Free 150W SKA Amplifier Kit!

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amplifierguru

Free 150W SKA Amplifier Kit!
« on: 14 Apr 2006, 09:39 pm »
Hi All,

As a special offer to DIYers of HT and tri-amped systems I am offering a free 150W SKA (GB150D) kit to purchasers of 5 or more amplifier kits, of either the renowned GB150D or GB300D until the end of April. Here are the amps -

http://members.dodo.com.au/~gregball/guru_004.htm

These amplifiers are renowned for their low cost and great sonics -

http://www.audiocircle.com/circles/posting.php?mode=quote&p=239229

But their great versatility makes them eminently suited to multiple amp setups as the very high PSRR renders them insensitive to PS artefacts allowing all to be run from a common supply with excellent results.

Consider a 5.1 HT application -

5 x 150W (GB150D) for 8ohms using a 500VA+ PS of +/-55V and one sub amp GB300D for 4 ohms (powering 2 x 8 Ohm sub drivers) FROM THE SAME SUPPLY.
Hence over 1000Wrms of HT amplifier power for US$420 + $25 P&P, just add power supply, connectors and box!

Cheers,
Greg

amplifierguru

Free 150W SKA Amplifier Kit!
« Reply #1 on: 15 Apr 2006, 08:31 pm »
And in response to the PM's,

Yes. the free module offer applies to built modules - one free for 5 purchased. So all you will need to build is the power supply.

Another link for amp performance -

http://www.audioheritage.org/vbulletin/showthread.php?t=9021

Cheers,
Greg :mrgreen:

amplifierguru

Free 150W SKA Amplifier Kit!
« Reply #2 on: 29 Apr 2006, 09:09 pm »
Last days for this special offer on these unique and versatile amps .

If you're not feeling competent to build your own amp -

...."I recently finished a GB150D and wanted to take a moment to provide my impressions. But first, let me say that Greg's customer service is first class. This was my first project of any kind and Greg kindly answered each question and was extremely helpful. He even created additional documentation commensurate with my novice understanding.

My system is an unmodded Squeezebox 3 fed into a NADT762 receiver's analog inputs. The GB150D is connected to the NAD's pre-outs. Speakers are the Ascend Acoustics 340s and cable is Kimber 8PR.

The amplifier has been running about a week and I now feel I can attempt to articulate its attributes in my home. Let me reiterate this is my experience in my home, so please consider this is my opinion only. From the time I switched the unit on, I was struck with how quiet and tuneful it was. I let the amp run continuosly for a number of days and nights and then began seriously listening (it souned so nice out of the box that it was a chore to not just keep listening). Taking things from the bass first, I went to turn off my Adire Rava sub and just listen with the Ascends. To my surprise the sub was off. The amplifier has solid control over the bass, not only at moderate listening levels, but also at low volume. The SKA provides quick, tight, and accurate bass that was absent with the NAD. I don' tuse my subwoofer anymore for music.
The midrange and the treble are first class. I am hearing details that were absent before and find all types of music simply sound realistic. Vocals, instruments, and high notes are clearly improved over the NAD. The strange thing is I have no listener fatigue at all. I assumed with the added detail and clear highs I would become fatigued. The image is also improved. Complementing an increase in image size is a better separation of instruments. Not only is lateral dispersion better, but vertically as well.
I am happy because it is as if I built an amp and received a free new pair of speakers as well. The sound is greatly improved and I am now planning to have my SB3 modded because I feel my electronics can respond to improvements.
Greg, thanks for an easy build, unprecedented value, and sweet sound. "

- Chad, Illinois.

And here's a a retro-fit -

http://www.diyhifi.org/forums/viewtopic.php?p=9000#9000

Cheers,
Greg