Modwright PH 9.0X Tube Rolling Question


I recently acquired a used PH 9.0X phono preamp and
I want to upgrade the Russian 6922 tubes. Anyone have
any experience with this particular preamp? I'll be looking
for NOS tubes.  

ericsch

Showing 1 response by pindac

I have been fortunate to have been demonstrated in the UK a

Modwright PH 9.0 'SE' and not the 'X' Model.

This attached is the sale add for the Phonostage I was demonstrated.

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Modwright Instruments SWP 9.0se Phono stage for Sale
You don't find these coming up for sale very often.
I am the original owner of the phono stage and bought new from Angelsound Audio about 7 years ago.
It is excellent condition and has performed faultlessly over it's entire life with me.
The phono stage is a 230V model and comes with original box and manual.
It is a MM and MC phono stage,
Front panel has ON/OFF, MUTE, Mono, MM/MC switches
There are 2 sets of DIP switches on the rear panel that adjust for the cartridge loading 50 Ohms to 47k Ohms
Tube Complement: (2)6C45's, (2)6N1P's, (2)5687 tubes
Output Impedance: ~600ohm
Frequency Response: 20Hz –– 50Khz +/-1dB
Weight: 27 lbs. (32 lbs. shipped) - approx 15kg shipped
Dimensions: 17"W x 12"D x 4"H

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There has been a few years past now, but do recall it had a very warm sonic, that was very relaxing and I felt perfect for adding a colour to Chicago Blues Recordings.

I am not aware if the 'X' Model is with the same sonic traits.

If there is a Bloom with the 'X' model, and a it is wanted to be heard with a leaner sonic trait. My experience of the Amperex Bugle Boy's - 'Orange Text' has shown these are quite un-valve like when compared alongside a range of valves.

What is good to know is that there are tube options to produce a Warm Bloated Sound, and the Antithesis of this being quite lean.

I use Early 60's E88CC's in two devices. The choices made following quite a few periods of Tube Rolling, are Siemens and Halske in a Phonostage and Mullards in a DAC. 

Is it not strange that different Valves are selected from each other for different circuits? Tube Rolling does deliver a few curve balls.