2pcs PASS A5 Single-ended Class A Mono Power Amplifier bulk kit Board 60W stereo
$149.99
In stock
SKU
eii10162
2pcs PASS A5 Single-ended Class A Mono Power Amplifier bulk kit Board 60W
(2pcs stereo)
Classic American PASS LABS fever 60W single-ended Class A PASS ALEPH5 power amplifier kit (parts) dual channel kit contains all parts on the amplifier board, and differential amplification class with Harbin Asia Pacific Radiator YV40 four, TO220 Mica import 6 pieces, differential 4 TO220 insulators, 4 sets of differential stainless steel screws, 4 sets of nuts for fixing differential tubes, and 8 sets of copper pillars (5mm height) and supporting stainless steel nuts for fixing PCBs, and 6 pieces of TO247 mica insulators.
1). Import high-grade thick FR-4 double-sided plate, 2OZ thick copper foil, gold-plated, double-sided blue ink solder resist.
2).Single left and right mirror symmetrical design, the signal flow is reasonable, the path is very short, one point is grounded, three pairs of output high power field tubes are installed in each channel (the US brand new original IRFP240 specified by NELSON PASS)
3). Each channel board size: 282mmX68mmX2mm; Mounting hole size: 271mmX57mm, the highest part of the board is a differential heat sink, 3cm high.
4). Left and right channel channels can be independently powered, can effectively improve the channel separation, sound field reduction is more clear, the independent power supply drawback is the cost increase; the total power of the two-channel transformer is at least 600W, if you can use two 500W transformers Separate power supply is ideal. In the transformer selection, the toroidal transformer is more HIFI, E-type transformer is full of charm, more resistant to hearing, R-type transformer sound clear, more balanced, transformer secondary output voltage: dual 28V-30V, recommended With four-wire double-bridge rectifier, rectifier bridge is recommended to use IR gold seal bridge, the current capacity of about 35A, pressure 400V-600V can be, filter electrolytic total capacity of about 120,000uF, optional RIFA169 or Sibi or PHILIPS BC or UK BHC and other well-known brands of electrolysis, can not find a good condition can choose domestic Jianghai CD135 is also very good, there are conditions can use the inductor in the 2-3mH, current capacity in the low-frequency choke 10-12A choke CLC filter circuit, The capacity of the capacitor can be reduced at this time, but the charm of the machine can add a lot of color.
5). Because PASS A5 uses +/-34V DC power supply, each output power tube quiescent current 1A, so the static power consumption per channel is about 200W, the two-channel static power consumption is about 400W, so we must choose enough Radiator to ensure heat dissipation, radiators over 20 kilograms is necessary, the radiator temperature guarantee that the hand can touch more than 5 seconds is appropriate, in addition, the radiator temperature is about 50 degrees when the sound is the best, do not believe you try :)
Original parameters:
SPECIFICATIONS
Gain 20 dB balanced
Freq. Response - 3 dB at 0.3 Hz, -3 dB at 100 KHz
Power Output 60 watts/ch 8 ohms
Distortion (1KHz) <1%THD
Output Impedance 0.1ohm
Input Impedance 10 Kohm unbalanced
25 Kohm differential
Input CMRR > -50 dB Typical
Power Consumption 300 watts
Dimensions 12 "W x 12" D x 10.5" H
Shipping Weight 60 lb.
Specifications:
Output power: 60 watts (8 ohms), 90 watts (4 ohms)
Total harmonic distortion: 1%
Frequency response: 2Hz-100KHz±3dB
Input impedance: 10K ohms
Gain: 20dB (balanced)
Maximum output: 30V/8A
Noise: 600uV
Damping coefficient: 50
DC offset: <100mV
1pcs(90 days after receipt of order)
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