Class D mono power amplifier based on the PURIFI 1ET400A module. The switching power supply is the Hypex SMPS1200A400. The i / o board is the special high performance ROUGE NCX2 that allows the choice between operational IC (OPA1612) and discrete components, the mounting of HxR voltage regulators. Balanced input (XLR).
Very high quality amplifier, with analog sound and incredible performance. Analytical and transparent but at the same time capable of controlling the low frequencies with great control and authority.
ROLL OP-AMPS MOVING TWO JUMPERS
This power amplifier is equipped with the NCX2 i/o board which offers the possibility of adding discrete op-amps and voltage regulators.
The NCX2, in default, always uses the OPA1612 in the buffer stage, perhaps among the best IC's on the market for transparency and clarity of sound (without adding color), whose power is entrusted to the small and fast TI TPS7 voltage regulators ( LDO).
Basically, therefore, the same circuit as the previous NCX.
The new feautures, which makes NCX2 unique, is that it is nevertheless designed to add a discrete op-amp on DIP8 and the Hypex HxR audiophile voltage regulators.
This "addition", however, does not replace the default setting of the circuit and its basic components (OPA1612 + TI TPS7) since, by moving the appropriate jumpers on the board, the user can always choose and select in any moment the combination (operational-voltage regulator) he prefers:
OPA1612 with TPS7 voltage regulators,
OPA1612 with HxR voltage regulators,
discrete op-amps with TPS7 voltage regulators,
discrete op-amps with HxR voltage regulators.
PURE POWER WITHOUT DISTORTION
Purifi 1ET400A + Rouge NCX2
Output power: 2x550W (2Ω), 2x700W (4Ω), 2x400W (8Ω)
Distorsion THD + N: 0,005%
Input impedance: 47KΩ
Min. load (Z): 1Ω
Power Bandwidth: min. 35Khz
Frequency Response: 0-50Khz
Gain: 26 dB
Output noise: 20µV
CMRR: 65db all frequency
Maximum output current: 28A
Inputs: balanced (XLR) + unbalanced (RCA)
Binding posts: WBT 0703cu Nextgen
Trigger (on request)
Mains: 190-250Vac (95-130Vac on request)
Casing: full hi grade aluminium
Weight: 9 kg
Op-amp 1: Texas Instruments OPA1612
Op-amp 2: socket DIP8*
Voltage regulators LDO: Texas Instruments TPS7
Discrete voltage regulators: Hypex HxR
* Sparkos SS3602, Sonic Imagery 994Enh-Ticha