Why Don't We See More High Current Electronics?


It seems that in looking around for amplifiers and integrated amps that double their power as the impedance is halved (high current), they seem to be in a minority. Is it just more costly to build good-sounding high current electronics and the market demand for them just isn't there, or what?
foster_9

Showing 9 responses by foster_9

So far the efficient Class D amps I've tried have not presented the clarity, bass weight, and refinement with the (somewhat difficult load) speakers I own now. (I need some power and current damn it!). So I continue to look at Class AB designs. But I'm not interested in a 125 lb behemoth either; just a reasonably priced high current amp(less than 3k ) that doesn't take 2 people to lift and isn't old as the hills and in line to be re-capped soon. An amp with good sonics too.
Mapman, thanks for the sentiments. The beat goes on. I'm still looking for the high current amp in the used market that better matches my speakers and fits my amplifier profile:

clarity with bass weight and refinement
Not extremely heavy: 50-90lbs at most- bad back
amp w/higher input impedance is required for my Cary SLP 05
high current - doubles down - 100-300 wpc
not over $2k
known for quality sonics
Mirage OMD28 speakers
Tvad, your advice and experience would be missed if you refrain from posting in these forums. I hope you'll reconsider.
Yes Atmasphere that was a typo. I meant an amplifier input impedance of 50k Ohms - 100k Ohms.
Well, I suppose the original answer from my thread was answered. Can any of you electronics experts recommend a high current amp? That

doubles down
100 watts minimum (200 watts or more preferable)
input impedance- highish 50-100 ohms (for a tube preamp)
quality sonics (known for clarity, powerful bass, neutral, transparent, without leanness)
$2k or less on the used market
I appreciate the discussion of amplifier topology and performance. It's informative for electronics novices (like me).

An amp with high input impedance is important

not "dry" or "lean"

lively with bass weight and clarity.

An issue is my Cary SLP 05 preamp has fairly high output impedance into the lower frequencies. My speakers are Mirage OMD 28 /Impedance 6 Ohms nominal /3.5 Ohms minimum 87db efficient /Crossover Point 550 Hz and 2.5 kHz
Thanks Unsound and Ngjockey. Unsound, at the time you referenced the Threshold it had a Sale Pending- I saw it before and it was Sale Pending for quite a while. I would likely have jumped on it.

Ngjockey:

From Stereophile's mearsurements of the SLP 05:

"The SLP 05's output impedance is specified as a usefully low 400 ohms. However, I got significantly higher values for the unbalanced output of 1500–1600 ohms in the midrange and treble, rising to 3400 ohms at 20Hz, with similar if slightly lower figures for the balanced output."
Weseixas: Luxman B-1000F monos Price: $55,000/pair- well yes, they are high current and new... I'll give you that.