Blvdre

It's bad (also macbook + safari)

Have they behaved this was since day one? That sounds like a connection issue, maybe a bad solder joint, crimp, contaminated connector, etc. Are you willing to investigate the driver & crossover hardware/connections?

That's the pea-shooter.

Agree with Edgar and John. I work in a manufacturing environment, and its always helpful to get failed parts back for analysis. Your phone call should have also prompted them to evaluate their current stock & processes, as well. Give them another call first, to check in; they may have already sorted out the problem.

Maybe an OTL design? Transcendent Sound

I'll reinforce what Bubo said; don't purchase any old piece of gear without it having been recapped (or w/intention of DIY). That means at least every electrolytic. A friend just finished a recap/refurb of a Kenwood KA-7300, and let me run it for a few days (nice dual-mono design). I could be happy with this piece (I'm not giving up my Don Allens, though). I checked some reviews of this integrated, and one of the complaints was noise floor. Bullshit. This thing was dead quiet with my La Scalas. The problem is people are commenting on stock units. My friend said the sound quality was night and day after servicing. Refurb is a must.

Solen also makes a poly film and foil that is reasonably priced. John, I believe Solen caps are manufactured in Ontario, Canada, and distributed out of St. Hubert (just outside of Montreal). They have a french language option on their website, so that might explain the misunderstanding. Sonic Craft has good prices on AudioCap Theta film and foil caps, and I believe they ship internationally: http://www.soniccraft.com/index.php/film-capacitors-audiocap-theta-c-301_33

My suggestion would be to spend the money on music or elsewhere in your system. Your speaker cable is fine, IMO.

Fixed that for you 😅

No, I've never tried the reflex riser. I currently have a Fastlane Tractrix horn with one of Dave's aluminum CD motorboards, with the nice CNC'd transitions (don't think he offered these for long?). I've had the CT-125s installed for many years now, but they are too laid back for my old frequency-challenged ears, so I'm going to swap the old k-77s back in. maybe I'll try the DE120s at some point. I've had a few different crossovers in these; The original AA, I've built type A & Als Universals. I'm in the process of building an AP-500/Universal so I can throw the JBL 2470 mid back in. I had used it in the past with a slightly modified type A, and preferred the sound over the k-55.

You forgot my favorite, PCB Board.

My 4pis are not finshed, but will be soon. If you haven't made a decision yet, I'll offer my opinion. I've owned Cornwalls, and still have a pair of modified La Scalas (which I'm holding on to).

I'm guessing your Heresy's don't have a k-77 tweeter? If so, you could just do a swap.

Heh, just how I feel about Bourbon. I enjoy Rye (WhistlePig's our local version), but Scotch is my choice. Lagavulin's my go to.