M100 Specifications and design

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_scotty_

M100 Specifications and design
« on: 28 Feb 2004, 04:03 am »
Curt, I was wondering if you could share some of the details regarding the construction of the M100. I would like to know it's slew rate, HF 3db down point, output device type, ie bipolar or MOSFET and if MOSFET is it using vertical or lateral devices. I also wanted to know if the monoblock operated in bridged mode to achieve its power and current rating.
 These amps appear to quite a bargain for their cost and prompted my questions about their performance parameters. Any information would be appreciated,  Scotty

Curt

Re: M100 Specifications and design
« Reply #1 on: 28 Feb 2004, 09:36 am »
Quote from: _scotty_
Curt, I was wondering if you could share some of the details regarding the construction of the M100. I would like to know it's slew rate, HF 3db down point, output device type, ie bipolar or MOSFET and if MOSFET is it using vertical or lateral devices. I also wanted to know if the monoblock operated in bridged mode to achieve its power and current rating.
 These amps appear to quite a bargain for their cost and prompted my questions about their performance parameters. Any information would be appreciated,  Scotty


Hi Scotty,

It's always good to visit our website,  here is the MB-100 spec page:
http://www.ird-thailand.com/products/mb100/specs-mb100.htm
I think this has almost everything you are looking for.

It is not a bridged circuit, it has lots of power, and it sounds great. We support them from owner to owner and the cost of repair (when needed) is very, very low. Their almost bullet proof.

I get 160W extended music peaks with 8 ohm loudspeakers and 240W peaks with 4 ohm loudspeakers. We confirm these peaks via oscilliscope.

MB-100s are priced well because we build them in high quantity. This monoblock may be one of the best amplifier values on the market today. Great for bi/tri-amping 2ch and also 5.1 HT applications.

We have stock in Charlotte NC.

_scotty_

M100 Specifications and design
« Reply #2 on: 1 Mar 2004, 02:51 am »
Thanks Curt, I'm not sure how I missed that page.
Is the 3Hz-195kHz+or- 3db figure at 1 watt or at 100watts into 8ohms and is there a closer tolerance spec for slew rate than >10V/us.
Thank-you, Scotty

Curt

M100 Specifications and design
« Reply #3 on: 1 Mar 2004, 07:21 pm »
I tested the frequency response at half (50W) and full power, no change.

The Slew Rate is usually better than 10V/us and controlled inside the output IC. I wouldn't want to give a tighter spec.

BTW slew rate (in an amp) by itself is rather meaningless unless you also consider the output rail size (highest Vp possible). Using both these figures you can find where slew distortion will set in for that particular amplifier.

_scotty_

M100 Specifications and design
« Reply #4 on: 1 Mar 2004, 10:15 pm »
Curt, Thank-you for your reply the info is appreciated.
                   Scotty