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#1
Posted to rec.audio.pro,rec.audio.tech
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Amps with digital input
Dirk Bruere at Neopax wrote:
Does anyone do amplifiers with direct digital inputs? Ideally in the 500-1kW range. Thinking of using Powersoft, but they seem to do a A/D first. |
#2
Posted to rec.audio.pro,rec.audio.tech
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Amps with digital input
Dirk Bruere at Neopax wrote:
Thinking of using Powersoft, but they seem to do a A/D first. I don't see any way to do it without doing an A/D first, unless you go the PWM Class D route, which is an ugly thing. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#3
Posted to rec.audio.pro,rec.audio.tech
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Amps with digital input
Scott Dorsey wrote:
Dirk Bruere at Neopax wrote: Thinking of using Powersoft, but they seem to do a A/D first. I don't see any way to do it without doing an A/D first, unless you go the PWM Class D route, which is an ugly thing. --scott But there must be a way of doing (say) SPDIF to class D via DSP without an analogue stage? -- Dirk The Consensus:- The political party for the new millenium http://www.theconsensus.org |
#4
Posted to rec.audio.pro,rec.audio.tech
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Amps with digital input
On Tue, 22 Nov 2005 02:15:01 +0000, Dirk Bruere at Neopax
wrote: But there must be a way of doing (say) SPDIF to class D via DSP without an analogue stage? Check out the BOZ and TacT amps. Made for stereo and HT applications but they take S/PDIF inputs. http://www.bozaudio.com/ Kal |
#5
Posted to rec.audio.pro,rec.audio.tech
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Amps with digital input
Kalman Rubinson wrote:
On Tue, 22 Nov 2005 02:15:01 +0000, Dirk Bruere at Neopax wrote: But there must be a way of doing (say) SPDIF to class D via DSP without an analogue stage? Check out the BOZ and TacT amps. Made for stereo and HT applications but they take S/PDIF inputs. http://www.bozaudio.com/ Powersoft are going to clean up when they do their version, given these prices. -- Dirk The Consensus:- The political party for the new millenium http://www.theconsensus.org |
#6
Posted to rec.audio.pro,rec.audio.tech
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Amps with digital input
On Tue, 22 Nov 2005 03:19:31 +0000, Dirk Bruere at Neopax
wrote: Powersoft are going to clean up when they do their version, given these prices. Mebbe, mebbe not. I don't think the BOZ/TacT products are burning up the market. Kal |
#7
Posted to rec.audio.pro,rec.audio.tech
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Amps with digital input
Kalman Rubinson wrote:
On Tue, 22 Nov 2005 03:19:31 +0000, Dirk Bruere at Neopax wrote: Powersoft are going to clean up when they do their version, given these prices. Mebbe, mebbe not. I don't think the BOZ/TacT products are burning up the market. At around $4000 a piece I expect not. Powersoft can do a 1kW amp with digital input for around $400. -- Dirk The Consensus:- The political party for the new millenium http://www.theconsensus.org |
#8
Posted to rec.audio.pro,rec.audio.tech
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Amps with digital input
Dirk Bruere at Neopax wrote:
Kalman Rubinson wrote: On Tue, 22 Nov 2005 03:19:31 +0000, Dirk Bruere at Neopax wrote: Powersoft are going to clean up when they do their version, given these prices. Mebbe, mebbe not. I don't think the BOZ/TacT products are burning up the market. At around $4000 a piece I expect not. Powersoft can do a 1kW amp with digital input for around $400. Opps - analogue input, converted to digital at 24bit 96kHz. -- Dirk The Consensus:- The political party for the new millenium http://www.theconsensus.org |
#9
Posted to rec.audio.pro,rec.audio.tech
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Amps with digital input
On Tue, 22 Nov 2005 03:29:56 +0000, Dirk Bruere at Neopax
wrote: Kalman Rubinson wrote: On Tue, 22 Nov 2005 03:19:31 +0000, Dirk Bruere at Neopax wrote: Powersoft are going to clean up when they do their version, given these prices. Mebbe, mebbe not. I don't think the BOZ/TacT products are burning up the market. At around $4000 a piece I expect not. Powersoft can do a 1kW amp with digital input for around $400. But, even in the $4K range, they are not going like hotcakes. Besides, in the boutique market, $4k is not a real deterrent. The analog-input amps in my main room, at the moment, run from $2K to $13K. OTOH, I'd love a choice of digital-input power amps to hang on to the digital outputs of my Meridian preamp/processor. Kal |
#10
Posted to rec.audio.pro,rec.audio.tech
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Amps with digital input
Dirk Bruere at Neopax wrote: Scott Dorsey wrote: Dirk Bruere at Neopax wrote: Thinking of using Powersoft, but they seem to do a A/D first. I don't see any way to do it without doing an A/D first, unless you go the PWM Class D route, which is an ugly thing. --scott But there must be a way of doing (say) SPDIF to class D via DSP without an analogue stage? I think TI have some driver chips that take a DSP signal directly. Graham |
#11
Posted to rec.audio.pro,rec.audio.tech
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Amps with digital input
Dirk Bruere at Neopax wrote: Kalman Rubinson wrote: On Tue, 22 Nov 2005 03:19:31 +0000, Dirk Bruere at Neopax wrote: Powersoft are going to clean up when they do their version, given these prices. Mebbe, mebbe not. I don't think the BOZ/TacT products are burning up the market. At around $4000 a piece I expect not. Powersoft can do a 1kW amp with digital input for around $400. The THD performance of the powersoft amps isn't that great. Always room for better. Graham |
#12
Posted to rec.audio.pro,rec.audio.tech
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Amps with digital input
Dirk Bruere at Neopax wrote:
Kalman Rubinson wrote: On Tue, 22 Nov 2005 03:19:31 +0000, Dirk Bruere at Neopax wrote: Powersoft are going to clean up when they do their version, given these prices. Mebbe, mebbe not. I don't think the BOZ/TacT products are burning up the market. At around $4000 a piece I expect not. Powersoft can do a 1kW amp with digital input for around $400. Yes, but will it sound any good? I am not a fan of any of the class D stuff so far, but I'm willing to listen. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#13
Posted to rec.audio.pro,rec.audio.tech
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Amps with digital input
"Scott Dorsey" wrote in message ... Dirk Bruere at Neopax wrote: Kalman Rubinson wrote: On Tue, 22 Nov 2005 03:19:31 +0000, Dirk Bruere at Neopax wrote: Powersoft are going to clean up when they do their version, given these prices. Mebbe, mebbe not. I don't think the BOZ/TacT products are burning up the market. At around $4000 a piece I expect not. Powersoft can do a 1kW amp with digital input for around $400. Yes, but will it sound any good? I am not a fan of any of the class D stuff so far, but I'm willing to listen. --scott The Outlaw Audio 200wpc monoblocks switch from conventional ps to digital switching above 60wpc, and sound high-end and effortless at all volumes I can stand to listen to (have them in an all-Thiel-full-range) 5.0 system.. But except on orchestral peaks and perhaps my Al Jarreau SACD which reaches into the 35hz range with plenty of power, I may not be pushing them above the 60w range. Don't have the details in front of me, but given your interest in technology you might want to look into what they are doing.. |
#14
Posted to rec.audio.pro,rec.audio.tech
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Amps with digital input
On Tue, 22 Nov 2005 11:38:57 -0500, "Harry Lavo"
wrote: The Outlaw Audio 200wpc monoblocks switch from conventional ps to digital switching above 60wpc, and sound high-end and effortless at all volumes I can stand to listen to (have them in an all-Thiel-full-range) 5.0 system.. That hardly makes them digital amps and certainly not suitable for a digital input. Kal |
#15
Posted to rec.audio.pro,rec.audio.tech
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Amps with digital input
"Kalman Rubinson" wrote in message ... On Tue, 22 Nov 2005 11:38:57 -0500, "Harry Lavo" wrote: The Outlaw Audio 200wpc monoblocks switch from conventional ps to digital switching above 60wpc, and sound high-end and effortless at all volumes I can stand to listen to (have them in an all-Thiel-full-range) 5.0 system.. That hardly makes them digital amps and certainly not suitable for a digital input. Sorry, thought Scott was referring to digital-switching power supply amps. My bad. Harry |
#16
Posted to rec.audio.pro,rec.audio.tech
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Amps with digital input
Harry Lavo wrote:
"Scott Dorsey" wrote in message Yes, but will it sound any good? I am not a fan of any of the class D stuff so far, but I'm willing to listen. The Outlaw Audio 200wpc monoblocks switch from conventional ps to digital switching above 60wpc, and sound high-end and effortless at all volumes I can stand to listen to (have them in an all-Thiel-full-range) 5.0 system.. Yes, but they aren't class D. They're just a conventional analogue amplifier with a switching supply. I'm not a fan of switching supplies either, but that's a somewhat less hazardous kettle of fish. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
#17
Posted to rec.audio.pro,rec.audio.tech
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Amps with digital input
On Tue, 22 Nov 2005 06:12:34 +0000, Pooh Bear
wrote: Dirk Bruere at Neopax wrote: Scott Dorsey wrote: Dirk Bruere at Neopax wrote: Thinking of using Powersoft, but they seem to do a A/D first. I don't see any way to do it without doing an A/D first, unless you go the PWM Class D route, which is an ugly thing. --scott But there must be a way of doing (say) SPDIF to class D via DSP without an analogue stage? I think TI have some driver chips that take a DSP signal directly. What's a "DSP signal?" Do you mean SPDIF? And while I'm posting, what chips are these? Graham |
#18
Posted to rec.audio.pro,rec.audio.tech
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Amps with digital input
Ben Bradley wrote: On Tue, 22 Nov 2005 06:12:34 +0000, Pooh Bear wrote: Dirk Bruere at Neopax wrote: Scott Dorsey wrote: Dirk Bruere at Neopax wrote: Thinking of using Powersoft, but they seem to do a A/D first. I don't see any way to do it without doing an A/D first, unless you go the PWM Class D route, which is an ugly thing. --scott But there must be a way of doing (say) SPDIF to class D via DSP without an analogue stage? I think TI have some driver chips that take a DSP signal directly. What's a "DSP signal?" Do you mean SPDIF? And while I'm posting, what chips are these? I forget offhand if it takes spdif or I2S ( adc output ) http://focus.ti.com/docs/prod/folder...t/tas5086.html Graham |
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