
Atma-Sphere + ProAc Studio 130 = Great Sound!
How very often great speakers are let down by either mismatched or poor quality electronics? Take for instance, the Studio series speakers from ProAc. OK, so its the poor man’s ProAc (the ProAc Response series is the premium range), but there is no reason ProAc would come up with anything less.
We set up the ProAc Studio 130 floorstander driven with Atma-Sphere MP3 preamp and M60 monoblocs. Source is the current favourite Marantz SACD player of the moment – the KI Pearl by Ken Ishiwata. Guess what? This system rocks!
A little brief about the system: The Atma-Sphere amplifiers hail from USA, the company is better known for their OTL transformerless tube amplifiers. MP 3 mk 3.1 is the entry level preamp from Atma-Sphere (the dual chassis MP1 is the flagship). Atma-Sphere can custom this preamp to your needs – a basic line only preamp (from S$6500) all the way to a phono version with optional components upgrade – power supply regulation, V-Cap Teflon, Caddock resistor package and even a low output MC transformer.
The preamp features balanced input/output, star ground, zero feedback, 23 position stepped volume control build with 96 resistors. Build to last a lifetime; the MP 3 is eminently serviceable and ready for future upgrades! The MP 3 has been a consistent Editor’s Choice award for 2008/2009 by The Absolute Sound!
The M60 monoblocs (S$8600 a pair) is built like the S30 stereo except it comes in two chassis – eight 6AS7 output tubes per channel (the M30 has four output tube per channel) delivering a conservative output of 60 watts per channel in pure Class A! The pure triode based M60 features ultrawide frequency response of 1 Hz to 100 kHz, something not easily achieved through typical transformer coupled tube amplifiers! But that’s where the Atma-Sphere come on its own – it uses their own patented direct-coupled (OTL) output stage – no output transformers! Hence the extended bandwidth.
The ProAc Studio 130 (S$2800) can be deemed as the floor standing version of the Studio 100. Employing the same drive units, the larger cabinet enables the Studio 130 to extend the bass end to 25 Hz (the bookshelf Studio 100 goes down to 35 Hz). The reflex port of the Studio 130 is at the base of the speaker cabinet, making the speaker much easier to place.
And the Marantz KI Pearl? Read more of this remarkable player elsewhere in this blog.
The system is now on demo at the shop, do drop by for a demo!








