Carver Vs. Adcom

birdyman · 24th April 2010, 03:58 PM

I have & had more than few Carer amps, ie M1.5, M1.0, PM2.0, M400a and TFM 35. Newly, I aquired used Adcom GFA 585 and Rotel RB1080 to venture out of Carver stuff.

My question is Carver uses 8 to 10 output BJT in serial Vs. Adcom gfa 585 and Rotel RB1080 uses same numbers of outputs in parallel. Carver claims high current on his amps as well as Adcom 585 and Rotel 1080 said they are too.
My self educated knowledge tells me both parallel and serial can not be right about their claim of "high current". Who is right? Can both right about their claims?

Thank you in advance for your contribution.

Zero Cool · 24th April 2010, 04:33 PM

Question this: What exactly = High Current?

birdyman · 04:42 PM

Quote:

Originally Posted by Zero Cool

Question this: What exactly = High Current?

I do not know what they "want" to mean by stating "high current" on their amps and Ads. What do you think they mean?
Is "High Current" statement just pure marketing, may be?

ontoaba · 25th April 2010, 08:13 AM

Low Current in parallel = High Current.
High Current in series = High Current
High Current = High Current
nothing wrong.

analog_sa · 25th April 2010, 08:38 AM

Don't make fun of the guy just because he has Carver amps. A bit of compassion is more appropriate.

Paralleling generally indicates that each parallel device contributes to the total current, ie if a device is rated at a max current of 10A, 10 parallel devices will be capable of 100A or a bit less in practice. A series connection, otoh, is limited by the max current of the least current-capable device. A series connection of 100A devices will be capable of 100A irrespective of the number of devices.

Bonsai · 25th April 2010, 10:52 AM

analog_SA - did you work in the SABC labs in the 80's?

djk · 25th April 2010, 12:22 PM

A Carver M1.5 can put out more than 600W/4R from (essentially) one pair of outputs.

That's 12.24A RMS from a device rated at 25A peak.

If you need to drive a speaker that has less than 4R impedance a different amplifier may be in order, say the M1.5L (designed for 2R loads).

If you need to drive your 0R25 ribbons, use a mono McIntosh MC2300.

In other words, buy an amplifier intended to drive your load.

I own some Crest CK series. In that series they make an 800W unit optimized for 70V lines (400W/12R), one for 8R/4R, and another for 4R/2R.

24th April 2010, 03:58 PM	#1
birdyman diyAudio Member Join Date: Jan 2010	Carver Vs. Adcom I have & had more than few Carer amps, ie M1.5, M1.0, PM2.0, M400a and TFM 35. Newly, I aquired used Adcom GFA 585 and Rotel RB1080 to venture out of Carver stuff. My question is Carver uses 8 to 10 output BJT in serial Vs. Adcom gfa 585 and Rotel RB1080 uses same numbers of outputs in parallel. Carver claims high current on his amps as well as Adcom 585 and Rotel 1080 said they are too. My self educated knowledge tells me both parallel and serial can not be right about their claim of "high current". Who is right? Can both right about their claims? Thank you in advance for your contribution.

25th April 2010, 10:52 AM	#6
Bonsai diyAudio Member Join Date: Aug 2006 Location: Taipei, Taiwan	analog_SA - did you work in the SABC labs in the 80's? __________________ bonsai Amplifier Design and Construction for MUSIC! http://hifisonix.com/

25th April 2010, 12:22 PM	#7
djk diyAudio Member Join Date: Feb 2001 Location: USA	A Carver M1.5 can put out more than 600W/4R from (essentially) one pair of outputs. That's 12.24A RMS from a device rated at 25A peak. If you need to drive a speaker that has less than 4R impedance a different amplifier may be in order, say the M1.5L (designed for 2R loads). If you need to drive your 0R25 ribbons, use a mono McIntosh MC2300. In other words, buy an amplifier intended to drive your load. I own some Crest CK series. In that series they make an 800W unit optimized for 70V lines (400W/12R), one for 8R/4R, and another for 4R/2R. __________________ Candidates for the Darwin Award should not read this author.

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24th April 2010, 04:33 PM	#2
Zero Cool Audio Junkie diyAudio Member Join Date: Sep 2004 Location: MN	Question this: What exactly = High Current?

25th April 2010, 08:13 AM	#4
ontoaba diyAudio Member Join Date: Nov 2009 Location: Kudus, & Malang	Low Current in parallel = High Current. High Current in series = High Current High Current = High Current nothing wrong.

25th April 2010, 08:38 AM	#5
analog_sa diyAudio Member Join Date: Aug 2002 Location: Sofia	Don't make fun of the guy just because he has Carver amps. A bit of compassion is more appropriate. Paralleling generally indicates that each parallel device contributes to the total current, ie if a device is rated at a max current of 10A, 10 parallel devices will be capable of 100A or a bit less in practice. A series connection, otoh, is limited by the max current of the least current-capable device. A series connection of 100A devices will be capable of 100A irrespective of the number of devices.

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