That's not a great option why make something that doesn't work well with all stats.
If you want a cheaper kg amp look at the kgdt or the cheap version of the kgsshv that spritzer has been working on for years.
Or the srx plus, or the current feed back amp that kg did recently.
Not all kg amps break the bank
Edit :: I know the srx plus isn't a kg amp. I just realized that isn't clear in the above post. Credit jiml.
Buy used, or put yourself into it (work harder, make more money, and DIY) or both. Nothing good comes easy.
I saw a KGSS here for around $1100 used, why not just grab this amp and be happy? I saw several used KGST for around $1500 as well...and that's a great price for such amp. Otherwise, just be happy with the 323S or the 717 if you can buy one used for around $800 - 900. Don't forget that casework alone isn't cheap either.
Let's also not forget the Octave V2 from spritzer, and as quoted above consider used amps. So even with no DIY capability, you can build a Stax system with an SR-007/SR-009 for a similar or lower cost than a flagship dynamic/planar magnetic system, and these systems will be competitive. But yeah if you want to take the SR-007/SR-009/SR-009S to the point where it completely outclasses all non-electrostats then you'll need a much more expensive amp.
In other news, I'm using a Chord Mojo as a DAC instead of the Hugo 2 until my Denafrips Venus arrives. As expected, the SR-009 + KGSSHV Carbon is extremely revealing of the source. Compared to the Hugo 2, with the Mojo I'm hearing reduced transparency, softer bass and attack, lower quality and recessed treble, sound stage and imaging took a bigger hit than I was expecting. Pretty much everything is noticeably worse and duller. Especially for metal.
Much of that transparency, resolution, impact, airiness, sound stage, and imaging gets flushed down the drain. It's still far more transparent than any non-electrostatic system I've listened to but yeah... this is kind of lame haha. It's breaking my heart. Such a big difference, the SR-009 really is a microscope. My super positive SR-009 review featured on the front page here? It wouldn't have been nearly that positive if I only had the Mojo.
I'm not surprised but it's nice to finally experience this; if you want 100% from your high end Stax system, you can't cheap out on the source. With the Mojo, a lot of the magic I was hearing is lost compared to the Hugo 2. Can't even imagine what something like a Chord DAVE would do. But the Mojo makes me not want to listen to this system at all anymore (and don't get me wrong, it's great for the price).
If I end up preferring the Hugo 2 to the Venus then I'm moving to a Hugo 2 TT and perhaps getting the Hugo M Scaler eventually and calling it quits. Though I see many of you have favored R2R DACs with Stax, and the Venus looks like a very impressive one so I have high hopes.