Lab Gruppen amps IPD1200 and IPD2400 - diyAudio
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Old 22nd January 2014, 08:49 AM   #1
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Default Lab Gruppen amps IPD1200 and IPD2400

Hi,

Do someone knows those Lab Gruppen Power amps:

IPD1200 (2X300W/8ohms)
&
IPD2400 (2X600W/8ohms)

Do they use AB-class, H-class or D-class?
Is the cooling noisy (in personal home environment)?

I would like to use it in my home, on a 3 ways active JBL system (18" 2268H, 8" CMCD and 1.4" PT horn).

Since the sensitivity of the mid and HF parts are #108dB/W/m, I expect the amps noise to be low enough in order to be not audible at 1m distance.

Thanks in advance

Massilia from Marseille, France
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Old 22nd January 2014, 01:13 PM   #2
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Quote:
Originally Posted by Massilia View Post
Do they use AB-class, H-class or D-class?
D.
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Old 23rd January 2014, 07:48 AM   #3
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Up!

Any other informations/experiences with these amps?

Thanks in advance
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Old 23rd January 2014, 07:54 AM   #4
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It's a class AB stage with floating switch regulators. Their patent.
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Old 23rd January 2014, 09:22 AM   #5
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Thanks!

Do you use these amps, what about the sound quality (considering an audiophile usage, not PA)?
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Old 25th January 2014, 11:19 AM   #6
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Your speaker system needs only 50-100 W. I think noise will be the problem. BTW: I have visited the factory near where I live,
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Last edited by peranders; 25th January 2014 at 11:23 AM.
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Old 27th January 2014, 07:06 AM   #7
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OK thanks.

I know I do not need many electrical power for my system.

I am interested by those Lab Gruppen amps because they build high quality products for a reasonable price.
And I do not want D-class for my system (which is an audiophile one).

Not so easy to find medium power very high quality amps: either it is a professional one (exhibiting very high power, fan cooling, sometimes D-class), or it is a HiFi esoteric very expensive...
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Old 27th January 2014, 09:40 AM   #8
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You can still buy good quality, small to medium power amplifiers from the usual Japanese manufacturers or buy known good, used equipment or even better - become a DIY and design/build your own.

Don't rely on internet chat and industry opinons that are often extreme or over-generalised about products that won't suit you. Listen to real stuff where possible and decide what you (and your wallet) like best.

FWIW, stage and PA amplifiers are about the last type of product you need to have in your home. They could be the world's best quality electronics and build quality at very low cost but they are designed to work at max. power, not trickling 1 or 2 watts to domestic speakers. They will work but they will be way out of their intended range of operation and likely not sound anything like hi-fi quality.
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Old 27th January 2014, 11:16 AM   #9
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Thanks Ian.

For the moment I use home made well studied (simulation), good schematic with large power supply and decoupling, amplifiers units. From 2X60W Rms to 2X 250W Rms (tri-amplified system).

It sounds well, and measurement results are very good (electronic and loudspeaker system). No problem with it.

But as I have only little time today to spend for my sound system, finite products could be interesting for future improvements.

Regards
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Old 27th January 2014, 12:05 PM   #10
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I would consider MC2 Audio amps, they are equally suited for PA, studio, clubs or home use.
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