Recent content by Wayne A. Pflughaupt

AFAIK that can’t be changed. It’s auto-generated based on the SPL level of your graph. To test it, take subsequent measurements at an increased or decreased volume. Regards, Wayne

Look for the “Limits” icon above the graph, top right. “SPL Bottom” will set the graph floor. Regards, Wayne

No need for phone pictures. The camera icon at the top left of the graph will save it as a jpeg. For starters, your bottom horizontal limit is too low. Few rooms have a noise floor as low at 30 dB, and that’s the reason the blue “never stops.” I.e. it never stops because the room background...

Yeah, the VCR (JVC top-of-the-line Super VHS model) wasn’t getting much use, due to the Tivo (top left). I think it’s only use by that time was to play Disney movies for our grand-daughter. This stack was actually downsized from what we had in ’96. Here we have two JVC Super VHS machines and...

Yes, we probably met at HTF. I joined in August, 1999 and still post there some. Back then I was able to garner some attention because I could look at people’s subwoofer graphs (generated via Ken’s excellent Excel spreadsheet) and suggest filters on the BFD to improve response. Of course, a...

Yes, I remember that feature, and it was one of my favorite parts of the magazine. I even made a submission myself in March, 1997. I had a pretty impressive system at the time with 19 components (picture below), complete with custom cabling and dedicated isolated ground electrical circuits...

How did they come to contact you? Regards, Wayne

Like Sonnie, I didn’t jump on the bandwagon immediately. I had a laser disc player in 1996. I may have waited until the local video stores were renting DVDs before getting one. For some reason I don’t have a record of my system between 1996 and 2007, so I’m guessing it was probably early...

I’d agree that with your first layout (picture in 2nd post), the front L/R was problematic, but the layout in your first post looks good. The only thing I’d suggest is moving the SR speaker further away, if at all possible. I really don’t like having back speakers that close to the MLP – it’s...

Wow, that’s an antique! What does it date to, the 1980s or earlier? All the RTAs I’m familiar with from the 1990s were two-space components. Anyway – the thing is, these old hardware RTAs were all delivered with what they called a “calibrated mic.” But the mics themselves weren’t calibrated...

Sorry, I don't know anything about Equalizer APO and as such can't make a recommendation. Maybe someone else will chime in. Regards, Wayne

I only see where one filter will be useful: 250 Hz. Boost maybe 4-5 dB. Above that point, nothing needs adjustment. Below that point, none of the filters you have available are suitable. Either they are at the wrong frequency, or too wide to help a narrow problem, if that makes sense...

Welcome to the Forum! If your preamp has no HDMI input, your best bet is to use your laptop’s headphone jack. Get a 3.5mm to dual RCA splitter and connect the RCAs to an input on the preamp. Regards, Wayne

It will be tricky and not terribly precise with that equalizer. You’ll have to be able to study the graph and determine which equalizer filter you have available is the closest to what’s needed to get correction you want. If you don’t think you can do that, post the graph here and we can...

Is the SPL scale accurate? Regards, Wayne