North Star DesignBlue DiamondusedNorth Star Design Blue DiamondThe IA Blue Diamond power stage uses a low distortion high linearity common base voltage amplifier driver stage. This type of circuit topology will provide a linear current amplification to drive e...1750.00

North Star Design Blue Diamond

Listing ID: lisa4ieb Classified 
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Condition
9/10
Payment methods
Ships fromMesquite, TX, 75150
Ships toUnited States
Package dimensionsunspecified
Shipping carrierUPS
Shipping cost$75.00
Original accessoriesRemote Control
AverageResearch Pricing

The IA Blue Diamond power stage uses a low distortion high linearity common base voltage amplifier driver stage. This type of circuit topology will provide a linear current amplification to drive eight Onsemi 200 Watt output transistors in a "triple darlington" high current configuration. This output stage is ready to drive even the most hard speaker systems. With this intrinsic high linearity of the amplification stage, only a very low amount of overall feedback is necessary to improve the stability of the performance over the time. NIC audio grade capacitors are used in bypass and de-coupling positions. Electrolytic capacitors have been bypassed with polyester capacitors where necessary, improving on the high frequency performance. Low inductance film Vishay power resistors are used in the output stage.

The IA Blue Diamond uses one low noise, purpose designed 750VA toroidal transformer. This transformer combined with 120,000 Micro Farads of capacitors, provide a big power reserve for a realistic reproduction of the most difficult music transient.

A regulated symmetrical tracking power supply with a low noise voltage reference feeds the input and low-level driver stages, which provides a fully stabilised low noise voltage. In this was we have ensured the highest level of sonic purity. All the audio circuits are fed by the dedicated audio power supplies, while the other circuits as input switching, display & micro controller and the protection circuits as well have their own dedicated supplies in order to keep the audio signal path as pure as possible.

Output Power: 150W/8 Ohm
Amplifier Gain: 30dB
Frequency response (-3dB): 1Hz-100kHz optional DAC board
THD: <0,05%
Toroidal Transformer Power: 750VA
Total capacitance: 120.000uF
Unbalanced Input Impedance: 15 kOhm
Balanced Input Impedance: 30 kOhm
Analog input: 5 line unbalanced, 1 line Balanced
Digital input (optional): 1 USB, 1 Toslink, 1 Coaxial
Aluminum remote control
Power supply: 100 V, 120 V, 230 V, 240 V (50-60 Hz); factory set for destination country
Dimensions: 17 in (W) x 15.5 in (D) x 3.35 in (H); 43.5 cm (W) x 35 cm (D) x 8.5 cm (H)
Shipping Weight: 40lbs. (18 kg)

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