georgehifi
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Posts posted by georgehifi
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Instrol had a second shop in Manly Corso back in the 80's which had a this massive JBL driven by Fuzz Linear 700's, one Saturday morning they took it out into the middle of the Corso and filled the Corso with sound from the Darley Rd (Church end) to the beach end (Steyne Hotel), it was something to hear https://tinyurl.com/2cmp3oyh
Cheers George
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12 hours ago, robmid said:
I would suggest auditioning my system first, if you get a chance.
As I said and laid out above in this system of his and the way he wants to use it, a passive no matter what the cred, will not be an good impedance match the way the OP @JeffH wants to use it.
Cheers George
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31 minutes ago, F M said:
I am currently using an Asus Xonar essence one which has a speaker volume control nob.
Yes that'll be fine it has a nice low 100ohms output impedance at all frequencies, and with output volume control, using the 2 x dual rca's I linked to above. then set your volume where you need on the V3's. and use this as the master.
So your up for $10 for the dual rca's and another set of interconects.
Cheers George
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11 hours ago, F M said:
My question: what are some options to connect the rca input from two amplifiers to the output of my dac?
You need a volume control on your dac if it has one, so you have a "master volume control"??
If so all you need is two of these on the L&R outputs of your dac to both Fosi V3's https://tinyurl.com/266929bt
Then you can set the Fosi's volume to the loudness you want on that pair of speakers and use the dac volume as the master for all.
This will work if your dac has a low output impedance, most do save for tube ones.
Cheers George
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14 hours ago, Addicted to music said:
Usually audio gear that measure well do not sound good because most ears are accustomed to badly engineered products, our brains preferred certain amount of distortions, and when that's added we think its "better". it isn't until you play something that's well recorded live you realise what's going on.
Yes I can see it that way, but I say some ears instead of most.
Also I don't do audio gear to sound "gentler" for rubbish recordings, which then in turn "reins in" the magnificents of good recordings because of it being gentler.
Cheers George
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21 hours ago, JeffH said:
Any recommendations on a passive pre-amp that just offers volume with minimal colouration of the music?
None, trouble is your going to ask the source output/passive preamp to drive very long interconnects to the analog amps inside each M2 speaker, that are only 10kohm input impedance.
This is not happy a environment for the source through a passive pre, or even an active tube pre, unless it's a "white cathode follower" output stage, then that's not a "true tube pre" sound so many tube guys say.
You need active solid state pre with a low output impedance, say <100ohms output impedance
Cheers George
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1 hour ago, Hawkeye said:
I have a topping e30 dac
Yes it apparently has volume control, I would try direct into the Fosi Audio V3 monoblocks if you get them, and they have a "gain switch" (hi or low) on the back (circled in red) so you'd switch them so the volume is up high on the E30 for the loudest that you listen.
https://fosiaudio.com/pages/monoblock-power-amplifier-v3-mono
Cheers George
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Very good subjective review of them on how it sounded on his system.
As for the mods they are just input opamp buffer differences, they do all sound different, I prefer none at all if your dac, like mine has the gain/voltage and volume control to do it.
Cheers George
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1 hour ago, Famo said:
I have a pos vibes preamp but it's missing the heater power supply.
You can make your own if you have the skills, if not Kimil Electronics up here in Sydney will make one up for you. Give him this and your Pre.
Cheers George
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1 hour ago, Satanica said:
Dynamic range was limited to 3,000 Hz
Really knew their audio spec speak back then.
Should have been "frequency response limited to 3,000hz (3khz).
(but then they are car salesmen aren't they any BS will do)
Probably because the tracking weight was >50 grams and the poor stylus couldn't vibrate any higher than 3khz as it was digging up vinyl partials, wonder how long a record lasted before you heard both sides at once
Cheers George
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21 hours ago, Hifi delight said:
Excellent sounding cd player from Denon with remote
Forgot to mention @Hifi delight that this is an SACD as well. That'll get it sold very quick
DENON DCD-1500AE DSD1791 – DXP6001AF – CXD2753R SACD HOP-1200R
Cheers George
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You could try a pair of these, for just $139usd each, they certainly have the measurements.
Cheers George
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36 minutes ago, Hawkeye said:
Could these be bridged into mono’s and use two to drive Gale 401’s with more “ease”
I would never bridge an amp, all you get is more watts, and the inability then for it to drive harder loads than it did when not bridged. (it turns good amps into PA amps)
Cheers George
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15 minutes ago, DaveyB said:
Thanks George, in that case, would you recommend a solid power amp (like an Electra) or starting again with a capable integrated.
Keep the pre and try some Class-D amps, had alook there's not much on SNA classifieds save for a March NC1200 Hypex based one, I much prefer the NC500's but they've all been sold.
There are these from the maker, just over the border, make sure you get a warranty with them even though he's been doing them now for a while.
Cheers George
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Just now, Steff said:
Here is the curve for the latest iteration
Be nice to see the -phase angle graph overlay with that (like Stereophile show) to tell the whole story to see what the EPDR impedance is going to be like.
Cheers George
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GregWormald:
The 240 puts out 50w into 8 ohms and 85 into 4 and a phone call to VAF should get you some info about their recommendations, or PM
There is no impedance/phase curve graph to be found anywhere on these VAF i66's.
But from what I'm looking at, these speakers need amps "that have a pair", not 50w@8ohm and then only 85w@4ohms
OMore like at least 100w@8ohm, and doubling to 200w@4ohms at least. or better still 200w@8ohm and 400w@40ohms
Cheers George
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3 hours ago, Zaphod Beeblebrox said:
Even a small DC output from the DAC
Don't think that possible Trev, as it has a transformer coupled output.
Cheers George
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9 minutes ago, THOMO said:
I would be wary of anything that ASR rate.
Not talking subjectively.
It's not "their rating", it's how it measures up objectively using very good equipment that's being used, even better than some manufacturers have, and how it rates again objectively against other amps. (not subjectively)
Cheers George
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5 minutes ago, THOMO said:
Probably the biggest bargain in amps I have come across.
Yeah, for the money put them on the mids and highs and a 1000w Behringer or similar on the bass.
Cheers George
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A new "monoblock" kid on the block, with stunning "objective" results for the $$$. 100w @ 8ohm and 200W @ 4ohm.
Even better "objective measurements" than the Nord One Hypex NC500 poweramp.
But speakers with 2ohm loads like the Wilson Alexia's could worry them, so not for everyone. https://shorturl.at/fwAQV
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1 hour ago, Lil Caesar said:
I must concede that I like to play loud but usually 75-85dB at most.
and even more for me, a must for full orchestral or good rock they need to be played at levels like you'd hear them live.
Going to the Opera House Concert Hall in July to hear Saint-Saëns’ Organ Symphony with the SSO, long time since the 10,244 pipes of the Grand Organ have been individually cleaned/tuned up, and to play this Saint-Saëns’ Organ Symphony will be something physically and mentally shattering.
https://www.sydneyoperahouse.com/building/preserving-grand-organ
https://www.sydneyoperahouse.com/sydney-symphony-orchestra/2024-season/saint-saens-organ-symphony
And before that in June another film score concert with the SSO doing their dynamic thing.
https://www.sydneyoperahouse.com/sydney-symphony-orchestra/2024-season/music-john-williams
Superman: March
Jaws: The Shark Theme
2002 Olympic Winter Games: Call of the Champions
Raiders of the Lost Ark: March
Star Wars: Princess Leia's Theme
Home Alone: Somewhere in My Memory
Jurassic Park: Theme
Star Wars: The Phantom Menace: Duel of the Fates
Schindler's List: Theme featuring Concertmaster Soloist
Saving Private Ryan: Hymn to the Fallen
Harry Potter and the Prisoner of Azkaban: Double Trouble
Harry Potter and the Philosopher's Stone: Hedwig's Theme
E.T.: The Extra-Terrestrial: Flying Theme
Star Wars: The Force Awakens: The Jedi Steps & FinaleCheers George
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20 minutes ago, Steff said:
Meta vs. non meta differences between models (arguably) modulated by listener preference (some pro meta, some not)
Just talking to Art Vandelay, who has a pair of LS50 Meta and a pair of B&W 800 D3!!! is very interested in this review/measurements of the R11 Meta. I ask what difference is "Meta" v non Meta, he said beside a little re-work on the xovers, the main thing is the coaxial drivers spider is better on the Meta v non Meta.
Cheers George
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Looks as though your "non Meta" have the same dip at 1.2khz but also again at 2-3khz and are a little bit more ragged up high, so yes DSP'ing would be beneficial on these. Still wonder if less is more on the Meta though.
Cheers George
Non Meta
Meta
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27 minutes ago, Lil Caesar said:
Happy owner of the original R11
custom target curve
I take it a slight 3db boost at 1.2khz to flatten the dip they have, and again at 30hz to extend it down in the sub-bass a bit more?
It sounds/looks like they are "almost perfect" the way they are without any complex DSP'ing.
Did you get a chance to listen direct to the amp/s without any DSP'ing in the signal path, to hear if "less is more" sounded more natural or less clinical??
Cheers George
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Passive Pre-amp recommendation?
in Stereo Amplifiers & Pre-Amps
Posted · Edited by georgehifi
Bit like these revolutionary? opamp voltage rail "pass transistors"