Philips 9710M Full Range....

[PET240]

Just did a quick search here, dont see anything on the Philips 9710 drivers
Anyone have any thoughts or suggestions for enclosures?

Thanks,

Drew

 

[kvaal]

Philips 9710/

 

[IG81]

I used it in a Karlson 12, it did well enough there. For a straight-up reflex, it wants something larger than the 40L recommended by Philips. I tried ~50L and was not crazy about it. It'd probably be happy in 100L+. A large TQWT might be pretty good too.

IG

 

[GM]

I've done some MLTL, TQWT designs for others, so how big, tall can you tolerate?

GM

 

[IG81]

I've done some MLTL, TQWT designs for others, so how big, tall can you tolerate?

GM

Just how large would you make it for a "no-compromise" (I know - there always are, but still...) reflex or TQWT?

IG

 

[hm]

horns

Hello,

look my sat horns:
Horn, Trumpet, Schalmei

and the double horns;
Saxophon, RDH 20, Posaune XL

 

[bjorno]

FYI,

b🙂

 

[tigrine]

I made exactly the same model as this address.

2A3 Maniac: Hochwirkungsgradlautsprecher: Offenes Gehäuse mit Seas FA22RCZ - der Bau

I used the 9710. The sound is very good, detailed, beautiful with good bass. For jazz and acoustic music.
Very easy to build.
I often alternate between this model and my old Bozak.

 

[bjorno]

~65L AD 9710M OD-TL FR when tamed

FYI,

b🙂

Adding a Gldy plot:

b 🙂

 

[PET240]

Have not got huge space, bout 4200mm wide, so a large cab is not going to work.
I do like the triangular cab as linked, 300wide would be close to max. Heavy base to make it a little more child friendly would be good.

Thank you all for the input so far!

 

[tigrine]

For those who would like to build the triangle cab , here's the plan.
Dimensions are in mm. Divide the size by 25.4 (25,4 mm = 1")

 

[DrBoar]

The Lowther Accousta 115 at least is a terrible choise that I did with the 9710. The horn does not work with that driver and facing forward the drivers sound shrill. The 9710 is intended to face upwards or away from the listener. It predates stereo.

 

[Xerxes75]

i build a TQWT with the 9710/M8 as driver and i just love it and it is just 26.4 (cm) wide.

 

[bjorno]

i build a TQWT with the 9710/M8 as driver and i just love it and it is just 26.4 (cm) wide.

Hi Xerxes,

Your design is IMO the way to go,way better than the suggested 'German' box proposed here-above:
The design is IMO a Lemon Design...

Luckily the opinion what's an acceptable FR is very varied but if ignoring to present an acoustic load in the vicinity of fs is a method I never have encountered before..

I've used 9710M in more than 50 build since 1968 and all were survivors ...over time.😀

b 🙂

 

[PET240]

Gday Xerxes,

Could you please add more detail regards measurements, material and thickness and stuffing etc.
Please email me the info if that works?
Thanks,
Drew
I dont know how I just changed font size.....

 

[Xerxes75]

hi Pet-240

well i don't have al kinds or measurements like Bjorno but i have off course the dimensions etc. I will send you a PM when i have them.

 

[Xerxes75]

dimensions etc.

Well i wrote that i would sent a PM but maybe there are more people who want something like this. so in the attachment there is a quick drawing i made just now.

I filled the bottom with fine sand for stability and all the sides (except the baffle backside) with under carpet. There is no filter or BSC.

all the panels except the baffle are 22mm MDF the front is 24mm (or 2x12mm) plywood.

but if you are limited with space you could build a small Briggs cabinet (see attachment) this is simple, small and sounds great.

 

[GM]

Just how large would you make it for a "no-compromise" (I know - there always are, but still...) reflex or TQWT?

IG

Well, for a T/S max flat alignment tuned to ~35 Hz, a MLTL is around 60" high and ~18" square or ~8.733 ft^3 net.

A TQWT is similar sized, just shaped differently.

GM

 

[PET240]

Hey GM,

Can you advise any differences between the two regards sound, speed, decay etc please?
Also what size diffrrence are you thinking for the TQWT?

Thanks,
Drew

 

[IG81]

Well, for a T/S max flat alignment tuned to ~35 Hz, a MLTL is around 60" high and ~18" square or ~8.733 ft^3 net.

A TQWT is similar sized, just shaped differently.

GM

Thanks GM!

My "accidental MLTL" estimation is pretty much in line with this. Such a box might put out some pretty good bass, though GD may be about as high as tolerable (I don't know what my threshold is here though). I do not own my pair of 9710 anymore, but still keep an interest in these special drivers.

IG