The amplifier is assembled according to the Lehmann Audio Black Cube scheme, but unlike the original, the trace of the tracks is reduced by more than 2 times, which can not but positively affect the operation of the device. Several options are available:
Transistors
- Output transistors BD140 / BD139 Philips, vintage in a gray case with copper legs.
- The output transistors BD140 / BD139 (Fairchild Semiconductor) they are in the past "ON", and even earlier "MOTOROLLA"
- Output transistors BD140 / BD139 (ST)
- Driver transistors BC546 / BC556 Philips, vintage with silver "face"
- Driver transistors BC546 / BC556 (Fairchild Semiconductor) they are in the past "ON", and even earlier "MOTOROLLA"
- Driver transistors BC546 / BC556 (China)
Isolation capacitors
- Polypropylene film capacitors WIMA, MKP series
- Polypropylene film capacitors of the CBB21, CBB22 series
Resistors
Metal Film Resistors Vishay DALE
Metal Film Resistors Vishay Beyschlag mbb0207
Metal Film Resistors China
Recommended for use with headphone protection module
The amplifier module is equipped with an op-amp
NE5532 or TL072 to choose from.
For an additional fee can be equipped with:
LME49860
OPA2134
Options are available according to individual agreement.
Power supply voltage 2x13 ... 16V
In the presence of toroidal transformers for powering this amplifier.
| Measurements | |
| Supply voltage AC | 18V...0...18V |
| Load resistance | 68 Ohm |
| Maximum power, W | 0,5 |
| Testing power, W | 0,04 |
| Frequency response (from 40 Hz to 15 kHz), dB | +0.06, -0.04 |
| Noise level, dB (A) | -103,7 |
| Dynamic range, dB (A) | 103,7 |
| THD, % | 0,0058 |
| THD + Noise, dB (A) | -82,0 |
| IMD + Noise, % | 0,0057 |
| Stereo crosstalk, dB | -67,0 |
| IMD at 10 kHz, % | 0,0059 |
| Measurement Page |
|
| General characteristics | |
| Amplifier class | A |
| Built-in protection | No |
| Gain | 18 |
| Maximum supply voltage (bipolar / constant) DC | 20V |
| Minimum supply voltage (bipolar / constant) DC | 17V |
| Module size LxWxH, mm | 50x127x40 |
| Number of channels | stereo |
| Output transistors | BD139/BD140 |
| Supply voltage, maximum (alternating / 2 shoulders on) AC | 16V |
| Supply voltage, minimum (alternating / 2 shoulders on) AC | 13V |
| Weight, kg | 0,133 |
Headphone Amplifier, Class A
- Brands kitON
- Product Code: AHB-01
- Availability: In Stock
-
1180.00грн.
Available Options
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