LSA Voyager GAN Amplifier

Thanks for your input on the impedance question.  I use the Rane ME 60 equalizer as a small gain stage with EQ.  This SS source has a low output impedance, I forgot, maybe 100 ohms.  The ratio of input impedance to output impedance would be 380 for 38K input, or 1500 for 150K input.  Both ratios are very high, way over the minimum 10, so I wonder whether there would be any audible or technical difference between 38K or 150K.

@viber6 With something like the Rane (which is really meant more for PA and recording use) you *might* have slightly less noise if the input impedance is lower. Otherwise the Rane itself will not interact in any way with load impedances like that. IOW no worries.

Definitely check out the other GaN threads: LSA Voyager is only $3000, and benefits from simple tweaks like replacing the rubber footers with inexpensive springs, weighing down the top, or removing it as I am about to do, as I have with my Oppo 105 and EVS 1200 class D amp
hth

Tweak1 not for him

Go over to diyAudio check out what abraxalito is all about, he’d design and build his own if the GaN’s weren’t smd and guide/show others (including the bothers in arms here) how to do it right.

atmasphere,
Thanks, confirming what I thought.  I bought the Rane ME 60 when I walked into a pro audio store in 1995.  My recordings of my orchestra on a small stage of a medical school hall were dead and dull.  Neither the conductor nor I was happy.  After using the Rane in the recording to boost HF and cut some bass, we were happy.  I then inserted the Rane into my audio system for regular commercial recordings, using it flat as just a line stage.  It demolished the Spectral DMC 10 gamma line stage for openness and clarity.  Recently I bought a tweaked Rane with vibration damping by poster mrdecibel.  It was even more open than my original Rane.  He agreed with me that the Rane is more transparent than many audiophile line stages priced around $10K.  Only his passive Luminous preamp beat the Rane for transparency.

Since my listening preference is very close as a violinist performer, I want to hear my recordings with that perspective.  I use the Rane with HF boost above 8 kHz, which does a great job as a facsimile of reality.  Believe me, it is most important to use judicious EQ by ear, which is a bigger factor than the relatively small differences in line stages.  Many audiophiles have closed minds and mock pro audio equipment and concepts.
 

Many audiophiles have closed minds and mock pro audio equipment and concepts.

The Rane is an opamp-based circuit and as long as they are not demanding too much gain out of any particular opamp it should perform really well. Rane stuff is designed by actual engineers :)  I use one in my keyboard rig, but when I've used the mic input its proven that its very transparent.