Analog Preamplifier in Class A
THD (+noise) – single ended:
>110 dB ‘A’ – weighted
10 Hz – 80 kHz (+0, –1 dB)
3x RCA / Line Level
Dimensions (L x W x H):
300 x 360 x 70 mm
Weight: 5 kg
Pure Class A analog preamplifier designed using medical and audiophile grade components.
The preamplifier section has two stages with very low noise FET transistors and paired manually to avoid the minimum signal variations. Includes ALPS motorized potentiometer with remote control and relays with very low contact resistance to avoid degrading the audio signal. The power supply uses high stability, very low noise voltage regulators and filtering with audiophile grade Nichicon capacitors.
The whole set has been placed in a CNC monoblock aluminum chassis, with several compartments for the different sections to avoid interferences between them. Thus, we have managed to reduce the figure of noise to the minimum level to obtain maximum pleasure in listening to our favorite music.
The preamplifier has a very minimalist format, with only the power switch, the input selector and the volume control, all finished in various color options, including chrome. All connectors are Furutech of very high quality.
The preamplifier is completely handcrafted, selecting the best components in the market and welding them manually on the printed circuit boards. Once the boards are finished, their parameters are adjusted in time-intervals until the perfect result is achieved once the highest performance temperature has been reached.
MM/MC Phono Preamplifier
Input sensitivity: 3.0 mV
Signal-to-noise ratio: >80 dB
Input overload margin: 15 dB
Moving magnet input connectors:
Input impedance: 47 kΩ
Input sensitivity: 300 µV
Signal-to-noise ratio: >70 dB
RIAA response: ±0.25 dB
Moving coil input connectors:
100, 200, 500, 1000 Ω (selectable)
Dimensions (L x W x H): 300 x 360 x 70 mm
Weight: 5 kg
We present a very high quality flexible MM / MC phono preamp with adjustable impedance and excellent technical performance. It is enclosed in an aluminum chassis mechanized by CNC with different compartments to avoid interference between circuits. Discreet high-class elegance.
The preamplifier was designed to listen at the reference level, so it is infallibly accurate and true to the input. Its purpose is to give it its music as intended by its artists and producers: nothing more and nothing less. The critical elements of a phonographic stage are: accurate RIAA equalization, low noise, low distortion and overload range.
The RIAA correction we have used is based on very low tolerance components. The resistances are metallic film and 0.1% tolerance. We have used Russian PIO capacitors (paper in oil), famous for their accuracy and consistency. The preamplifier section is responsible for a set of J-FET transistors that have been manually paired with a setting of 1%. The system accuracy is ±0.25 dB, 20 Hz – 20 kHz, extending to 45 kHz. This results in absolutely clear high frequencies without intermodulation or other anomalies that can distract us from our listening.
The signal-to-noise ratio in both MM (better than 82 dB) and MC (better than 72 dB) is outstanding and virtually inaudible in any volume setting. The distortion is extremely low, typically less than 0.01% in the entire audio band. The total gain is 70 dB.
Analog to Digital Converter
Jitter: <2 ps peak-to-peak
THD (+noise): <0.004%, 20 Hz – 20 kHz
Crosstalk: -104 dB, 20 Hz – 20 kHz
Signal-to-noise ratio: -117 dB, 20 Hz – 20 kHz
Frequency Response: +0, –0.1 dB, 20 Hz – 20 kHz
1x RCA coaxial connector SPDIF
32 – 384 kbps (16-24 bit stereo PCM)
1x TOSLINK optical connector
32 – 96 kbps (16-24 bit stereo PCM)
1x USB type-B (Amanero) Asynchronous data flow determined by computer settings (DSD under Windows) 32 – 384 kbps (16-24 bit stereo PCM)
1x line level RCA (phono)
1x line level XLR
Dimensions (L x W x H): 300 x 330 x 70 mm
Weight: 5 kg
The PDAC-1 mounts the ES9038PRO SABRE DAC, the flagship of the ESS PRO series. It sets a new benchmark for audio excellence with the highest dynamic range in the industry (DNR), up to 140 dB, in a 32-bit, 8-channel DAC.
The ES9038PRO DAC also features ESS’s 32-bit HyperStreamDAC patented technology with total harmonic distortion plus noise 122 dB. The HyperStream architecture is responsible for both the excellent sound quality of the ES9038PRO and the extremely low THD + noise.
It has a very low distortion, a very wide bandwidth and little noise. The technical performance of the DAC is on par with any other higher-priced DAC. The signal-to-noise ratio is -116 dB (weighted ‘A’), the frequency response is flat across the bandwidth and the distortion is 0.0052% at 1 kHz. These figures guarantee a completely neutral and accurate digital-to-analog conversion of any digital input. Includes USB input, DSD compatible (only for Windows).
As usual in atm-audio, the whole set has been put into a monobloc chassis of aluminum mechanized by CNC where the different sections have been compartmentalized to avoid interference between them. Thus, we have managed to reduce the noise figure to the minimum level to obtain maximum pleasure in listening to our favorite music.