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OSA ELECTRONICS ULPS1225A Power Adapter Ultra Low Noise 2x9V 2.5A
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OSA Electronics ULPS1225A
Power Adapter Ultra Low Noise 2x9V 2.5A
The ULPS1225A from OSA Electronics is a high-performance audiophile AC adapter. It incorporates an EMI filter to attenuate EMI interference to provide a clean electrical signal. The output stage delivers ultra-low voltage ripple and dropout.
This model delivers a voltage of 2x9V and a current of 2x ~1.2-1.4A.
Points clés :
- Ultra low noise / ripple
- Talema Audio Grade High Efficiency Toroidal Transformer
- Ultra-fast MUR860 diodes
- Dual +/- output (can be combined in series or parallel)
- Ultra low dropout
- Slow Charge / Discharge (to avoid "pops")
- Inrush current limitating
- 115/230VAC switchable input voltage
- RC and LC input. Filtered output
- High-end components (Murata, Bourns, TI, Nichicon...)
- Power supply designed and assembled by hand in Barcelona (Spain)
Input EMI filtering
Ultra-fast diodes MUR860
Excellent thermal performance
Technical characteristics
| Specifications | |
|---|---|
| Product type | Power adapter |
| Input voltage | 115/230VAC 50/60Hz |
| Output voltage | 2x9V DC |
| Output current | 2x ~1.2-1.4A |
| Noise RMS (10Hz à 10kHz) | ≤ 0.00018Vrms |
| Noise PP (10Hz à 100kHz) | ≤ 0.0005Vpp |
| PSRR @ 1MHz | 75dB |
| Transformer | Audio Grade, Shielded, 25VA |
| Main filter | High Performance dual stage filter |
| Input filtering capacitors | 12x 1800µF Ultra low ESR |
| Output filtering capacitors | 6x 2700µF Ultra low ESR |
| General | |
|---|---|
| Housing material | Aluminum |
| Color | Silver |
| Dimensions | 270 x 115 x 60mm |
| Weight | 1.5kg |
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