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In the Forum: Audio Discussions
In the Thread: Some thoughts about bass in high-end audio.
Post Subject: Good onePosted by anthony on: 8/23/2021
Thanks for this one Romy, very interesting...it sorta ties together several things that I have been thinking about lately.
I guess I am lucky that the Bass Cannons can be run off 9w from the DSET bottom channel and from memory I get about 115dB at 18Hz once room reinforcement does its magic. One of the few benefits of a small room.
A couple of weeks ago I had a 6C33C fail on startup and short the filament which caused the filament transformer to try to do a bit of welding which melted some wires (not sure if you have ever had one fail this way - I think I should fuse that circuit). One DSET is out of commission until the transformer is replaced so I have been listening to my surround speakers as mains. This has been quite educational.
The surrounds are JBL708P which are a Class D DSP bi-amplified two-way with compression driver/waveguide and 8" front ported woofer. In terms of what they are I think they are a decent speaker and are marketed as "master reference monitors" by JBL. I purchased these because they are an all-in-one box and I did not want to be tempted to build fullrange Melquiades for surrounds: just put them on the wall and plug in the power cable and interconnect. Since the valve failure I did a bit of searching and apparently they are the "perfect speaker" according to some reviews (literally says that on one forum where they are measured) but needless to say that after Macondo/Melquiades I feel I am truly slumming it with the JBL's. Even though this speaker is more capable than most similarly sized speakers in terms of power response, directivity and spl, all metrics that the research says leads to better sound, they are still missing a lot compared to Macondo. One thing I will say about them is that it sounds more or less the same wherever you are in the room...that even power response really does a good job of making the reflections sound like the direct sound, which may be a benefit when used as reverb injection.
Anyway, all this makes me wonder about speaker quality for the revereration injection and whether there may be something to gain with larger speakers at the rear, not that I can fit them, and not that I have trialled anything yet. Rerurn to Romy the Cat's Site