PPA-1
Preamplificatore phono MM/MC con 2 ingressi RCA e uscite XLR/RCA
Pre Phono

Ultra-Quiet Phono Stage

 

The PPA-1 uses all-analog, discrete FET gain and EQ stages to transform the microscopic grooves in vinyl records into stunningly lifelike music. It includes all the features that serious vinyl enthusiasts demand, such as continuously variable input loading, MC/MM gain switching and XLR and RCA outputs. It can also be upgraded by adding the PS-5power supply, which can simultaneously power the PPA-1 and one other Audio Alchemy component, such as the DDP-1digital preamp.

Magical Analog Musicality

In our view, analog signals from vinyl records are already perfect when they leave the phono cartridge; all they need is to be handled with the utmost care in their path to the preamp.  That's why we use all-discrete, ultra-low-noise FET circuits for the PPA-1's RIAA EQ and gain stages, with no integrated circuits in the signal path.  It's also why we provide an easy upgrade path: Just replace the supplied power supply with the PS-5, which offers superior filtration, tighter voltage regulation, lower noise and greater energy storage.

Transforms to Suit Any System

Serious vinyl enthusiasts need more than just the basic options, so we give them what they need. Load impedance is independently, continuously adjustable for both inputs, so optimal performance can be achieved with any cartridge and you're not locked into specific settings. Either input can be set for MC or MM gain, and balanced XLR outputs are provided in addition to single-ended RCA outputs.

Key Features
·      Fully discrete, all-analog FET design with no ICs in signal path
·      Selectable MM or MC gain
·      Two single-ended RCA inputs with continuously adjustable loading
·      Balanced XLR and single-ended RCA outputs
·      Upgradeable through addition of PS-5 external power supply

Specifications

Frequency response
±0.1 dB, 10 Hz to 20 kHz

Nominal THD+N
<0.005% at 1 kHz

Signal-to-noise ratio (1 kHz)
High-gain input shorted: 67 dB unweighted, 76 dB A-weighted
Low-gain input shorted: 84 dB unweighted, 90 dB A-weighted

Gain
High-gain setting: 67 dB
Low-gain setting: 49 dB

Input sensitivity (1 kHz)
High gain: 450 𝛍V input for 1 VRMS balanced output
Low gain: 3 mV input for 1 VRMS balanced output

Input impedance
fixed 47 kΩ or variable 1Ω to 1000Ω

Output impedance
100Ω unbalanced, 100Ω per leg balanced

Channel separation (1 kHz)
High gain: -88 dB
Low gain: -100 dB

Inputs
2 stereo RCA

Outputs
stereo XLR, stereo RCA

Dimensions
3.5 x 5.5 x 11.6 in / 90 x 140 x 295 mm (hwd)

Weight
9 lb/ 4.1 kg



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