Description
Topping PRE90 Preamplifier Balanced / Single-Ended Preamplifier NFCA
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Features
- TOPPING Pre90 Preamplifier: Fully balanced amplifier structure for both balanced and single-ended signals. Pre90 could set volume memory for each input or volume memory for each output. More easy operation with the remote controller.
- Selectable XLR / RCA output: The output of Pre90 could be config to “XLR only”, “RCA only” or “XLR + RCA “. Therefore, the amplified signal can be connected to two different amplifiers. Good combination with EXT90 D90.
- Ultra-high Performance NFCA modules: It provides excellent DC and AC performance. Ultra-low noise of 0.3uv is miles ahead of the competition, giving an absurdly high dynamic range of 145db and no audible noise and darkest background.
- Ext90 (not included) could extend you more inputs: A standard Pre90 provide you 1 x RCA and 1 x XLR stereo inputs. But when it working with a Ext90, they could provide totally 2 x RCA and 4 x XLR stereo inputs. This is enough for multi source systems.
- Relay volume control: A large number of high quality Japanese small signal relayIsed volume control of Pre90. Brings the advantages of precise control remote control, longevity, and complete channel balanceIf the volume was set high while turn on or switch in, Pre90 will automatically reduced to a safe volume to avoid your speakers/headphones blown by sudden high volume.
What’s in the Package
- Pre90
- Remote control
- AC cable
- User manual
SPECIFICATIONS
| Pre90/EXT90 Parameters (@IN=5Vrms Vol=0dB) |
SE IN/SE OUT |
BAL IN/SE OUT |
BAL IN/BAL OUT |
BAL IN/BAL OUT |
| THD+N @1kHz A-wt | <0.00007% | <0.00007% | <0.00007% | <0.00007% |
| THD @20-20kHz 90kBW | <0.0003% | <0.0003% | <0.0003% | <0.0003% |
| SINAD @1kHz A-wt | 124dB | 124dB | 124dB | 124dB |
| SNR @1kHz A-wt | 141dB | 137dB | 145dB | 138dB |
| Dynamic Range @1kHz A-wt | 141dB | 137dB | 145dB | 138dB |
| Frequency Response | 20Hz-100kHz(±0.1dB) | 20Hz-100kHz(±0.1dB) | 20Hz-100kHz(±0.1dB) | 20Hz-100kHz(±0.1dB) |
| OutPut Level | 25Vpp | 25Vpp | 50Vpp | 50Vpp |
| AP measured noise level @A-wt | <0.7uVrms | <0.7uVrms | <0.9uVrms | <0.9uVrms |
| Actual noise level* @A-wt | <0.3uVrms | <0.3uVrms | <0.6uVrms | <0.6uVrms |
| Channel Crosstalk @1kHz | -130dB | -137dB | -140dB | -140dB |
| Channel Balance | +10dB – -60dB ±0.5dB | +10dB – -60dB ±0.5dB | +16dB – -60dB ±0.5dB | +16dB – -60dB ±0.5dB |
| IMD CCIF @(18kHz+19kHz) | -115dB | -115dB | -115dB | -115dB |
| IMD SMPTE @(60Hz+7kHz) | -115dB@SMPTE4: 1 | -115dB@SMPTE4: 1 | -115dB@SMPTE4: 1 | -115dB@SMPTE4: 1 |
| Input Sensitivity | 9.2Vrms @0dB | 9.3Vrms @0dB | 9.2Vrms @0dB | 9.3Vrms @0dB |
| Volume Range | +10dB – -99dB | +10dB – -99dB | +16dB – -99dB | +16dB – -99dB |
| Output Impedance | 20Ω | 20Ω | 40Ω | 40Ω |
| Output DC Configuration | <1mVrms | <1mVrms | <1mVrms | <1mVrms |
