The monobloc is a pattern boy metrological point of view
- Marantz MA-9 S2
- Data sheet
But with minimal restrictions. The stability chart displays a slight voltage drop below 4 Ohms – yet the bolide shielded inside generously with copper also by challenging boxing hardly out of step should be to bring. Finally, already its predecessor were bred MA-9 S1 to power converters like the B & W 801. Which has an ordinary efficiency (AUDIO code / AK 47) Although, according to Marantz require specifically the large bass chassis of the British box of strict control by the power amplifier.
To achieve the impressive AK by 84, Marantz engineers Of course especially the power supply of the S2: the encapsulated toroidal transformer delivers even more power, and the capacity of the capacitors was upgraded by 22000 on 33000 micro Farad. The current reservoir, Horn of plenty for particularly energy-intensive bass pulses, thus grew by more than 30 percent.
The input part of the amplifier as the precursor, also have a so-called “choke” PSU: in addition to the capacitors, a coil ensures as smooth and stable power supply. The inductance filters high frequency-waste from the power cable by the way – it looks like a low pass in this topology.
In the hearing test, however not a juror felt the need for more cleanliness in the sound. On the contrary, the Marantz amplifier enthusiasts with flawless performances that but at the same time up not the track or even smoothed worked. The metallic tart sound of the Steinway with the Bach Goldberg Variations of Glenn Gould’s piano revolutionary 1955 accelerated to the speed limit, beaded fresh as a mountain stream. Clarity and truth were recorded live, big wall (Super listening course CD 4) to the detailed, exciting event occupied colossal works such as Bruckner’s fourth Symphony under Günter.
And that, although the editorial 1000 was a speaker to the amplifier with the JBL array, on sucked the greedy each amp power. A sound artist like the Accuphase A-60 (125 points) was overwhelmed at levels of Thunder here. MA-9 S2 the Marantz monos not buckled “Te Deum” (Super listening course CD 5) even in brutal tutti inserts, even with the hundreds in Berlioz’ – it seemed formally to flourish. The Marantz amps powerful offset the slight advantage of Accuphase in terms of fundamental heat. Crashing drum beats as in the “Dies Irae” from Verdi’s Requiem (Georg Solti) put away the MA-9 S2 respectfully place casualness. That this never Bifendynamic work suffered, never tipped the presentation in the annoying, is evidence of large amplifier architecture.
Marantz MA-9S 2
Technical data and test results
|Dimensions:||per B: 45.9 x H: T: 19.8 x 45.1 cm|
|Weight:||74.8 kg each.|
|Amplifiers music signal automatic|
|Power amplifiers inputs unbalanced|
|Power amplifiers inputs balanced|
|Number of speaker connections||2|
|True sine wave power stereo 8 ohm / 4 ohm||445,0 W / 722,0 W|
|Music power 8 ohm / 4 ohm||477,0 W / 783,0 W|
|Damping factor 100 Hz / 10 kHz|
|Signal to noise ratio||108.0 dB(A)|
|Standby consumption||0 W|
|Solid Mono block that passage more sounds via XLR.|
|Sound judgment||well over 125|
|tested in issue:||2 / 07|