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203.14.52.46
Has anyone ditched their A.C. power and run their tuner on battery supply.
I started to do this many years ago but accidently damaged one of the chips and ended up binning the tuner.
Would there be any point to doing this (sound quality wise)as I have a good signal and a quiet A.C.supply, but you know......once you've heard what batteries can do with preamps, amplifiers,DAC's etc, you get the itch to try.
my tuner is an old simulcast rcvr, rebuilt and upgraded, but with the power amps OFF!
And my amplification chain has 3 very large PSU's.
I am a convinced BIGGGGG PSU guy these days.
Earthing matters, too.
Warmest
Timothy Bailey
The Skyptical Mensurer and Audio Scrounger
And gladly would he learn and gladly teach - Chaucer. ;-)!
'Still not saluting.'
http://www.theanalogdept.com/tim_bailey.htm
I definitely agree with the whole big idea, as in big transformer with big tank caps (and some little ones too) but would add that low noise and low impedance regulation certainly will bring alot to the table as far as good supplies go. Its really hard to beat an appropriately spec'd lead acid battery bank but a top notch designer can probably beat the low impedance part and come very very close on the noise.
G'day Timbo........yeah, I agree, there is no such thing as ''overkill'' when it comes to power supplies - AC or BATTERY......I've heard the difference!
On the net, ALTMANN AMPLIFIERS (B.Y.O.B : ''bring your own battery'')has an interesting say on running his mini class d amp on battery. He mentions that a fully charged battery has ''explosive dynamics''compared to one that has it's amp rating down.
http://www.mother.of.tone.com enjoy!
After a few bad runs with trying to get amplifiers on batteries and having then go weird or blow up on me, I have decidec to go back to my SCOTT LT110 valve tuner.
I know for certain that it sounds fantastic...........don't know why I bothered going down the solid state route?!
I once had an octave eqauliser, and then two 1/3rd boxes, and a Phase Linear Autocorrelator, and an SAE 5000 declicker.
I eventually got rid of them, all.
;-)!
Warmest
Timothy Bailey
The Skyptical Mensurer and Audio Scrounger
And gladly would he learn and gladly teach - Chaucer. ;-)!
'Still not saluting.'
http://www.theanalogdept.com/tim_bailey.htm
HEY!!!!........that's all good stuff man!............and you got rid of it?????!!!!!
Why ELSE?Positioning spkrs properly and listening pretty much in the near field is a lot cheaper, and does less damage, than processing does. Don't forget my main reason for audio as a hobby is classical European music which was until the romantic period based around and sustained by church music.
To be satisfying for me the music making in the space has to be coherent, so I can hear the art happening in real time. So, real stereo recordings are central hence my definite views about that.
To me gear matters so that it helps, and for me 'display' is - huh? beyond sheer UGLY, I mean!
And, that is it. If digital were better and I had the money, a truly good AtoD box and DSP BOX just MIGHT get considered.
OR a lot more room treatment.
My gear now? click below.
Warmest
Timothy Bailey
The Skyptical Mensurer and Audio Scrounger
And gladly would he learn and gladly teach - Chaucer. ;-)!
'Still not saluting.'
http://www.theanalogdept.com/tim_bailey.htm
Edits: 08/12/09
Love your system..........you ARE ''a serious scrounger'' LOL!
Gotta get back in to vinyl.
Het TIMBO.......I've got a couple of old Philips, ex ABC transcription turntables. One I have the motor, platter removed, and the motor shaft turned for the correct diameter to run 33&1/3 r.p.m.Just got to put it all together.
Do you know this turntable?.....I've seen and come accross a few over the years. They were originally idler wheel drive, but all the ones I've seen were stuffed.
I have a battery-powered amplifier (30 watt Red Wine Signature 30.2), that's pretty good but not up to my 28 watt 845 based valve monoblocks. It's Class D to allow reasonable battery life. I have battery powered FM Tuners in my car and boat.I have never understood why, in this day and age with very effecient circuits, all hi-fi (except possibly power amps) isn't battery powered. People spend daft sums of money on mains filtering and power cables when they could just link up to a nice clean 12 volt battery. They last for years and can easily be provided with an auto-recharge setup that comes on as soon as you switch off the equipment, as done by Red Wine Audio,
Peter
Edits: 07/30/09
Peter, I totally agree. My first experience with battery power was with a teac CD player that was modified to run on batteries.
There is no way on earth that anyone could prepare me for the sound that was going to eminate from this player compared to the stock, but well made A.C. power supply.
There is no comparison - period. I will be bold enough to say that the reproduction of music with batteries is life changing - ''realism'' ''musicality''and ''air''start to actually really mean something and not just some statement from a hi-fi magazine reviewer's stereo typed bag of words.
You potentially stand to gain quite a lot, depending on the tuner. Removing any sources of EMI or power supply noise will only increase SNR aka allow for getting out/pulling in farther. A more robust design will be more immune to the issues which come with AC to DC supplies and so will benefit less however.
Thanks Ugly.
I don't really need any more selectivity or sensitivity, just curious on how the sound quality (sound stage, imaging, tonality etc) will be affected.
The reason for this is that I heard on the grape vine that there was once a battery operated McIntosh MR78 that was made(or modified for battery use) but never went in to production as a battery powered tuner.
It's sound was truly amazing apparently.
Anyone know more about this beast?
Anyone?????..................
There was a project of Richard Modeferri (sp?) who developed the RIMO filter used in the MR77 and MR78 and worked on them. I think it was based on a MR78 as I remember a discussion in an interview he did about his time at Mc. He is a consultant at Audio Classics so you can try him there.
I'd think it would be an interesting project but using most of the later tuners probably would yield only something equal to an average analog from the golden age of SS tuners. So you'd need to go to that period to really get a reasonable return I'd surmise.
Thanks Brian.
I'm about to run a S.S. intergrated amp with batteries (cheap 6v lantern style - 12 of them)after hearing what happened when I ran the amp on +/- 12v sealed lead acids (1/4 of the voltage required).
Cellist Yo Yo Ma was in the friggin room with me....I swear!.....the result was downright scary!
As I listen to a lot of FM,I have a small old tuner that's easy to modify/hot rod on a 12v supply. So I thought .....why not?
Well, I managed to get a chip amp (Gainclone) up and running on battery supply. Details are on the AMP/PREAMP FORUM.
As the results were so damned spectacular, the battery tuner is going ahead as planned.
The tuner I have in mind will be easy to convert, but I am concerned about it's quality as it is part of a cheap compact record player/receiver unit made in China. As is, the sound is not shockingly bad.....quite the opposite in fact when connected to a decent pair of efficient speakers. If the amp is bypassed at the tuner signal is tapped at the line level point, it may be worth a look?
The other tuner I have is a digital Sansui, nothing special, but good sounding also.Problem is the power supply has multiple voltages in two places (dc and a couple of a.c.? points) so it's a lot harder to try on battery power, especially without a schematic.
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