Mola Mola Ossetra Monoblock Power Amplifier - Class D Audiophile Amplifier - Pair
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Standard delivery within 2–5 business days
In the years gone by since the original release of the Mola Mola Kaluga power amplifier, we have been working on further improvement of our class D technology. With the Mola Mola Ossetra we have made another significant step in our Proprietary, Mola Mola Trajectum, amplifier technology.
The design of the Mola Mola Ossetra amplifier started from a blank sheet, redesigning every aspect of the amplifier and extending its capabilities beyond the highest expectations.
On the power supply side, next to a significant noise reduction we improved both dynamic and continues output power. Combined with the vastly increased current capabilities of the amplifier output stage, it makes this amplifier able to drive practically any load.
For the Ossetra we designed all new discrete class “A” gain stages, which create most of the gain needed in this high feedback amplifier design. These gain stages are designed to have high open loop bandwidth, individually tailored to their specific tasks in the loop filter. With these new gain stages we have been able to change the gain structure of the entire amplifier without any ill effects. Thus allowing us to optimise noise and distortion performance of the complete system. The resulting amount of feedback around the power stage is where the real difference is.
The Mola Mola Ossetra is a full-bridge power amplifier design, the full-bridge output makes the amplifier design fully balanced from input to output.
For the Mola Mola Ossetra we designed all new discrete class A gain stages. Using these new gain stages enabled us to revise the gain structure of the entire amplifier. This results in exemplary noise and distortion performance of the complete system.
The amplifier bandwidth of over 100kHz, keeps the frequency response absolutely flat within the audio band. The minimal load dependency establishes absolute consistency, irrespective of loudspeaker load.
The input stage distortion is below our current measurement threshold at approximately -150dB (~0,000003%), ensuring an immaculate power stage performance.
Key Features
PERFORMANCE350W / 8Ω | 700W / 4Ω | 900W / 2Ω |
I/OBalanced and unbalanced input, selectable by switch |
DIMENSIONS & WEIGHT215 mm (W) × 110 mm (H) × 340 mm (D) |
Specifications
| Specification | Details |
|---|---|
| Output Power | 350 W (typ) @ 8 Ω |
| Gain | 22 / 28 dB (user selectable) |
| Input Impedance | 300 kΩ (typ) |
| Output Impedance | <1.5 mΩ max (DF = 5000) |
| Signal-to-Noise Ratio | 130 dB (typ, unweighted) |
| Distortion (THD & IMD) | 0.0001% (typ) – 0.0002% (max) |
| Bandwidth | DC – 100 kHz (–3 dB) |
| Supply Voltage | 100–120 V / 200–240 V AC, 50–60 Hz |
| Power Consumption | 0.45 W (idle) / 1000 W (max) |
| Dimensions | 215 mm × 110 mm × 340 mm |
| Weight | 5.8 kg |
| Fuse | T8A 250V 5×20 ceramic |
Caring for your Speakers and Amplifiers
To Keep your equipment safe these are some best practices to note. Please be advised that this is only to reduce the risk of misuse and is not an exhaustive list.
Speakers
- Speaker terminals are marked red and black, ensure your amplifier to the speakers are wired on the same colours
- Ensure no loose speaker wire from the red touches a loose wire from the black as this will lead to a short circuit and damage either the speaker, the amplifier or both.
- Not all speakers are designed to play at max volume, kindly consider the pairing of your amplifier and speakers
- Speaker cabinets cannot be replaced please handle with care.
AV & Stereo Amplifiers
- If your amplifier has HDMI ports, ensure all devices are off before plugging in the HDMI cable
- Turn off the amplifier before swoping out or adding speaker cable
- Amplifiers generate heat, place them in a well ventilated space. if possible avoid having anything on top of the unit.
- adding a surge protector can assist with power dips which are likely to damage your devices. Isotek and Furman are industry standard.
- Dusty environments can sometimes lead to accumulation of dust in the electronic components that might affect heat regulation
Shipping & Returns
- Free shipping on orders over R500 within the country.
- Standard delivery within 2–5 business days. Delays will be communicated. This might vary slightly depending on your location.
- Return items in original condition for a full refund. (unopened state)
- Returns that are open/unboxed will be subject to a handling fee. Refunds will only be processed after testing the unit.