#4111
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#4112
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When incorporating a sub into one of my systems, I set up my trusty Radio Shack analog SPL meter and then play a Stereophile CD of test tones. I usually run the scales several times - from 20Hz to 1000Hz, while adjusting my crossover point and volume levels. This can never be perfect, due to room/speaker/amp effects. I usually aim to set the sub's volume level at close to an average of 1dB below my main speakers, as I like the bass to be there, but not overwhelm.
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#4113
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#4114
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I got lucky with a cheap "sub." Picked up a little Energy "subwoofer" which has an 8" driver and about a 100 watt amp. It is really more of a woofer, as it doesn't do much below 40Hz. $40 off of Craigslist.
I use it with my Inspire SE EL84 amp, which produces almost no low bass and little mid-bass. When I set my preamp to filter sub-100Hz from going to the SE EL84 and setup the sub as described earlier, at -1dB from my average output from 100-300Hz, it does a very nice job of filling in the lower bass. Also this frees my SE EL84 from even seeing the low bass, which enables it to play louder and cleaner. In my small system using Focal Aria 906 bookshelf speakers (approx 88dB efficiency), the 4wpc Inspire does okay when using the sub. Without the sub, not so much, easily driven into clipping on low notes. I have a pair of more efficient monitors, DIY speakers using full range Fostex FE206E banana pulp drivers. These play louder but I don't like them. Should sell them off. |
#4115
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Got Inspired all right!
Yo, does anyone actually have any luck reaching Mr. Had through his eBay channel? I gave up after trying a few different ways with no response or replies over 90 days. Originally, I wanted to buy one of his newer custom build spec Inspire amps for my smaller speakers - oh well. Since I could not reach him, decided to try and buy one of his former amps for my big speakers from back in the day when he was at Cary. Now have the Cary V-12R, wow. It's a keeper - with NOS tube and more updated coupling cap upgrades, this baby is a keeper, sounds amazing with the right speakers in Ultralinear or Triode modes. Thanks Dennis, wherever you are
Last edited by Masterlu; 08-28-2017 at 09:54 AM. |
#4116
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Last edited by Musica Amantem; 08-28-2017 at 08:45 AM. |
#4117
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http://www.audioreview.com/cat/ampli...2_1583crx.aspx Of course, this is a power monster compared to the Inspire line. BTW, Dennis used to reply quite promptly in the recent past, so I could not tell why he has not replied to you yet. Congrats on your clever purchase. |
#4118
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Thanks Music Amantem.
Appreciate the link. Some of the base V12 and V12i units in the review were okay, and once they came out with the "V-12" with the fixes, then it became a contender according to a few folks I've met since that keep them in rotation and managed to hang on to their R models. And, picking up a nice 12/12i can be upgraded to the V-12R. I'm still playing with the different UL/Triode modes and NOS tubes. Doing some of the more modern coupling caps, hexfreds, bypass caps here in a few weeks to see if I can take it to another level. Still have a hankering for a nice little low watt SET amp too down the road. Seen a few of the DH amps come up on eBay, but I would only consider it if I could send it in and get it checked, upgraded by the creator himself. Thx. |
#4119
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That amp reminds me of the Mesa "Baron", a strange trip into home audio by the Mesa people. Which also makes me wonder if the maker of my fave guitar amp, a Burriss "Royal Bluesman" (it's blue), could, or would, make a stereo amp. This guitar amp is a small "lunchbox" style head that's a hand wired Class A single ended masterpiece of 18 watts…even has a spring reverb behind the face plate…maybe Dennis could make a guitar amp as I refuse to plug a guitar into the HO (maybe I should try…I can do without reverb for a few minutes).
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#4120
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After trying 50Hz and 70Hz High Pass Harrison FMOD's in my system I have removed them from the signal chain. Testing with a SPL meter and the Rives Audio Test CD, I found that the FMOD's lowered the input signal to my amp at frequencies above the FMOD crossover point.
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