outside with jig or band saw, and carefully sand to line

449[17 11/16]

449[17 11/16]

A

B

CD

Frugel-Horn Mk3 1v0sheet FH3-6 – curve chord & height

designed by S Lindgren | drawn by dld27-september-2011© 2010, 2011 Frugal-Horn.com

147[5 25/32]

As originally designed

A difficult piece to cut

Modified for easier build

Adds an additional piece, not all that tolerent of thicker material

Alternateeasier build

Overcomes material thickness issues. Requires extra material – 1/2 round with radius of build material

Note: example uses 15mm material

Frugel-Horn Mk3 1v01sheet FH3-7 – alternate choke point execution


0 2 4 6 8 10 12 14 16 18 20 22 24 26 28-2-4-6-8-10-12-14-16-18-20

024681012141618202224262830323436384042444648505254565860626466687072747678808284868890

894[35 3/16]

188[7 13/32]

185[7 9/32]

76[2 31/32]

Frugel-Horn Mk3 1v01sheet FH3-8 – side pattern (1cm grid)


894[35 3/16]

1 2 3 4 5 6 7 8 9 10 11-4 -3 -2 -1 0-8 -7 -6 -5

0

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

1

32

33

34

35

188[7 13/32]

185[7 9/32]

76[2 31/32]

Frugel-Horn Mk3 1v01sheet FH3-9 – side pattern (1/2" grid)


Notes:

0/ drawn with 18mm panels1/ shown on FH3 in 15mm material

Frugel-Horn Mk3 1v01sheet FH3-10 – removable supraBaffle (15mm)designed by C Bobiak | drawn by dld06-may-2018© 2010-18Frugal-Horn .com

115[4 17/32] 165

[6 1/2]

70[2 3/4]

120[4 23/32]

110[4 11/32]

175[6 7/8]

BaffleCutout

cut out on backside of sB is20mm down from the top

(15mm pnels, would be 23mmdown with 18mm panels)

208[8 3/16]

85[3 11/32]

200[7 7/8]

86[3 3/8]

these dimensions allow for a small gapto accomodate veneer,laminate etc, if

needed the wings can be made tight tothe sides and the vertical edges can be

sanded flush.

Notes:

0/ drawn with 18mm panels1/ shown on FH3 in 15mm material

Frugel-Horn Mk3 1v01sheet FH3-11 – simple supraBaffle (15mm)designed by C Bobiak | drawn by dld06-may-2018© 2010-18Frugal-Horn .com

115[4 17/32] 165

[6 1/2]

70[2 3/4]

120[4 23/32]

110[4 11/32]

175[6 7/8]

BaffleCutout

cut out on backside of sB is20mm down from the top

(15mm pnels, would be 23mmdown with 18mm panels)

170[6 11/16]

200[7 7/8]

1/2" (12mm) cotton or wool felt

increasing density as you approach the point. Take the equal density fluff on the right and squeeze it into the point (~30g = 1 oz )

walls lined around driver to minimize reflections

this is the area subject to additional poly-fluff damping, depends on driver

see notes page ix for driver-by-driver

(at 1/2 lb/ft^3 this volume would need ~40g (1.4 oz) of fluff

1/ FE126En blue + orange2/ CHz70 blue + orange + 20-40g3/ EL70 blue + orange + 20-40g4/ A7x blue + orange + 20-40g5/ FF105/125wk blue + orange + 20-40g

poly-fluff (BAF, acoustistuff, pillow stuffing -- different colours represent different "zones" to add stuffing too)

Frugel-Horn Mk3 1v01sheet D-0 – damping plan


Full Size when printed at !""#Remember these need to be mirror image pairs

Note:speci$cally for !%&' felt material as relevant to planet!"(hi$ )atpak kits

!*"+, !%&-

!*&+, !.%/&-

!,*+0 !%!0-

Frugel(Horn Mk/ !v"sheet D(! 1 Side felt template 2!,mm3

designed by S Lindgren 4 drawn by dld&5(september(&"!!© &"!"6 &"!! Frugal(Horn7com

ba!

e

Frugel"Horn Mk# $v%Sheet C"% & 'x' $'mm cut sheet

layout by Chris Bobiakdrawn by dld ( )*"sept")%$$© )%$%+ )%$$ Frugal"Horn,com

bott

om

back

internal top

back

internal

ba!

e

bott

omto

p

Notes:$( 'mm kerf & trim allowance)( very tight cut plan

$*)-. #(/0

/#/-$* #(#)0

121-#' #(10

$/%-' $()0

*/$-)2 '(#)0

1$'-#) #(#)0

$/%-' $()0

Frugel!Horn Mk" #v$Sheet C!# % &x'( #)mm cut sheet

layout by David Dlugosdrawn by dld * +,!sept!+$##© +$#$- +$## Frugal!Horn.com

ba/

e

bott

om

inte

rnal

inte

rnal

ba/

e

bott

om

Notes:#* )mm kerf & trim allowance+* room to increase kerf for CNC"* works for #++$x+&&$mm sheets

top

top

&"&0#, "*"+1

'2'0") "*'1

#&$0) #*+1

#,+03 "*&1

'#)0"+ "*"+1

,&#0+2 )*"+1

back

back

#&$0) #*+1

!"#$% !&'(

Frugel)Horn Mk* !v#Sheet C)' + "x,- !,mm simple cut

layout by Colin Toppsdrawn by dld & '.)sept)'#!!© '#!#/ '#!! Frugal)Horn0com

Notes:!& %mm kerf & trim allowance'& minimal cuts to break up the sheet 1ie at the lumber shop2 Dimensions rounded up to the closest higher mm or !&,3

!"#$% !&'(

"%4$!, !&!5(

4##$*% .&!5(

Cut !

Cut '

Cut *

Cut "

Cut %

Cut 5

Then cut out the rectangles to make the sides out of

top

140[5 1/2]

869[34 3/16]

top

830[32 11/16]

140[5 1/2]

baffl

ebaffl

e

459[18 1/16]

195[7 11/16] 756

[29 3/4]

Frugel-Horn Mk3 1v0Sheet C-4 – 4x8’ 18mm alt cut

layout by David Dlugosdrawn by dld / 25-february-2012© 2010 – 2012 Frugal-Horn.com

Notes:1/ 5mm kerf & trim allowance2/ room to increase kerf for CNC3/ works for 1220x2440mm sheets

internal

back

back

internal

bott

ombo

ttom

Frugel-Horn Mk3 1v0Sheet C-3 – 4x8’ 18mm cut sheet

layout by David Dlugosdrawn by dld / 25-feb-2012© 2010, 2011, 2012 Frugal-Horn.com

bott

om inte

rnal

Notes:1/ 5mm kerf & trim allowance2/ room to increase kerf for CNC3/ works for 1220x2440mm sheets4/ optimized for maximum offcut not easiest cutting & maintaining grain matching

top

756[29 3/4]

140[5 1/2]

459[18 1/16]

back

back

inte

rnal

bott

omto

p195[7 11/16]

830[32 11/16]

869[34 3/16]

baffl

e

baffl

e

optional parts for a 36mm tall stabalization base 460

[18 1/8]

140[5 1/2]

406[16]

279[11]

Double Frugel-Horn Mk3 0v8sheet FH3-x– 15mm Plandesigned by S Lindgren | drawn by dld08-november-2013

1633 mm radius (64 1/4”)

1735[68 9/32]

70[2 3/4]

1771[69 23/32]

454[17 29/32]

140[5 1/2]

170[6 11/16]

439[17 5/16]

70[2 3/4]

38[1 1/2]

188[7 13/32]

36mm half round piece defines choke point

140[5 1/2]

155[6 3/32]

70[2 3/4]

70[2 3/4]

20[25/32]

1627[64 1/16]

170[6 11/16]

91[3 9/16]

10[13/32]

170[6 11/16]

70[2 3/4]

77[3 1/16]

73[2 7/8]

too much to try shaping the bezel back?

170[6 11/16]

72[2 27/32]

70[2 3/4]

22[7/8]

78[3 1/16]

would require an external cuved birt to hide back of tweeter.

Double Frugel-Horn Mk3 0v8sheet FH3-x– 15mm MTM detaildesigned by S Lindgren | drawn by dld12-november-2013

Ideal Possible? buildabilitycompromise

131[5 5/32]

179[7 1/16]

119[4 11/16]

155[6 3/32]

164[6 15/32]

140[5 1/2]

264[10 13/32]

240[9 7/16]

222[8 3/4]

198[7 25/32]

9[11/32]

Notes:

1/ drawn with 12mm material2/ this design does not go low, designed as a timbre matched centre for FE126En Frugel-Horn Mk3s3/ All internal panels lined with ~1/2” (12mm) wool felt (preferred), 1” (25mm) poly-fluff batting, or 3/4“ (19mm) fiberglass Note that it is hard to get into the box a8er it is sealed up. Do not occlude vent opening.

FE126En Centresheet Aux-0 – 12mm Plan

designed by & drawn by D Dlugos03-november-2011

Notes:

to Subscribers: Centre channel enclosures have special constraints related to available space as near the display screen as possible (generally immediately below or above). This centre is designed for minimum height and minimum depth (without introducing more complex vents). If you have other specific requirements, contact me and i’ll morph the design to more closely fit your needs. For installations needing a smaller box, there is the slightly smaller cMarS Centre (not drawn as of this note) and considerably smaller Alpair6m (coming soon)

0/ designed for Mark Audio Alpair7.31/ All panels 15mm thick 2/ walls lined with 1/2” (12mm) cotton or wool felt. Centre side of holey brace lined with lower density felt or poly batting

464[1812]

Alpair 7.3 dMar-Ken7.3a Centre 0v93sheet xx | plan (15mm)

03-june-2013 designed & drawn by dld© 2011-2013 planet_10 enterprises limited

for licenced use only

202[8]

make allowance for terminal cup if necessary (terminal cup should be as small as possible)

172[7]

12[12]

434[17]

386[15]

160[612]

9[12]

416[1612]

This edge can be champhered or rounded

170[612]140

[512]

Notes:


0/ designed for Fostex FF125wk1/ All panels 15mm thick 2/ walls lined with 1/2” (12mm) cotton or wool felt. Centre side of holey brace lined with lower density felt of poly batting

462[18 3/16]

Fostex FF125wk dFonken125 CentreA 0v82sheet xx | plan (15mm)

23-november-2015 designed & drawn by dld© 2011-2015 planet_10 enterprises limited

free for non-commercial use only

202[7 15/16]


172[6 25/32]

40[1 9/16]

434[17 3/32]

386[15 3/16]

132[5 3/16]

9[11/32]

416[16 3/8]


170[6 11/16]140

[5 1/2]

Notes:0/ A centre channel based derivative of the Mar-Kel70 designed for modified Creative Sound/Mark Audio EL70, will work well with stock driver1/ All panels 15mm2/ brace shape is only suggestive – prime purpose is to brace driver, it needs to be about 35-40% holes. (ie if you have to mount a terminal cup in the middle, you’ll want to make sure the brace allows clearance), It is centrally mounted on the driver magnet3/ Don’t forget to angle cut the back of the driver cut-out to give it breathing room4/ All internal panels lined with ~1/2” (12mm) cotton or wool felt (preferred), 3/4” (19mm) poly-fluff batting, or 1” (25mm) fiberglass Note that it is hard to get into the box a7er it is sealed up (means terminals need to be solderable from outside the box as well)

440[17 5/16]

319[12 9/16]

410[16 5/32]

Centre A Mar-Kel70 0v9CSS EL70 | 15mm

© 2011-2012 planet_10 enterprises limited18- februaet-2012 | designed & drawn by dld

free for non-commercial use only

123[4 27/32]

153[6 1/32]

289.6[11 13/32]

12[15/32]

Notes:


0/ designed for Mark Audio Alpair7 1/ All panels 15mm thick 2/ walls lined with 1/2” (12mm) cotton or wool felt. Centre side of holey brace lined with lower density felt of poly batting

460[18]

Alpair 7 dMar-Ken7a Centre 1v01sheet xx | plan (15mm)

17-september-2011 designed & drawn by dld© 2011 planet_10 enterprises limited | for licenced use only

202[8]


172[7]

9[12]

430[17]

386[15]

163[612]

7[12]

416[1612]


170[612]140

[512]

Notes:0/ designed for Mark Audio CHR70/70.2/70.3 1/ All panels 15mm thick 2/ walls lined with 1/2” (12mm) cotton or wool felt. Centre side of holey brace lined with lower density felt of poly batting

460[18]

CHR70 (any) dCHR-Ken70a Centre 1v0sheet xx | plan (15mm)

16-february-2012 designed & drawn by dld© 2011-2012 planet_10 enterprises limited

for noncommercial use only

202[8]


172[7]

10[12]

430[17]

386[15]

162[612]

7[12]

416[1612]


170[612]140

[512]

135[5 5/16]

75[2 15/16]

103[4 1/16]

8.5[11/32]

10[3/8]

60[2 3/8]

130[5 1/8]

59[2 5/16]

74[2 29/32]

bezel cover

use with single magnet or added a 2nd with magnet cover

Ø115[Ø4 17/32]

Gasket compresses to ~1.5mm with appropriate pressure

Alpair 7.3All Partsdriver dimensionsdrawn by dld | 06-may-2018

Alpair 7.34 possibilitiesdriver dimensionsdrawn by dld | 23-june-2011

4 1/16[103]

11/32[8.5]

5 1/8[130]

2 5/16[58.6]

4 17/32[115]

4 1/16[103]

11/32[8.5]

5 1/8[130]

2 29/32[73.6]

4 17/32[115]

5 5/16[135]

2 15/16[75]

4 1/16[103]

3/8[9.9]

4 17/32[115]

5 5/16[135]

4 1/16[103]

3/8[9.9]

2 3/8[60]

4 17/32[115]

A: 1 magnet / no bezel cover B: 2 magnets / no bezel cover

C: 1 magnet / bezel cover D: 2 magnets / bezel cover

102[4]

124[4 7/8]

6[1/4]

72[2 13/16]

Notes: 1/ same basket as CHR/CHP-70 but has a double magnet with cover

EL70 extended range driver dimensions

drawn by dld | 06-may-2018

102[4 1/32]

124[4 7/8]

6[1/4]

56[2 7/32]

70[2 3/4]

allow ~1 mm for gasket

CHR-70.3CHP-70.2CHBW-70driver dimensionsdrawn by dld | 06-may-2018

Ø112[Ø4 13/32]

100[3 15/16]

122.3[4 13/16]

4.5[3/16]

58[2 9/32]

Pluvia Seven / CHS-70

driver dimensionsdrawn by dld | 14-november-2017

70[2 3/4]

112[4 13/32]

allow ~1 mm for gasket

3[1/8]

107[4 7/32]

92[3 5/8]

85[3 11/32]

51[2]

Fostex FF105wkDimensions 0v91

19-april-2018 | drawn by D Dlugos© 2009-2018 planet_10 enterprises limited


2.5[3/32]

Ø115[Ø4 17/32]

Fostex FE108e∑Dimensions 0v92

19-april-2018 | drawn by D Dlugos© 2009-2018 planet_10 enterprises limited


128[5 1/32]

102[4 1/32]

65[2 9/16]

2[1/16]

90[3 17/32]

Fostex FE103 SolDimensions 0v9

24-april-2018 | designed & drawn by D Dlugos© 2009-2016 planet_10 enterprises limited


107[4 7/32]

92[3 5/8]

80[3 5/32]

47[1 27/32]

2.5[3/32] 5x7mmØ114

[Ø4 1/2]

frugel horn mk · drawings/contents i0/ intro i1/ pictures i2/ notes fh3-0/ plan 12mm fh3-1/ plan...

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