DIY 2011 New England

Canton, Massachusetts

October 15, 2011

Updated October 1st

DIY New England 2011 will be October 15th. We may do a number of things differently this year.

In past years we've usually ordered systems small-to-large. I'd like to change it this year. By the time we get to larger full-range systems, some fatigue has set it. I'd like to do more alternating. Mixing the order of systems can be enlightening.

One request has also been made to set the volume the same between systems. We can do this, but I'd like to put that towards the end, after we've been through each system once. This is, I think, also meant to be with the same set of tracks played for comparison and to control the volume. A good idea for direct comparisons. There's a tendency to crank up the volume with every track played.

This leads to another change. I think we've tended to play the same tracks repetitively to the point that after awhile, we get tired of them. But maybe that's just me. I'd like to have more variety up front, let everyone have more input, maybe let each person interested get at least one track of their choice with each system. Later on we can go back (as we often do) and run through them again. The "calibrated" auditioning can then be done.

Who's Bringing What

At this time I don't have much of a list. The input has been sparse as far as who plans to attend. I'll update this page as I get more feedback. Send me an email for additions/corrections.

If I get some time I may set up one or both of the M/T boxes listed below on top of the dipole woofers used in my 3-way above. I've used both at different times as part of a main system.

Auditioning Equipment

This will be the same equipment as noted below.


Before I go any further let me say BRING YOUR CDs!!! The crowd determines what is played and when, but please bring any CDs that would like. There's no guarantee of getting a lot of time on anything, but everyone is encouraged to request their preference during the day. At times the same passages are played for sake of comparison, but I'd like to have more variety of music to keep things from getting stale.

My equipment will be:

Anyone coming to the NE event who has any component which they would like to bring is certainly welcome and encouraged.

Measurement Systems

There is usually little time to measure upstairs due to the auditioning and limited space. My basement is my work area, so most measurements will be taken there. LAUD v3.0 will be available for systems that can be moved there. This will leave the living room primarily for listening sessions, but if it's not prudent to haul a system downstairs, we may try to measure upstairs when things slow down.

Again This Year

SoundEasy has a lot of functionality. I've previously been using its Digital Equalizer/Digital Filter (DE/DF) capabilities with each crossover and am now using the v17 introduction of the Ultimate Equalizer. It's really convenient to audition a design without ever building a physical crossover. It's even easier to "design" a crossover by making SPL measurements (impedance not needed), selecting the Fc and slope for each section, then runing it. As simple as that. There are other considerations, of course, but those are the basics. I still like to offset drivers to prevent the need for excessive time delays that impact the off-axis. Diffraction control also helps in the same way that it does for passive crossovers, but it's once drivers are mounted on baffles, the process is quick. So many combinations can be tested so quickly.

NEW: Snacks and Lunch

I provide some finger food and snacks to carry us through to lunch, but if you have an idea of something better than chips, bagels and veggies with dip, feel free to add to it. Maybe you want something sugar-free or low sodium, etc. There's always quite a bit left over in any case, so don't go overboard. Don't feel like you have to bring something either, in the end there's usually way more than we can eat.

We typically order out for lunch, most often for delivery pizzas, and everyone chips in. This usually works for everyone, but there are options if anyone wishes to make the trip to the end of my street to one of several restaurants. There's Japanese, Thai, Vietnamese and a newer place called "The Chubby Chick Pea" that is quick and serves shawarma and falafel wraps. They are all less than a mile away.


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