Pro-Ject Phono Box DS3 B, Dual Phono stiprintuvas SNR MC (40dB): 85dBV, 91dBV, THD at 1kHz: <0.001% MM, < 0.004% MC, subsoninis filtras: prie 20Hz su 18dB/oktavai | Nemokamas Pristatymas

"Phono Box DS3 B" turi plieninį korpusą, padengtą prisukamomis aliuminio plokštelėmis. Tokia konstrukcija užtikrina labai gerą standumą ir puikią izoliaciją nuo trikdžių. 

The new DS3 phono preamplifier

The DS3 B phono box has a steel chassis covered with screwed aluminum plates. This construction provides a very good stiffness and an excellent isolation against interferences.

The Phono Box

DS3 B is available in silver or black. Magnetic wooden side panels are available separately. "B" stands for Balanced The Phono Box DS3 B uses a fully balanced gain section. Connect your turntable using either the 5-pin mini XLR cable or standard XLR cables and benefit from the symme tric signal path. Balanced transmissions consist of a hot and a cold signal. Both signals effectively carry the same musical infor mation. A true balanced gain stage can now extract the final musical information and remove any noise that may have been added during the transmission.

The DS3 B phono box has a steel chassis covered with screwed aluminum plates. This construction provides a very good stiffness and an excellent isolation against interferences. The Phono Box DS3 B is available in silver or black. Magnetic wooden side panels are available separately."B" stands for Balanced
The Phono Box DS3 B uses a fully balanced gain section. Connect your turntable using either the 5-pin mini XLR cable or standard XLR cables and benefit from the symme tric signal path. Balanced transmissions consist of a hot and a cold signal. Both signals effectively carry the same musical infor mation. A true balanced amplification stage can now extract the final musical information and remove any noise that may have been added during the transmission.

Discrete circuit design

The Phono Box DS3 B uses a fully discrete circuit design. A discrete circuit consists of electronic components that are distinct, individual parts. Countless hours of listening tests and years of experience have shown us that even the very best operational amplifiers are not as neutral, natural, dynamic or lively. Standard pho no integrated circuit preamps have a few dozen or hundreds of components, but discrete designs use hundreds or thousands of components in comparison.
Passive EQ After the balanced signals are transmitted, they are added back together and processed by the fully passive and discrete RIAA equalization stage. The split-passive equalization provides better impe dance matching and less deviation from the ideal RIAA curve. For the balanced XLR outputs, a discrete balancing stage produces a balanced signal, so you again benefit from symmetrical signal transmissions. The unbalanced RCA outputs use their own fully discrete output stage.

Cartridge setting options

Two turntables can be connected at the same time & adjusted on the front panel. All input settings are stored.
The large fully balanced design makes amplifications from 40dB to 65dB are possible. You can perfectly match it with a variety of pickups and integrate it into your hifi system by precisely adjusting the volume levels to other sources such as CD players or streaming devices. The load impedance can be continuously adjusted via a potentiometer. You can seamlessly adjust impedance during playback and instantly assess the effects of different load options. This is necessary to find exactly the right load impedance for your cartridge.

External power supply

The Phono Box DS3 B is powered by an external power supply. It is important to keep all parts that can radiate electromagnetic fields out of the range of the amplifier. For this reason, we use an external power supply. Due to legal requirements, this power supply must be a switched-mode power supply with a standby power consumption of 0.1 W. An external power supply with a linear design is even better, because it can deliver much cleaner current. If you want to produce such clean and really high quality power supplies, you have to use a transformer with very low core saturation and preferably with shielding between primary and secondary winding.

SPECIFIKACIJOS

• weighted SNR MC (40dB): 85dBV, 91dBV
• - 'A' weighted THD at 1kHz: <0.001% MM, < 0.004% MC
• TT): <0.005% MM, < 0.01%
• MC RIAA equalization: < 0.25dB / 20Hz - 20kHz
• Subsonic filter: at 20Hz with 18dB/octave
• Inputs: 1x 5-pin mini XLR / 1x pair XLR / 1x pair RCA Outputs: 1 pair RCA, 1x pair XLR
• XLR pin assignment: 1 ground, 2 "hot" & 3 "cold" Trigger In/Out: 12V on/off detector
• External power supply: 18V/500mA DC
• Power consumption: 18V/max. 290mA DC, <0.5 W standby Dimensions WxHxD: 206x72x194 (205 with jacks) mm Weight: 1480g without power supply unit