yes, and the Primaluna EVO 200 comes from the book of Revelations! lol

Nice! Interesting speakers, nice set up. Enjoy!

Heresy's are always going to be a little light in the bass department, even the IVs (which are better than previous models) no matter what amp you use. Upgrading from the 100 to the 300 would be a very expensive way to get a little more low end. Get a REL t5i sub, and set the level very low and adjust crossover to taste. for around 500-600 bucks you'll get a huge improvement in low end. Otherwise maybe move up to the Forte, or KLH model 5, that will make a much more dramatic change to the bass than going up the PL line. A good way to test if it's the speakers or the amp that should be changed is to try swapping your PL for a solid state amp that has good control over the low end just to see if it makes the difference you are looking for. If you still aren't getting the low end you want from a high current solid state amp then you probably want to add a sub or get different speakers. If the SS amp DOES get you the bass you are looking for then maybe a PL300 would do the trick. Also try using the 4ohm taps. I had evo100 integrated with heresy II and yeah the bass was not great but with a rel sub it was a great sounding system. Using the evo100 with my JBL l112s I got really good, fast, controlled bass. Eventually I got rid of the PL and switched to a line magnetic amp with kt88 tubes and that really did fill out the low end even with the Heresy. Overall it felt like a much better pairing at least to my ears and in my room.

Depends on your speakers

bill, i know i'm speaking up for him but, without question, kevin would take a PL over a mac any day!

I own a pair of the EVO-400's set up in a Horizontal Bi-Amp config. It drives my large towers very well . Their mid range is fuller and the bass response has more impact than when I ran just a single PrimaLuna. I am a bass-head, I like EDM, Taiko drumming, and Organ music. So having something that is capable of high current, and enough power in reserve to handle the peaks is a must. As far as a Vertical Bi-Amplification is concerned? I would say it depends on the speakers and the type of music you are listening to. If you have something where the load is consistent between the Mid-Range and Tweeters and the Woofers I do not see that as problematic. However, owning speakers that have that two 12 inch woofers each, the majority of the load would go to the amp that is running the low-end so in my system, the load balance would be off so it would not be an advantage. For Vertical I would hook up a 250 watt plus SS beast and own a single PrimaLuna to run the mids and upper end. As far as strain on the amps I am not hearing it. All that changes is matching the taps to the correct impedance. These amps have a very robust power supply that give a lot of headroom. MY speakers really like the amount of current they deliver. I used to mate them with a pair of $28k SS mono-blocs. At over twice the cost of a pair of PrimaLunas, these pair of arc welders, did not mate as well as the evo400's. The mid-range was more recessed and the bass tubby. The tonality of the PrimaLuna's mid-range was far more accurate and as already mentioned I found their bass, to be cleaner, faster, and a lot tighter than the SS amps I was using.

Not in a tube amp. In a PrimaLuna the output impedance drops in half, and the increase in sound quality is shocking. . There is a special circuit designed to allow you to do this. That's why other companies don't do it.

@@upscaleaudio why wouldn't other companies want you to buy another one of their amplifiers?