VDH Colibri XPP. Best Load impedance?

Thanks for your response.

I don´t know if one of you own a Colibri Platin but my experience with this Cartridge is that he is very sensitive. I own before a VDH Colibri Gold. This cartridge is not so sensitive like a Platin.

500 Ohm is the internal impendace. If I use the formel x10 you need 5k. I started this threat to find out if somebody tested this cartridge with 5k or 10k. A Platin nothing else. A Gold has for example only 38 Ohm!

The reason why is I am looking for a new PrePre. My old own is not a good match for this Cartridge.

regards

Josef

I seriously doubt that the internal impedance is 500 ohms. According to the VDH site, the various Colibri models have a resistance of 21 ohms, 36 ohms and 96 ohms. For all of these models, VDH recommends loading of 500 ohms to 1k ohms. Even 96 ohms is unusually high and 500 ohms as an internal impedance would be unprecedented (as far as I know). See the specifications on this page:

http://www.vandenhul.com/p_A03.aspx

Hi Larry,

I spoke yesterday with VDH himself he confirmed me 500 Ohm! You will not find a Platin on the Web. A Platin is made only through a special order.

Josef

XPP - Colibri plastic body, platinum coils.
Platinum is much more resistive than copper, so the 500 ohms is plausible.
You should probably try and borrow a phono stage that has unlimited loading options eg Klyne 7, that you can try out.
Alternately there are some phono stages that are current sensing and do not require loading at all - eg Goldmund PH3.
You wont find many prepre's with wide loading options as they tend to be old school with loading down for LOMC's.

For my own XPP he recommends an optimum load of 200 Ohms.
I prefer to let it wide open at 47K for both of my phonostages.
I'm using :
1). A current mode active pre-pre with Siemens CCa feeding a RIAA with RCA 12SL7 / RCA 12SN7 / Philco XXB
The TT is : Symphonic Line RG6 with Pluto 9A Prestige.

2). The EAR MC4 step-up feeding a half active / half passive RIAA with Telefunken ECC803S
The TT is : Thorens TD124 II with SAEC WE-308 SX & Zonotone Z-SHELL 10 headshell.

Speakers are : Lowther P6M Ticonal in Carfrae LBH plus an added Seas T35 Exotic Soft Dome tweeter (crossing at 2.6Khz)
Amplifiers are : Berning Siegfried (for T35), 12SL7/6J5/4300B (for P6M)

As an attempt to open up more the midrange, I'm going to substitute the 300B SET for the Futterman H3aa in order to free the P6M from the Output Transformer.
So, you can realise that for my own taste, a havier load for my XPP is out of the question as there is not needed any damping. (Even on my SAEC!)

The cables are all the new VDH 3T series (Cliff, Mountain, Cloud, Air).