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donsachs

Responses from donsachs

Spatial Audio Raven Preamp
@rav6258  Yes, it is 64 step attenuator, and the first step is 00.  It should be screamingly loud by 50, and most listening levels should fall in the 25-55 range on most systems.  Is that not the case in your system?  63 would blow the speakers o... 
Spatial Audio Raven Preamp
To follow up on what Lynn just posted.  I spent my time rebuilding vintage tube gear with modern parts, then I decided to make my own and always tried to make it reasonably affordable and be better than the vintage gear.  The Raven and Blackbirds ... 
Spatial Audio Raven Preamp
@rav6258 I looked at the Bottlehead kit and indeed it is a steal for what the price was.  I expect that it sounded very good.  They cut corners for the price point, but made some very clever choices.  Just looking at the kit photo I would expect t... 
Spatial Audio Raven Preamp
@pindac Sadly, it appears that wire is out of stock.....  Might be a fun experiment if some were available  
Spatial Audio Raven Preamp
@phono2024  I stopped shipping cords with my builds as people always tossed the cheapo one and used something better, and I was tired of the waste.  I suspect Spatial has the same policy, so you probably should enquire.  I know Lampizator doesn't... 
Spatial Audio Raven Preamp
@phono2024  sure, I am biased because I designed them, but in my system with 95 dB speakers, the Raven and Blackbird combo is dead silent idling away.  I can put my ear to any of the drivers on the speaker and barely tell the system is on.  Hiss... 
Spatial Audio Raven Preamp
@jc4659 So glad the anticables worked out for you.  Same setup I am running, with xlr from my Lampi Pacific 2 to the Raven and xlr to the Blackbirds from the Raven.  I am going to get Paul to make me speaker cables eventually when I get around to ... 
Spatial Audio Raven Preamp
Hi The Raven gain is about 13.9 dB (5X voltage gain).  The RCA and XLR inputs have the same gain.  The Khozmo volume control has a very nice log taper and you should have good adjustability in most systems.  Not touchy.      I would run XLR fro... 
Spatial Audio Raven Preamp
Imagine high speed levitating electric trains down the insterstate medians..... They would be far more efficient than planes for the 500 mile or less journey.  They have trains that go 199 mph in Japan.  Imagine just 120 mph.....  a few hours and ... 
Spatial Audio Raven Preamp
@abd1 As far as I know, Spatial still plans on going to Portland in the fall sometime.  They are busy with the launch of the new smaller S6 speaker and the newer Q3 as well, plus they are ramping up the Raven builds.   I will post here, and of co... 
Spatial Audio Raven Preamp
The Blackbird amps are indeed the next evolution of the Karna amps.  Same circuit, but updated power supplies and simpler tube choices.  All tubes are in current production with multiple manufacturers so there is plenty of choice.  The only except... 
Spatial Audio Raven Preamp
@williamdc Glad you are enjoying your new Raven.  It does seem to tick all of your boxes!  We arrived there after much experimentation and listening.   I have always loved damper diodes, so I knew we were starting there.  The transformers took a ... 
Spatial Audio Raven Preamp
When I was playing around with Cornwall IV I pulled all the cheap $4 MKP caps out of the crossover and replaced them with vcap odam.  I put path audio resistors in there as well.  The main resistor directly in series with the midrange compression ... 
Spatial Audio Raven Preamp
@curiousjim The answer is probably yes.  We have run them with 86 dB 4 ohm speakers and it worked just fine.  What kind of load is your speaker?  Can you tell me the speaker so I can look up the spec?  Unless it is some sort of terrible reactive ... 
Spatial Audio Raven Preamp
@wsrrsw Good, sounds like you are on the right road. Subs are tricky. Good luck. I am sure you are getting some nice imaging and very real sounding instruments with great dynamics. Klipsch and bass... well...... that is not their strong point (bu...