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FOSI AUDIO ZA3-32V Stereo / Mono Amplifier
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Accessories for this product
Find here a selection of useful and/or essential accessories for this product. These are specially selected by the Audiophonics team according to the characteristics of the product.
FOSI AUDIO ZA3-32V
Stereo / Mono Class D Amplifier TPA3255 2x95W 4 Ohm / 1x110W 4 Ohm
This small, compact and powerful Fosi Audio ZA3 integrated amplifier has the particularity of being able to operate in both stereo and mono mode. It integrates two TI TPA3255 amplifier chips mounted in DIP8, enabling it to deliver power up to 2x95W or 1x110W under 4Ω (or 2x150W / 1x240W with 48V power supply). It features a balanced stereo input on XLR in addition to its stereo RCA input, as well as speaker terminals and an active subwoofer output. It also features a 12V trigger. This makes it versatile, offering you the possibility of numerous types of Hi-Fi installations integrating one or more Fosi Audio ZA3 amplifiers. Its power supply is DC, with a voltage range from 24V to 48V DC.
TI TPA3255 amplifier chips
Inside the Fosi Audio ZA3 is one TI TPA3255 chip per channel. This is what allows it to develop its high power, SNR greater than 106dB and THD at 0.006%.
Quality components
The Fosi Audio ZA3 features high-quality components: German Weimar high-frequency filters, Omron relays, dedicated operational amplifiers for balanced input and subwoofer output, Japanese ELNA capacitors, etc.
As NE5532 AOPs are DIP8 mounted, they are easily replaceable to personalize your listening experience. The following AOPs are compatible: Sparkos SS3602, MUSES02, OPA2134PA , OP249, AD827, RM4558, LM4562, etc.
FOSI ZA3 rear panel
| 1 | XLR balanced stereo input |
| 2 | RCA stereo input |
| 3 | Subwoofer output |
| 4 | Speaker terminals |
| 5 | DC 24V-48V power supply |
| 6 | 12V Trigger |
Technical characteristics
| Specifications | |
|---|---|
| Product type | Integrated amplifier |
| Amplification chip | TI TPA3255 |
| Inputs | 1x RCA stereo input 1x XLR balanced stereo input 1x Trigger 12V on Jack 3.5mm |
| Outputs | Speaker terminals Subwoofer output |
| Trigger | |
| Input sensitivity | 0.775V |
| SNR | ≥ 106dB |
| Dynamic range | ≥ 106dB |
| THD | 0.006% |
| Frequency response | 20Hz-20kHz (±0.1dB) |
| Supported speaker impedance | 2-4-8Ω |
| Output power | Mode stéréo : 2x 95W @ 4Ω, 32V Mode mono : 1x 110W @ 4Ω, 32V Mode stéréo : 2x 150W @ 4Ω, 48V Mode mono : 1x 240W @ 4Ω, 48V |
| General | |
|---|---|
| Power supply voltage | 24-48V DC |
| Dimensions | 155 x 184 x 51mm |
| Weight | 838g |
| Color | Black |
| Package | 1x Fosi Audio ZA3 integrated amplifier 1x Power supply 32V DC 5A |
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