Setting up great audio system with elaborate structure and connection can be challenging. However with the help of Kramer 912 Stereo Audio Power Amplifier the solution is easy; this high-performance power amplifier is use for balancing or to balance an unbalanced stereo audio signals. Either input can deliver a speaker output of 8.4 watts RMS power per channel into a 4ohm load.
- Inputs – 1 unbalanced stereo audio on RCA connectors, 1 balanced stereo on terminal block connectors.
- Output – Speakers on 4-pin terminal block connectors.
- S/N Ratio – 63dB balanced.
- Volume Control – Selectable control knob or 10V external control on a terminal block connector.
- Indicator LEDs – Power on, over-temperature warning.
- Compact Kramer TOOLS – 3 units can be rack mounted side-by-side in a 1U rack space with the optional RK-3T rack adapter.
For more on the technical specification see below:
| INPUTS: | 1 unbalanced stereo audio 1Vpp/10Kohm on 2 RCA connectors; 1 balanced stereo audio +4dBu/10Kohm on a 5-pin removable terminal block. |
| OUTPUT: | 1 stereo speaker output on a 4 pin removable large terminal block. |
| INPUT SENSITIVITY: | Unbalanced: 440mVpp; balanced : 105mVpp. |
| OUTPUT POWER: | 8ohm: 5.5W per channel; 4ohm: 8.4W per channel. |
| AMPLIFIER TYPE: | Class D. |
| MAXIMUM VOLTAGE GAIN: | Unbalanced: 32.6dB (x43); balanced: 36.2dB (x65). |
| BANDWIDTH (-3DB): | >20kHz. |
| S/N RATIO: | Unbalanced 60dB; balanced 63dB. |
| GAIN: | 8ohm: unbalanced <-68 to 33dB, balanced -60 to 36dB; 4ohm: unbalanced -48 to 40dB, balanced -60 to 38dB. |
| COUPLING: | Input: unbalanced DC (internal AC path), balanced AC; Output: DC. |
| AUDIO THD + NOISE: | 8ohm: unbalanced 2.3%, balanced 2.5%; 4ohm: unbalanced 3.1%, balanced 4.3%. |
| AUDIO 2ND HARMONIC: | 8ohm: unbalanced 1.4%, balanced 1.4%; 4ohm: unbalanced 2.7%, balanced 3.5%. |
| POWER SOURCE: | 12V DC, 2.8A, full load 4ohm @10% THD+N. |
| DIMENSIONS: | 12cm x 8.5cm x 2.5cm (4.7″ x 3.4″ x 1″) W, D, H. |
| WEIGHT: | 0.3kg (0.66lbs) approx. |
| ACCESSORIES: | Power supply, mounting bracket. |
| OPTIONS: | RK-3T 19” rack adapter. |
