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Carver mk II series audio amplifiers

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RichP714

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Post Thu Dec 11, 2008 12:28 am

Carver mk II series audio amplifiers

M-50tMkII.jpg
M-50tMkII.jpg (37.92 KiB) Viewed 784 times

Heavily modified Carver M-500t Mk II audio amplifier. Modifications include several internal part replacements.

Parallel power supply rectifiers, increased capacitance, enhanced voltage gain stage, higher current output transistors with 7% silver solder to name a few of the performance boosting enhancements.

5-way binding posts bring the amp into the 21st Century using 7% silver solder

Meter incandescent lamps are replaced with high output Luxeon amber LEDs

Carver M-500t mk II specifications

Rating------Stock------------------------Mk II
Power
8 ohms-----251watts <0.15% THD------395 watts <0.15% THD
4 ohms-----330 watts <0.15% THD-----420 watts <0.15% THD

At Clipping
8 ohms-----270 watts--------------------410 watts
4 ohms-----350 watts--------------------490 watts

Dynamic
8 ohms-----380 watts--------------------520 watts
4 ohms-----470 watts--------------------920 watts
2 ohms-----412 watts-------------------1214 watts


M10tMkII.jpg
M10tMkII.jpg (31.38 KiB) Viewed 785 times


Carver M-1.0t mk II specifications
Rating------Stock------------------------Mk II

Power
8 ohms-----200 watts <0.15% THD-----400 watts <0.15% THD
4 ohms-----400 watts <0.15% THD-----450 watts <0.15% THD

At Clipping
8 ohms-----350 watts--------------------450 watts
4 ohms-----500 watts--------------------520 watts

Dynamic
8 ohms-----550 watts--------------------670 watts
4 ohms-----832 watts--------------------940 watts
2 ohms-----928 watts-------------------1250 watts

The amp will be packed in a cocoon of 2" expanded polysterene foam block, and shipped insured with signature required.

A re-print of the owner's manual, along with a mk II addendum, is included.

As long as I'm alive I will repair any mk II amp sold for cost of parts plus shipping.

see the website for full details...
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TNRabbit

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(pair of) SILVER-7 TUBE AMPs

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Location: TN Native Languishing in VA

Post Thu Dec 11, 2008 5:47 am

Re: Carver mk II series audio amplifiers

Wow, not a lot of difference between the M500 & M1.0 after the Mk II treatment!

=D> =D> =D>
TNRabbit
Image

From FrankieD's lips to your ears: Sunfire - a quiet box of endless power.

Sunfire TG-IV/400~7 Amp
Carver SD/A-360 CDP
Benchmark DAC-1
Sony SACD/DVD-A
Active bi-amp: Ashly XR-1001 & 2 Rane PEQ-15s
Main: HotRodded AL-IIIs
Sub: Klipsch RT-12d
Center: Sunfire CRS-3c
Surround: Sunfire CRS-3 (x 2)

OconeeOrange wrote:"Gary likes to play it 'loud' as do I. His system begs you turn it up until you die"

RIP WIlliam B. Dibble, 1948-2012. I'll miss you my friend.
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RichP714

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Posts: 1814

Joined: Fri Oct 12, 2007 2:12 pm

Post Thu Dec 11, 2008 1:46 pm

Re: Carver mk II series audio amplifiers

Yes, they get VERY similar spec-wise. The m-1.0t mk II is a bit more efficient, having three rails to the M-500t mk II's two rails
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donwass65

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Location: Merced, Ca

Post Thu Dec 11, 2008 8:44 pm

Re: Carver mk II series audio amplifiers

Do the power meters on the M500t II reflect the actual power output or do they have to taken with a grain of salt? Also does the sonic character/signature remain intact from the original? I always liked the 500's sweet, easy on the ears sound.
-Don

Carver M500t (2). Sunfire Classic Tube Preamp, Sunfire Signature 600, Carver CT-17, Carver TX-11A, Carver AV-505, Carver TL-3220, Thorens TD320 with AKG cartridge, JBL 120TI's, Vandersteen 2Wq Sub, Carver HR 752, Infinity Primus 250's, Denon DVD2910, Pioneer SX 1250 boat anchor, plus assorted odds and ends.
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RichP714

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Joined: Fri Oct 12, 2007 2:12 pm

Post Thu Dec 11, 2008 8:50 pm

Re: Carver mk II series audio amplifiers

donwass65 wrote:Do the power meters on the M500t II reflect the actual power output or do they have to taken with a grain of salt? Also does the sonic character/signature remain intact from the original? I always liked the 500's sweet, easy on the ears sound.
The meter's are aligned to show power into an 8 ohm load; being long analog needles they will twitch to transients, but won't show an accurate reading of peak power demands. That was true before the mod as well.

The sonic signature of the M-500t is unchanged; I don't mess with the t mod circuit. The largest change is in the current sourcing ability, which the original is a bit soft on. Drums will be tighter, dynamic transients crisper, but her voice remains the same.
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Mr. M-500t

(pair of) SILVER-7 TUBE AMPs

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Post Mon Dec 15, 2008 8:31 am

Re: Carver mk II series audio amplifiers

I love the new avatar Rich. =D> =D> =D> =P~
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TNRabbit

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(pair of) SILVER-7 TUBE AMPs

Posts: 13283

Joined: Sun Jan 14, 2007 11:53 am

Location: TN Native Languishing in VA

Post Mon Dec 15, 2008 8:55 am

Re: Carver mk II series audio amplifiers

Mr. M-500t wrote:I love the new avatar Rich. =D> =D> =D> =P~


Ditto! =D> =D>
TNRabbit
Image

From FrankieD's lips to your ears: Sunfire - a quiet box of endless power.

Sunfire TG-IV/400~7 Amp
Carver SD/A-360 CDP
Benchmark DAC-1
Sony SACD/DVD-A
Active bi-amp: Ashly XR-1001 & 2 Rane PEQ-15s
Main: HotRodded AL-IIIs
Sub: Klipsch RT-12d
Center: Sunfire CRS-3c
Surround: Sunfire CRS-3 (x 2)

OconeeOrange wrote:"Gary likes to play it 'loud' as do I. His system begs you turn it up until you die"

RIP WIlliam B. Dibble, 1948-2012. I'll miss you my friend.
<<

BillD

User avatar

(pair of) SILVER-7 TUBE AMPs

Posts: 7295

Joined: Wed Jun 06, 2007 8:29 pm

Location: The west's most mid-western town, Scottsdale, Arizona

Post Mon Dec 15, 2008 12:10 pm

Re: Carver mk II series audio amplifiers

Tower of Power 8)
It should sound like it isn't there!
There is a difference between hearing and listening...
Making life enjoyable through expensive electronics.
_________________
Carver: C-4000 & C-1 preamps, PSC-60 preamp/tuner, TX-11a tuner, M-400 (2), C-500, M-500, M-500t, M-500t Mk.II, A-500x, AL-III loudspeakers (2 pr.)
Sunfire:Theater Grand III processor, Ultimate Receiver, Cinema Grand Signature 400 ~ seven, True Subwoofer Mk. II, D-10 Subwoofer
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RichP714

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Posts: 1814

Joined: Fri Oct 12, 2007 2:12 pm

Post Mon Dec 15, 2008 12:49 pm

Re: Carver mk II series audio amplifiers

I thought about Sunfire for the HT setup, but the lack of available schematics (I want to be able to work on my own stuff) drove me to it.
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Scarabeo

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SILVER-7 TUBE AMP

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Post Mon Dec 15, 2008 7:33 pm

Re: Carver mk II series audio amplifiers

Mr. M-500t wrote:I love the new avatar Rich. =D> =D> =D> =P~

The Dream Tower of Power! I want one,,,Can anything like this be done to the 1.5t?
OK I am saving for my next amp now that I know what I want.
BillD, You will be forever with us! RIP until we meet again on the other side...
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weitrhino

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Location: North Carolina

Post Mon Dec 15, 2008 7:58 pm

Re: Carver mk II series audio amplifiers

Mr. M-500t wrote:I love the new avatar Rich. =D> =D> =D> =P~



Talk about a Wall Of Sound!
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RichP714

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Posts: 1814

Joined: Fri Oct 12, 2007 2:12 pm

Post Mon Dec 15, 2008 8:11 pm

Re: Carver mk II series audio amplifiers

Scarabeo wrote:
Mr. M-500t wrote:I love the new avatar Rich. =D> =D> =D> =P~

The Dream Tower of Power! I want one,,,Can anything like this be done to the 1.5t?
OK I am saving for my next amp now that I know what I want.
I don't work on the M-1.5t, it has vertical boards packed close together so it's harder to work on; the M-1.0t is a more open layout.
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Mr. M-500t

(pair of) SILVER-7 TUBE AMPs

Posts: 6211

Joined: Fri Mar 17, 2006 10:00 pm

Post Tue Dec 16, 2008 12:01 am

Re: Carver mk II series audio amplifiers

I'd be careful of all that wait on top of that bottom 500 Rich.
Over a 100 lbs on her. The bottom screening is pretty chintzy on them IMHO.
Crush Factor wise that is. Hate to see you dead short one of them out by the screen collapsing onto the bottom of the circuit board.
I get nervous with just my three stacked up. O:)
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RichP714

SILVER-7t

Posts: 1814

Joined: Fri Oct 12, 2007 2:12 pm

Post Tue Dec 16, 2008 1:03 am

Re: Carver mk II series audio amplifiers

Mr. M-500t wrote:I'd be careful of all that wait on top of that bottom 500 Rich.
Over a 100 lbs on her. The bottom screening is pretty chintzy on them IMHO.
Crush Factor wise that is. Hate to see you dead short one of them out by the screen collapsing onto the bottom of the circuit board.
I get nervous with just my three stacked up. O:)
It's a four rail rack....each amp has L iron 'rails' from the front to back rails. The amp sits on the L, so although they look like they're stacked on top of each other, each is supported. They are naked inside, and the entire cabinet serves as the 'chassis'. Three intake fans on the bottom and three exhaust fans on top, activated by thermistor.
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BillD

User avatar

(pair of) SILVER-7 TUBE AMPs

Posts: 7295

Joined: Wed Jun 06, 2007 8:29 pm

Location: The west's most mid-western town, Scottsdale, Arizona

Post Tue Dec 16, 2008 11:52 am

Re: Carver mk II series audio amplifiers

So the tops and bottoms are off all those amps? THat should help cooling a lot :D
It should sound like it isn't there!
There is a difference between hearing and listening...
Making life enjoyable through expensive electronics.
_________________
Carver: C-4000 & C-1 preamps, PSC-60 preamp/tuner, TX-11a tuner, M-400 (2), C-500, M-500, M-500t, M-500t Mk.II, A-500x, AL-III loudspeakers (2 pr.)
Sunfire:Theater Grand III processor, Ultimate Receiver, Cinema Grand Signature 400 ~ seven, True Subwoofer Mk. II, D-10 Subwoofer
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