The design of the Mola Mola Kaluga mono power amplifier is based upon the most sought after class-D technology: Ncore’. Unprecedented low noise, distortion and output impedance combine to produce a neutral sonic signature. Just music, glorious music. For instance, the two supposedly unassailable strongholds of class-A amplifiers are linearity and output impedance, at high frequencies.

Two graphs are attached showing the output impedance as a function of frequency and the output spectrum in a high power (400W), high frequency IMD test. In both cases the Mola Mola Kaluga mono power amplifier outperforms any power amplifier, regardless of technology, operating class or asking price, of which such test results are available.

The design of the amplifier board is a Mola Mola in-house design. The audio circuitry of the Kaluga is trimmed to the bare bones and board-to-board connectors are eliminated in favour of soldering star-quad cables directly into the circuit board for the cleanest, lowest impedance connection possible. The input stage is implemented on a separate circuit board that uses the same discrete buffers as those found in the Makua. The output filter sports monolithic capacitors whose dielectric stability is reflected in an impressively neutral and poised rendition. The days of compromising power efficiency for audio performance are finally over: the Kaluga delivers definitive audio performance with power efficiency thrown in as a bonus.

Specifications

Balanced and unbalanced input, selectable by switch
2 pairs of Furutech binding posts. Bi-wired directly to the amplifier PCB using Kubala-Sosna cable.
Trigger input (3.5mm jack)
400W/8 ohm, 700W/4 ohm, 1200W/2 ohm
Gain: 28dB
Unweighted Signal/Noise Ratio: 128dB
Distortion (THD, IMD): <0.003 % (all frequencies and power levels)
Input Impedance: 100kohm
Output Impedance: <0.003 ohm (DF>4000), all frequencies
Bandwidth: >50kHz
Dimensions (W x H x D) in mm: 210mm x 110mm x 335mm
Weight: 7kg