Arkless Electronics
Trade: Amp design and repairs.
I've copied an amalgam of the posts in "Trade Announcements" and deleted the second post in that thread as "Trade discussion" is probably more appropriate and allows fishies to discuss it and ask relevent questions
The prototype is sounding bloody marvellous and I'll be making a demo unit available for audition probably early in the new year. Price TBC but in the £1000 - £1500 area.
MC only.
This uses the transconductance principal, previously used (to the best of my knowledge) only by "The Paradise" (no longer available) and Pink Triangles very rare "The Pip", which was made only in small quantities and many years ago now. (It's possible/probable that top of the range LFD stages use the technique but I've not been able to verify this).
I expect this to set a new standard for performance at the price point and indeed at 2 or 3 times the price
Sounding stunningly good here feeding an Arkless Electronics class A power amp via a passive pre.
It's a two box phono stage with the linear regulated PSU of course taking up the second box. Further linear regulators are utilised within the actual phono stage, a pair per channel.
It is entirely discrete (other than an op amp in the DC servo which is not in the signal path), 24 transistors per channel are used to allow the main signal path to have just 4 transistors and 2 resistors up to the output buffer stage, which is of course all discrete.
All the amplification is carried out in just one stage.
It has passive RIAA EQ, which due to use of the transconductance principal is entirely free from the headroom problems usually seen with passive EQ in solid state phono stages.
No feedback whatsoever is used.
Loading for different MC cartridges is by loading plugs, as in all Arkless Electronics phono stages. Whilst not as convenient as DIL switches it allows an infinite range of loading options rather than just the usual 3 - 5 values and gives a much more reliable large contact area.
A bake off against a "full house" Paradise the other week was very interesting
The prototype is sounding bloody marvellous and I'll be making a demo unit available for audition probably early in the new year. Price TBC but in the £1000 - £1500 area.
MC only.
This uses the transconductance principal, previously used (to the best of my knowledge) only by "The Paradise" (no longer available) and Pink Triangles very rare "The Pip", which was made only in small quantities and many years ago now. (It's possible/probable that top of the range LFD stages use the technique but I've not been able to verify this).
I expect this to set a new standard for performance at the price point and indeed at 2 or 3 times the price
Sounding stunningly good here feeding an Arkless Electronics class A power amp via a passive pre.
It's a two box phono stage with the linear regulated PSU of course taking up the second box. Further linear regulators are utilised within the actual phono stage, a pair per channel.
It is entirely discrete (other than an op amp in the DC servo which is not in the signal path), 24 transistors per channel are used to allow the main signal path to have just 4 transistors and 2 resistors up to the output buffer stage, which is of course all discrete.
All the amplification is carried out in just one stage.
It has passive RIAA EQ, which due to use of the transconductance principal is entirely free from the headroom problems usually seen with passive EQ in solid state phono stages.
No feedback whatsoever is used.
Loading for different MC cartridges is by loading plugs, as in all Arkless Electronics phono stages. Whilst not as convenient as DIL switches it allows an infinite range of loading options rather than just the usual 3 - 5 values and gives a much more reliable large contact area.
A bake off against a "full house" Paradise the other week was very interesting