Bobby's Dad's thread....

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pennysdad

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#1
OK, seeing as I'm such a bad influence at some of the threads here, I just thought I'd start a NEW thread where it just didn't matter wot the hell I said. (as long as it's PG-13 of course, but I guess soon enough even this thread will end up banished to the Man Cave, simply because of the company I keep. (I won't mention that Nav fella's name of course.)
So, occasionally, something might be on my mind, so I'll throw it out there to see wot happens.

Anyway, today, I finally had enough of all this mega power type amps and finally went back to my old trusty T-amp.
I thought, well, I've got pretty efficient speakers, then why not? (The T-Amp for those that don't know, is this (to put it technically) itsie bitsie thingie that puts out about 6 or 7 Watts at around 20% distortion, BUT, don't let that fool you. Measured today on my trusty ol' analyzer, that comes in at 90dB at 3 metres, and that's not too shoddy for wot it is. (I was exaggerating about the distortion of course, although to some of my audiophile friends, that's pro'ly wot it would sound like to them, but to put it simply, I don't care!)
The T-Amps (which I think are sort of a Digital thing, correct me if I'm wrong anybody,) are quite the cult thing that have been around for a while with some forever trying to miniaturise them into the most smallest case. (usually something the size of a cigarette packet, for those of you who still remember wot they are.)

Well, it's done. Just finished plugging it into my JBL 4313B's and using a tiny tiny little 12AU7 DIY preamp between my (only) 18 Bit AMC DAC (it's an oldie and a cheapie too) and running off my iMacs digital o/p playing .flacs.

Well, it works.

As I live in an apartment building (that is just totally useless acoustically, eg, you can hear everyone at all hours), it was pretty important that I could get above the background noise, but not make it bad for anyone else, and the T-Amp does the job just perfectly.

So, out go the Phase Linears, Crowns, Horns, J-Bins, Mid boxes, Subs and everything else..... (for now.)
Thinking of all the money I'm about to save on my power bill, I think I'll go and buy a holiday house on that island I've been dreaming about.

Anyway, I guess that means no more Jumbo Jets landing at 4am just to get the neighbours to shut up, or Spitfire Fighters doing overhead low level passes and no more Steam Trains pulling out of the station also at a most inappropriate hour of the night pranks. (the beauty of this building is that you can do these things and no one can tell from which apartment the noise is actually coming from.) If you lived here, it wouldn't take you long before you would do the same, so don't judge me too harshly. LoL.....

That's it. That's all that's on my mind at the moment. I'll just end up by saying, it was fun talking to myself, and I'm sure I'll have more to say to myself shortly......

:laughing9:
 

Elite-ist

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#2
I like to hear of members' decisions on changes to their systems. It's a counterpoint to all the bigger-is-better syndrome. You have to decide what fits your floor plan and listening pleasure. I like to hear all the musical detail when listening to my favourite albums, CDs. But, there are times when I do like to play it loud just to get the feeling I am there. You would almost need two complete, independent systems to accomplish that.
 

pennysdad

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#3
I like to hear of members' decisions on changes to their systems. It's a counterpoint to all the bigger-is-better syndrome. You have to decide what fits your floor plan and listening pleasure. I like to hear all the musical detail when listening to my favourite albums, CDs. But, there are times when I do like to play it loud just to get the feeling I am there. You would almost need two complete, independent systems to accomplish that.
Thank you Joe! Honestly!
I've been of the same opinion myself when discussing exactly the same points you mentioned.
Sometimes I get so frustrated, when some people just don't get it.
I too, like to feel the music. After working 'live' for so many years, it was really difficult to get my 'fix' of the SPL's I'm normally used to. So I built a scale reproduction at home with lots of big amps and speakers, and it was AWESOME. But, it had to run hard to get the same feel.
On the other hand, sometimes you just don't want it shaking the floors and ceilings, so I tried to scale that down to something that would keep me happy below 90dB (@ 3 metres which is how far my speakers are from my listening position). That was my target, and now it's done, and it still has the capability of exciting me no-end, even at the most quietest levels. I can relax now. Of course, you have to pick music that's appropriate to the reduced SPL.
.... and so I have multiple systems depending on my moods, but I'm happy to say, I finally found a formula with existing components that I have that works at such a low level.

;)
 
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8991XJ

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#4
I put a little dual 12AU7 preamp in the system on regular occasions. An early Foreplay I with a couple big caps dangling on the side with a bypass cap strapped on for good measure. I replaced the caps in a friends tube pre and these big and bypass caps were now extras. Make the FP sound good.

Interesting moves with our system. I understand the tube pre being better than the IC-150. There is info on the web about updating the 150 but since you are moving on...maybe you can get good money for it and go a different direction.
 

pennysdad

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#5
I put a little dual 12AU7 preamp in the system on regular occasions. An early Foreplay I with a couple big caps dangling on the side with a bypass cap strapped on for good measure. I replaced the caps in a friends tube pre and these big and bypass caps were now extras. Make the FP sound good.

Interesting moves with our system. I understand the tube pre being better than the IC-150. There is info on the web about updating the 150 but since you are moving on...maybe you can get good money for it and go a different direction.
I couldn't sell off my 150..... It's home is here, like everything else here.
This place is a black hole. Whatever gets sucked in here never sees the light of day again.....
I keep thinking that I should look into upgrading the Crown on Goggle, but then I always get side tracked, and then I forget. :(
 

pennysdad

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#7
Talk about draining!

I've just spent the last couple o' hours Goggling the subject of upgrading the IC 150, and I'm exhausted. Sooooo much reading!!!
The problem is, that so much of the info is dated, and since those mods were made, there have been updates again due to the ever changing availability of even better components.
So far, I've gathered that the power supply needs upgrading as do the OP IC's.
There's also the tone circuitry that can also do with changes, but I'm not too concerned with that, as I don't use 'em anyway.
There is also an update to the phono input which seem to be minimal.
Now if I can just find the latest definitive parts list, and a local supplier, (Melbourne Australia), that'll do small orders, I'll be very happy.

Look at that clock again. Almost bed time!
(Better go and freshen up the Kitty litter for the night first....)
 

pennysdad

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#9
Well somethin' was missin' with the 'new' mini setup, so I added a JBL B380 sub running off 'arf of my remaining D150, and now all's much better. LoL.

I was thinking, maybe I could bi-amp the 4313's and run a T-Amp for hi's and my other one for the lo's as well as the sub off the Crown....
Tri-amp? Hmmmmm..... Why not.
..... but which x-o's to use? The VFX2's or the JBL DSC260, or even some BSS FD360's that have become neglected.
Afterall, it's not as if I'm an 'audiophile', I'm just a Sound Guy (retired), so I guess anything'll do. Heh heh heh....

Looks like it's getting bigger again... (OMG, another Freudian slip)

Back to talking to myself a little later.
Off to the shop.
 
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laatsch55

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#10
Got some pics of those EC's ?? And do you have a setup to dial em in?? We could all use a lesson in tri-amping.
 

pennysdad

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#11
Got some pics of those EC's ?? And do you have a setup to dial em in?? We could all use a lesson in tri-amping.
I'll try and organise something after my shopping trip.
I think I'll go with three Crown VFX2 crossovers, as that's just too easy, but I'll have to dig up a bunch of patch leads first.
The BSS need to have a couple of their cards modded for the right x-o points (2x 800Hz) which of course are the only cards I don't have!
But it will be done sometime within the next 12-24 hours Lee.
.... and the DSC280 is just a pain to set up with it's tiny LED display and a million pages to scroll thru'. Wot were they thinkin' when they designed THAT?
The Crown are pro'ly the worst of the lot, but most easy to put together quickly.
 

pennysdad

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#12
Set up for 2x 800Hz as my Sub has it's own little black box (BX63A).

I send my main signal to a DBX119 then to the BX63A, then the lows off that feed the D150, and the highs go the VFX2 which then feeds the two T-Amps (Hi and Lo).



.... and now it's raining! I guess the shopping will have to wait. :(
 
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pennysdad

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#14
What's the 119 do?
It just clamps it all down for late night TV listening....
You know how ads are always so much louder than the programme you're watching or if the police sirens get too loud or the bombs start going off and all the shooting, at 3am. That sort of stuff. Just auto rides the volume.
 

pennysdad

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#17
An auto-attenuator?? Or compressor -limiter??
both the same thing in my book....
Now I know you can go into great detail as to how they are so different Lee, but the end result is the same, be it one or the other, and that is to squash the crap out of it before it wakes up the neighbours. :laughing9:

Here is the bigga pitcha....



What's not included is the 'other' pair of J-bins and horns that are in storage. :(
 

NavLinear

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#19
both the same thing in my book....
Now I know you can go into great detail as to how they are so different Lee, but the end result is the same, be it one or the other, and that is to squash the crap out of it before it wakes up the neighbours. :laughing9:

Here is the bigga pitcha....



What's not included is the 'other' pair of J-bins and horns that are in storage. :(
You're making my head hurt - well maybe it's not you but all the same...
 
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