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Post by jhelms on Sept 29, 2016 16:20:39 GMT
Hey Friends,
Frans and I have been working on the G1217 version of the in-line Kameleon filter. Here are the details:- Pre-built and kit versions of the in-line filter will be available just as our amplifiers are / Built with the same excellent quality parts and PCB work - We will be producing and stocking modules for all headphones Frans has modeled so far. Most popular modules will come first, others will come in time as requested. These will be his reference designs - Modules will of course be plug and play! - Many wanted a design to sit under the amplifiers. I totally get that. However, this design will be standalone. The reasoning for this is we would have to have custom chassis parts made for each amplifier design past and present as well as a stand-alone design. In short, a big pain in the arse. This design will be a stand-alone unit in a G1217 style chassis to keep things affordable and dead sexy. There is no volume control - just line in and line out. - The unit can be ordered with power supply for stand-alone use or pass through cable (G1217 amplifiers can use the pass through cable). With the pass-through, you simply plug your Ember, Polaris, Sunrise etc.. power supply into the Kameleon. There is a secondary port in which you will plug the pass through cable into which will go to your amplifier. This way a single power supply handles both units - Kameleon will have a 5 year warranty as standard with all G1217 products  (pictured Kameleon is with CNC'ed alu chassis) Pricing for acrylic chassis:- $199.99 built / $179.99 kit for Kameleon / Pass through cable - $229.99 built / 209.99 kit for Kameleon / With PSU - Modules $39.99 each - CNC chassis adds $39.99 to kit or built You can order the Kameleon HERE
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solderdude
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Post by solderdude on Sept 29, 2016 16:53:13 GMT
Supported modules till today (March 2017, v1.04)
Crossfeed (narrows the soundstage)
Linear amplifier with (3) different amount of gains in case you want to boost the signal of your source.
Bass boost with a few different (fixed amount, not adjustable) types of bass boost of your choice.
AKG K612 (K601) (lowers treble peaks and adds subbass) *
AKG K701 (removes the 2kHz treble peak, lowers the upper treble and adds missing bass)
AKG K702 (removes the 2kHz treble peak, lowers the upper treble and adds missing sub bass)
AKG K712 (adds subbass, lowers warmth a tiny bit, removes slight treble peak)
AKG K7xx (adds subbass, lowers warmth a tiny bit, removes slight treble peak)
AKG K812 (adds subbass, lowers warmth somewhat, removes slight treble peak)
AKG Q701 (adds subbass, lowers warmth midbass, removes treble peak)
Audeze LCD2 / LCD2 rev2 (adds slight subbass and improves clarity, removes treble peak)
Audeze LCD3 (adds slight subbass and improves clarity, removes treble peak)
Audio Technica ATH-M40X (lowers bass hump and treble peak and extends subbass) *
Beyerdynamic DT770-Pro 32 (lowers the bass somewhat and removes the treble peak)
Beyerdynamic DT770-Pro 80 (adds subbas lowers the bass slightly and removes the treble peak)
Beyerdynamic DT770-Pro 250 (lowers the bass somewhat and removes the treble peak) *
Beyerdynamic DT990-600 (old version) (lowers the bass and treble 'hump' and extends subbass) *
Beyerdynamic DT990-Pro 250 (lowers the bass and treble 'hump' and extends subbass) *
Beyerdynamic DT1350 with EDT1350-NL pads (adds the (sub)bass that is removed by the larger pads) *
Beyerdynamic T5P (removes the treble 'peak' and corrects treble response)
Denon AH-D2000 (removes the treble issues, improves clarity/presence)
Modified Fostex T50RP is ONLY intended for T50RP's with SRH940 pads fitted) *
Fostex T50RP stock (adds bass and midbass bloom, extends treble and removes treble peak)
Fostex T50RP with HM5 velourspads (adds bass, extends treble and removes treble peak)
Fostex T50RP mk3 stock (adds subbass, adds body to bass, improves clarity and extends treble)*
Fostex TH-X00 Mahogany (adds subbass, adds some clarity and improves the treble quality) *
Fostex TH-X00 PurpleHeart (adds subbass, lowers bass levels, adds clarity, improves treble quality)
HIFIMAN HE5 (adds some clarity and equalizes the treble peak)
HIFIMAN HE6 (adds some clarity and removes the treble peak)
HIFIMAN HE350 (adds subbass and removes treble peak) *
HIFIMAN HE350 with passive treble filter (adds subbass and improves clarity) and a version for SRH1840 pads
HIFIMAN HE400i (adds bass and warmth, removes the treble peak) *
HIFIMAN HE500 (adds some clarity and removes the treble peak)
HIFIMAN HE560 (adds some subbass, clarity and removes the treble peak)
Monoprice M1060 (adds some bottom end and clarity as well as upper treble, lowers the 4.5kHz ringing)
Mr Speakers Alpha Dog (adds some clarity and adds 'sparkle' up top)
Philips SHP9500 (adds some bass and body and clarity, removes some treble) *
Philips Fidelio X1 (adds some sub bass and clarity) *
Philips Fidelio X2 (increases clarity and removes treble peak)
Philips A5Pro stock pads (corrects the overall tonal balance towards a more Hi-Fi signature) *
Philips A5Pro velours pads (adds some sub bass, clarity and treble extension) *
Sennheiser Momentum OVER-ear (shaves off some bass, adds sparkle up top and extends sublows)
Sennheiser HD555 / HD595 (adds some subbass)
Sennheiser HD598 ( adds some subbass and lowers treble peak)
Sennheiser HD580 / HD600 (extends subbass, removes slight upper mids peak) *
Sennheiser HD650, old (black driver, old pads) version (extends subbass, removes excess 'warmth') *
Sennheiser HD650, new (silver driver, new pads) version (extends subbass and removes slight midbass hump) *
Sennheiser HD6XX (Massdrop), (extends subbass and removes slight midbass hump) = current HD650.
Sennheiser HD700 (adds subbass, lowers warmth, removes treble peak)
Sennheiser HD800 (adds (sub)bass and removes the 6kHz treble peak and lowers the 10kHz peak) *
Sony MDR-1A (removes overly warm signature and slight edge, overall improvement in clarity) *
Sony MDR-Z7 (removes overly warm signature and adds upper treble extension)
Superlux HD681-EVO (removes excessive warmth and small peak in the treble) *
* based on own measurements
When you would like to know if another than the listed headphones can be corrected in tonal balance please ask here and will look into it.
Not all headphones can be corrected.
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Post by tunkejazz on Sept 30, 2016 8:04:48 GMT
Yeah! That was quick! :-)
I will share my experience with Frans' prototype, totally worth it!
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Post by jhelms on Sept 30, 2016 14:30:29 GMT
Right on man - glad you are digging it  |
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Post by husafreak on Sept 30, 2016 14:38:02 GMT
Man, I hate to be the first to ask, but since the Massdrop Fostex TH-X00 is the only headphone I (currently) own that would be a module for me. Cool to see this bad boy come to light.
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Post by husafreak on Sept 30, 2016 14:46:45 GMT
Does the basic Kameleon come with a choice of module or is that a required additional purchase to use it?
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Post by tunkejazz on Sept 30, 2016 20:10:02 GMT
Ok, I finally managed to solder one extra resistor in the HE400i filter. Now I can use Frans' prototype with the D2000 and HE400i filters. I asked Frans to make the D2000 in such a way that the excellent bass would remain untouched. He did a great job balancing the mids to give these cans more clarity in the mids. With the filter on, the difference is subtle because it affects a very specific part of the frequency range. But if I use the filter for a while and then I turn off the switch, the change is quite evident. Without the filter, the overall sound becomes a bit mudded, probably because the mids in the default phones are a bit recessed. I like much more the new sound signature. With the HE400i the effect is MUCH more apparent. The added sub-bass is greatly appreciated, and Frans removed the small treeble peak around 10 kHz (IIRC). There is also more clarity in the mids. The main effect is that listening to these cans at low volume with the filter on, the sound is more enjoyable thanks to the extra bass and added clarity. Lovely change! Needles to say that the difference between having the filter on/off is much larger than changing amp, and as large as changing cans. I think it is one of the best investments I ever made in this kind of equipment and, at least with both my cans, I can only recommend the filters! Crispy has made some comments worth reading in the Kameleon-2 thread. |
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solderdude
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Post by solderdude on Sept 30, 2016 20:23:15 GMT
Man, I hate to be the first to ask, but since the Massdrop Fostex TH-X00 is the only headphone I (currently) own that would be a module for me. Cool to see this bad boy come to light. There are several THx00 all having a different FR. Jude's measurements would be the most trustworthy to use. Would have to compare to a HD600 or HD650 measurement of Jude to calculate a filter for it. So far it looks like it has too much warmth (bass bleeding in the mids slightly) and some uneven treble response. The mahogany and ebony seems to only need some changes in clarity and treble quality. The purple heart could have a little less warmth as well. It does seem possible to make them tonally more balanced, the ebony and mahogany changes will probably be subtle, the purple heart slightly less subtle. These seem to be more tonally balanced versions of the TH900, less exaggerated bass and less treble. |
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solderdude
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Post by solderdude on Sept 30, 2016 20:27:20 GMT
Does the basic Kameleon come with a choice of module or is that a required additional purchase to use it? I have no idea what Jeremy plans for this. Needless to say without a module the amp does nothing (well, there will be no sound) It needs at least either a filter module, crossfeed module or a 'flat' module. |
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Post by tunkejazz on Sept 30, 2016 20:59:17 GMT
BTW, do you use the same layout for the filters that Frans used in the Kameleon and inline filters? I mean... Can I buy a filter from Jeremy and plug it my prototype? (Not that I need it at the moment!)
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solderdude
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Post by solderdude on Sept 30, 2016 21:14:23 GMT
yes, G1217 and Kameleon filter modules are interchangeable.
I made a slightly different filter PCB for G1217 amps where all the parts are on the top side.
On the current PCB some parts are on the bottom side.
Size and shape are the same though.
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oldson
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Post by oldson on Oct 1, 2016 18:36:46 GMT
i fancy 2 of these, hd650 and ah-d2000.
have i got this right................
i will need one unit/psu and 2 modules (1 for each of the above)
??
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Rabbit
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Post by Rabbit on Oct 1, 2016 18:41:12 GMT
That's right Simon. The filters just plug in to a socket.
Hd650 module is the business!!
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oldson
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Post by oldson on Oct 1, 2016 18:43:50 GMT
That's right Simon. The filters just plug in to a socket. Hd650 module is the business!! i may get 3 then and do away with my semi-diy lcd2 filter. purely to keep desktop clutter down. off topic, how are the stones now Ian? (not the rolling ones) |
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Rabbit
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Post by Rabbit on Oct 1, 2016 19:52:03 GMT
They couldn't find any!!! I had an agonising roll on the floor one night which made them wonder if I'd passed a stone and not realised.
After hospital tests though, they found one kidney draining much slower than the other. So tests for tumours followed. Nothing found so Im just being monitored in case the kidney blocks entirely.
I could have been born with a slow kidney or something is going on, but they can't see any reason for one to empty slower than the other! Weird isn't it? Pains have gone though. Took a long time.
As far as the filters go, I worry about continually changing them. Eventually, the contacts could become dodgy, so I dedicated mine to just the hd650 which is the best of the lot IMO.
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