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In Reply to: RE: IIRC Hammond power transformer.... posted by Ivan303 on November 01, 2009 at 08:56:30
Hello Ivan303!Thanks for putting up with us for this year-- I appreciate having you.
I learned a lot in Room 2024.
Here are some observations that may assist others looking to demo at Hi-Fi shows, and may help you at home also.
(1) Room size and power required: The old room at past RMAFs required the exact same setup be run at 1-to-3 o'clock on our attenuator. The new larger room required 10-11 o'clock on the same attenuator with the same source voltage-levels going in.
(2) The new, larger room used FAR LESS power! This was due to ROOM GAIN-- and some unwanted room reflections. So, we had power-to-burn.
(3) What went askew dept.:
(A) Speaker placement was too wide-- made happen by my video monitor being between the speakers. I guesstimate about 12-14" too wide. For a good read on this, get Jim Smith's new book "Get Better Sound". You'll like it.
(B) Musical sources were by Pioneer DVD and long, complex cables from my roommate's input to our system. Neither gave good performance. WHERE was our trusty music-server? In the shop. I'm building a new one with all-new software and hardware-- so far, I love it!
(C) No one had time to fix the rooms many problems-- acoustically.
BUT-- this room CAN sound good. The usual demo artist would first "Kill" the room with various sound absorbers, etc., but I wouldn't. Who likes dead, politically and tonally correct "flat" sound? Nope. The way to the light in this room is to spend enough time in it to understand it. You work WITH its many quirks and use them to advantage. That takes time you might not have.(D) Something went right! On Sat. evening, we used the video and ran some good DVD musicals. It was a treat if you got to do it. No one who had come in ever left until it was all over. One visitor said "this is the most fun I ever had at an audio show".
And so it was. I had a great time also, but you'll have to blame ME for the sound-- not the room, and not the amps or speakers.
I'll be BACK!
---Dennis---
Edits: 11/19/09Follow Ups:
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