Der Kopfhrerverstrker ist in einem sehr guten Zustand! Hat noch 2 Jahre und 5 Monate Garantie! Nur der verstrkter nicht die rhren! Kommt mit Netzteil und ovp Man kann den Kopfhrerverstrker ausprobieren und abholen! + Rechnung! + 1 cinchkabel!

Der Kopfhrerverstrker ist in einem sehr guten Zustand! Hat noch 2 Jahre und 5 Monate Garantie! Nur der verstrkter nicht die rhren! Kommt mit Netzteil und ovp Man kann den Kopfhrerverstrker ausprobieren und abholen! + Rechnung! + 1 cinchkabel!

MOFI-EMP-Tube-Headphone Amplifier Compared with the commonly reproduction of EMP, we improved: 1?High Voltage?Two-stage buck regulator filter, Two low-pass filter (with a corner frequency of 1.6Hz&16Hz) prevents power noise from being introduced into the amplifier. Provide purer power supply (close to battery). 2?The high-voltage power supply uses MOSFET as pass transistors, which have a sense of tube sound characteristics but rejecting the rectification and regulation noise. 3?high-voltage soft-start feature is included which will take about 5 second to reach the designed voltage protecting the tube from any voltage shock. 4?Using parallel AC heater power supply, the voltage distribution is more accurate, better than the original deign which is series voltage regulator. 5?all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign. 6?PCB is Small with double-sided smt. 7?The triangular tube layout reduces the number of dual-channel common tubes, further improves the separation and reduces crosstalk. 8?More cost-effective sound modification plan. PCB SIZE: 102X152X1.6mm Power requirements: heater volt: AC 6.3V,I?1.2A Best:6.3VAC@2A high volt: AC100~260V,I?0.04A best:120VAC@0.1A Product configuration Finished board: Based on the well-tested board on the standard version kit, we verified all key points' voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test. All finished pcbs are all carefully hand-soldered and fully tests, so the price is higher and less cost performance. Price-sensitive consumers but with have DIY ability are recommended to choose the kit. Schematic & key point of debugging PCB comes with component parameters for easy installation. We only refer the schematic of the amplification part of the circuit. If you need full circuit parameter, please read the component value with the PCB by yourself; we do not provide additionally. please keep test point voltage close enough to it, +-20% is also permitted.

MOFI-EMP-Tube-Headphone Amplifier Compared with the commonly reproduction of EMP, we improved: 1?High Voltage?Two-stage buck regulator filter, Two low-pass filter (with a corner frequency of 1.6Hz&16Hz) prevents power noise from being introduced into the amplifier. Provide purer power supply (close to battery). 2?The high-voltage power supply uses MOSFET as pass transistors, which have a sense of tube sound characteristics but rejecting the rectification and regulation noise. 3?high-voltage soft-start feature is included which will take about 5 second to reach the designed voltage protecting the tube from any voltage shock. 4?Using parallel AC heater power supply, the voltage distribution is more accurate, better than the original deign which is series voltage regulator. 5?all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign. 6?PCB is Small with double-sided smt. 7?The triangular tube layout reduces the number of dual-channel common tubes, further improves the separation and reduces crosstalk. 8?More cost-effective sound modification plan. PCB SIZE: 102X152X1.6mm Power requirements: heater volt: AC 6.3V,I?1.2A Best:6.3VAC@2A high volt: AC100~260V,I?0.04A best:120VAC@0.1A Product configuration Finished board: Based on the well-tested board on the standard version kit, we verified all key points' voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test. All finished pcbs are all carefully hand-soldered and fully tests, so the price is higher and less cost performance. Price-sensitive consumers but with have DIY ability are recommended to choose the kit. Schematic & key point of debugging PCB comes with component parameters for easy installation. We only refer the schematic of the amplification part of the circuit. If you need full circuit parameter, please read the component value with the PCB by yourself; we do not provide additionally. please keep test point voltage close enough to it, +-20% is also permitted.

MOFI-EMP-Tube-Headphone Amplifier Compared with the commonly reproduction of EMP, we improved: 1?High Voltage?Two-stage buck regulator filter, Two low-pass filter (with a corner frequency of 1.6Hz&16Hz) prevents power noise from being introduced into the amplifier. Provide purer power supply (close to battery). 2?The high-voltage power supply uses MOSFET as pass transistors, which have a sense of tube sound characteristics but rejecting the rectification and regulation noise. 3?high-voltage soft-start feature is included which will take about 5 second to reach the designed voltage protecting the tube from any voltage shock. 4?Using parallel AC heater power supply, the voltage distribution is more accurate, better than the original deign which is series voltage regulator. 5?all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign. 6?PCB is Small with double-sided smt. 7?The triangular tube layout reduces the number of dual-channel common tubes, further improves the separation and reduces crosstalk. 8?More cost-effective sound modification plan. PCB SIZE: 102X152X1.6mm Power requirements: heater volt: AC 6.3V,I?1.2A Best:6.3VAC@2A high volt: AC100~260V,I?0.04A best:120VAC@0.1A Product configuration Finished board: Based on the well-tested board on the standard version kit, we verified all key points' voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test. All finished pcbs are all carefully hand-soldered and fully tests, so the price is higher and less cost performance. Price-sensitive consumers but with have DIY ability are recommended to choose the kit. Schematic & key point of debugging PCB comes with component parameters for easy installation. We only refer the schematic of the amplification part of the circuit. If you need full circuit parameter, please read the component value with the PCB by yourself; we do not provide additionally. please keep test point voltage close enough to it, +-20% is also permitted.

MOFI-EMP-Tube-Headphone Amplifier Compared with the commonly reproduction of EMP, we improved: 1?High Voltage?Two-stage buck regulator filter, Two low-pass filter (with a corner frequency of 1.6Hz&16Hz) prevents power noise from being introduced into the amplifier. Provide purer power supply (close to battery). 2?The high-voltage power supply uses MOSFET as pass transistors, which have a sense of tube sound characteristics but rejecting the rectification and regulation noise. 3?high-voltage soft-start feature is included which will take about 5 second to reach the designed voltage protecting the tube from any voltage shock. 4?Using parallel AC heater power supply, the voltage distribution is more accurate, better than the original deign which is series voltage regulator. 5?all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign. 6?PCB is Small with double-sided smt. 7?The triangular tube layout reduces the number of dual-channel common tubes, further improves the separation and reduces crosstalk. 8?More cost-effective sound modification plan. PCB SIZE: 102X152X1.6mm Power requirements: heater volt: AC 6.3V,I?1.2A Best:6.3VAC@2A high volt: AC100~260V,I?0.04A best:120VAC@0.1A Product configuration Finished board: Based on the well-tested board on the standard version kit, we verified all key points' voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test. All finished pcbs are all carefully hand-soldered and fully tests, so the price is higher and less cost performance. Price-sensitive consumers but with have DIY ability are recommended to choose the kit. Schematic & key point of debugging PCB comes with component parameters for easy installation. We only refer the schematic of the amplification part of the circuit. If you need full circuit parameter, please read the component value with the PCB by yourself; we do not provide additionally. please keep test point voltage close enough to it, +-20% is also permitted.

Der verstrker hat noch 2 Jahre und 6 Monate Garantie! Kommt mit Netzteil! OVP und Rechnung! Die Garantie ist nur auf dem verstrker nicht die rhren! Es geht auch Abholung! + ein cinchkabel Im Wert von 120 Euro?

MOFI-EMP-Tube-Headphone Amplifier Compared with the commonly reproduction of EMP, we improved: 1?High Voltage?Two-stage buck regulator filter, Two low-pass filter (with a corner frequency of 1.6Hz&16Hz) prevents power noise from being introduced into the amplifier. Provide purer power supply (close to battery). 2?The high-voltage power supply uses MOSFET as pass transistors, which have a sense of tube sound characteristics but rejecting the rectification and regulation noise. 3?high-voltage soft-start feature is included which will take about 5 second to reach the designed voltage protecting the tube from any voltage shock. 4?Using parallel AC heater power supply, the voltage distribution is more accurate, better than the original deign which is series voltage regulator. 5?all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign. 6?PCB is Small with double-sided smt. 7?The triangular tube layout reduces the number of dual-channel common tubes, further improves the separation and reduces crosstalk. 8?More cost-effective sound modification plan. PCB SIZE: 102X152X1.6mm Power requirements: heater volt: AC 6.3V,I?1.2A Best:6.3VAC@2A high volt: AC100~260V,I?0.04A best:120VAC@0.1A Product configuration Finished board: Based on the well-tested board on the standard version kit, we verified all key points' voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test. All finished pcbs are all carefully hand-soldered and fully tests, so the price is higher and less cost performance. Price-sensitive consumers but with have DIY ability are recommended to choose the kit. Schematic & key point of debugging PCB comes with component parameters for easy installation. We only refer the schematic of the amplification part of the circuit. If you need full circuit parameter, please read the component value with the PCB by yourself; we do not provide additionally. please keep test point voltage close enough to it, +-20% is also permitted.

Sie bieten auf zwei Artikel, die ich leider nie nutzte. Sie wurden nur ausgepackt, um die Funktion zu prüfen. Sennheiser HD 800S mit Brocksieper Kopfhörerverstärker EarMax Pro 1. Der audiophile Kopfhörer, Sennheiser HD 800S,an dem alle anderen gemessen werden. (Herstellerpreis z.Z. €1.674,-); 2. Brocksieper Kopfhörerverstärker EarMax Pro Das ultimative Hörerlebnis in reiner Röhrentechnik (Handelspreis ca. €900,-) Die Synergie beider HiFi-Artikel gilt in Fachkreisen als unschlagbar. Viel Erfolg!

MOFI-EMP-Tube-Headphone Amplifier Compared with the commonly reproduction of EMP, we improved: 1?High Voltage?Two-stage buck regulator filter, Two low-pass filter (with a corner frequency of 1.6Hz&16Hz) prevents power noise from being introduced into the amplifier. Provide purer power supply (close to battery). 2?The high-voltage power supply uses MOSFET as pass transistors, which have a sense of tube sound characteristics but rejecting the rectification and regulation noise. 3?high-voltage soft-start feature is included which will take about 5 second to reach the designed voltage protecting the tube from any voltage shock. 4?Using parallel AC heater power supply, the voltage distribution is more accurate, better than the original deign which is series voltage regulator. 5?all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign. 6?PCB is Small with double-sided smt. 7?The triangular tube layout reduces the number of dual-channel common tubes, further improves the separation and reduces crosstalk. 8?More cost-effective sound modification plan. PCB SIZE: 102X152X1.6mm Power requirements: heater volt: AC 6.3V,I?1.2A Best:6.3VAC@2A high volt: AC100~260V,I?0.04A best:120VAC@0.1A Product configuration Finished board: Based on the well-tested board on the standard version kit, we verified all key points' voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test. All finished pcbs are all carefully hand-soldered and fully tests, so the price is higher and less cost performance. Price-sensitive consumers but with have DIY ability are recommended to choose the kit. Schematic & key point of debugging PCB comes with component parameters for easy installation. We only refer the schematic of the amplification part of the circuit. If you need full circuit parameter, please read the component value with the PCB by yourself; we do not provide additionally. please keep test point voltage close enough to it, +-20% is also permitted.

MOFI-EMP-Tube-Headphone Amplifier Compared with the commonly reproduction of EMP, we improved: 1?High Voltage?Two-stage buck regulator filter, Two low-pass filter (with a corner frequency of 1.6Hz&16Hz) prevents power noise from being introduced into the amplifier. Provide purer power supply (close to battery). 2?The high-voltage power supply uses MOSFET as pass transistors, which have a sense of tube sound characteristics but rejecting the rectification and regulation noise. 3?high-voltage soft-start feature is included which will take about 5 second to reach the designed voltage protecting the tube from any voltage shock. 4?Using parallel AC heater power supply, the voltage distribution is more accurate, better than the original deign which is series voltage regulator. 5?all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign. 6?PCB is Small with double-sided smt. 7?The triangular tube layout reduces the number of dual-channel common tubes, further improves the separation and reduces crosstalk. 8?More cost-effective sound modification plan. PCB SIZE: 102X152X1.6mm Power requirements: heater volt: AC 6.3V,I?1.2A Best:6.3VAC@2A high volt: AC100~260V,I?0.04A best:120VAC@0.1A Product configuration Finished board: Based on the well-tested board on the standard version kit, we verified all key points' voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test. All finished pcbs are all carefully hand-soldered and fully tests, so the price is higher and less cost performance. Price-sensitive consumers but with have DIY ability are recommended to choose the kit. Schematic & key point of debugging PCB comes with component parameters for easy installation. We only refer the schematic of the amplification part of the circuit. If you need full circuit parameter, please read the component value with the PCB by yourself; we do not provide additionally. please keep test point voltage close enough to it, +-20% is also permitted.

MOFI-EMP-Tube-Headphone Amplifier Compared with the commonly reproduction of EMP, we improved: 1?High Voltage?Two-stage buck regulator filter, Two low-pass filter (with a corner frequency of 1.6Hz&16Hz) prevents power noise from being introduced into the amplifier. Provide purer power supply (close to battery). 2?The high-voltage power supply uses MOSFET as pass transistors, which have a sense of tube sound characteristics but rejecting the rectification and regulation noise. 3?high-voltage soft-start feature is included which will take about 5 second to reach the designed voltage protecting the tube from any voltage shock. 4?Using parallel AC heater power supply, the voltage distribution is more accurate, better than the original deign which is series voltage regulator. 5?all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign. 6?PCB is Small with double-sided smt. 7?The triangular tube layout reduces the number of dual-channel common tubes, further improves the separation and reduces crosstalk. 8?More cost-effective sound modification plan. PCB SIZE: 102X152X1.6mm Power requirements: heater volt: AC 6.3V,I?1.2A Best:6.3VAC@2A high volt: AC100~260V,I?0.04A best:120VAC@0.1A Product configuration Finished board: Based on the well-tested board on the standard version kit, we verified all key points' voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test. All finished pcbs are all carefully hand-soldered and fully tests, so the price is higher and less cost performance. Price-sensitive consumers but with have DIY ability are recommended to choose the kit. Schematic & key point of debugging PCB comes with component parameters for easy installation. We only refer the schematic of the amplification part of the circuit. If you need full circuit parameter, please read the component value with the PCB by yourself; we do not provide additionally. please keep test point voltage close enough to it, +-20% is also permitted.

MOFI-EMP-Tube-Headphone Amplifier Compared with the commonly reproduction of EMP, we improved: 1?High Voltage?Two-stage buck regulator filter, Two low-pass filter (with a corner frequency of 1.6Hz&16Hz) prevents power noise from being introduced into the amplifier. Provide purer power supply (close to battery). 2?The high-voltage power supply uses MOSFET as pass transistors, which have a sense of tube sound characteristics but rejecting the rectification and regulation noise. 3?high-voltage soft-start feature is included which will take about 5 second to reach the designed voltage protecting the tube from any voltage shock. 4?Using parallel AC heater power supply, the voltage distribution is more accurate, better than the original deign which is series voltage regulator. 5?all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign. 6?PCB is Small with double-sided smt. 7?The triangular tube layout reduces the number of dual-channel common tubes, further improves the separation and reduces crosstalk. 8?More cost-effective sound modification plan. PCB SIZE: 102X152X1.6mm Power requirements: heater volt: AC 6.3V,I?1.2A Best:6.3VAC@2A high volt: AC100~260V,I?0.04A best:120VAC@0.1A Product configuration Finished board: Based on the well-tested board on the standard version kit, we verified all key points' voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test. All finished pcbs are all carefully hand-soldered and fully tests, so the price is higher and less cost performance. Price-sensitive consumers but with have DIY ability are recommended to choose the kit. Schematic & key point of debugging PCB comes with component parameters for easy installation. We only refer the schematic of the amplification part of the circuit. If you need full circuit parameter, please read the component value with the PCB by yourself; we do not provide additionally. please keep test point voltage close enough to it, +-20% is also permitted.

MOFI-EMP-Tube-Headphone Amplifier Compared with the commonly reproduction of EMP, we improved: 1?High Voltage?Two-stage buck regulator filter, Two low-pass filter (with a corner frequency of 1.6Hz&16Hz) prevents power noise from being introduced into the amplifier. Provide purer power supply (close to battery). 2?The high-voltage power supply uses MOSFET as pass transistors, which have a sense of tube sound characteristics but rejecting the rectification and regulation noise. 3?high-voltage soft-start feature is included which will take about 5 second to reach the designed voltage protecting the tube from any voltage shock. 4?Using parallel AC heater power supply, the voltage distribution is more accurate, better than the original deign which is series voltage regulator. 5?all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign. 6?PCB is Small with double-sided smt. 7?The triangular tube layout reduces the number of dual-channel common tubes, further improves the separation and reduces crosstalk. 8?More cost-effective sound modification plan. PCB SIZE: 102X152X1.6mm Power requirements: heater volt: AC 6.3V,I?1.2A Best:6.3VAC@2A high volt: AC100~260V,I?0.04A best:120VAC@0.1A Product configuration Finished board: Based on the well-tested board on the standard version kit, we verified all key points' voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test. All finished pcbs are all carefully hand-soldered and fully tests, so the price is higher and less cost performance. Price-sensitive consumers but with have DIY ability are recommended to choose the kit. Schematic & key point of debugging PCB comes with component parameters for easy installation. We only refer the schematic of the amplification part of the circuit. If you need full circuit parameter, please read the component value with the PCB by yourself; we do not provide additionally. please keep test point voltage close enough to it, +-20% is also permitted.

Brocksieper Earmax S.E Rohrenkopfhrerverstrker. Im nahezu perfekten Zustand. Im August 2020 nochmal generalberholt. Wer sich in der Materie auskennt der wei was das fr ein astreines Teil ist was KH Verstrker ist. Aktueller Preis liegt um die 1090 Euro. Damit wir wissen wovon hier reden. . Hier sind nur optisch Miniabltterungen vom Silberlack. Minimal siehe Fotos. Sonst im absoluten Topzustand .

MOFI-EMP-Tube-Headphone Amplifier Compared with the commonly reproduction of EMP, we improved: 1?High Voltage?Two-stage buck regulator filter, Two low-pass filter (with a corner frequency of 1.6Hz&16Hz) prevents power noise from being introduced into the amplifier. Provide purer power supply (close to battery). 2?The high-voltage power supply uses MOSFET as pass transistors, which have a sense of tube sound characteristics but rejecting the rectification and regulation noise. 3?high-voltage soft-start feature is included which will take about 5 second to reach the designed voltage protecting the tube from any voltage shock. 4?Using parallel AC heater power supply, the voltage distribution is more accurate, better than the original deign which is series voltage regulator. 5?all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign. 6?PCB is Small with double-sided smt. 7?The triangular tube layout reduces the number of dual-channel common tubes, further improves the separation and reduces crosstalk. 8?More cost-effective sound modification plan. PCB SIZE: 102X152X1.6mm Power requirements: heater volt: AC 6.3V,I?1.2A Best:6.3VAC@2A high volt: AC100~260V,I?0.04A best:120VAC@0.1A Product configuration Finished board: Based on the well-tested board on the standard version kit, we verified all key points' voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test. All finished pcbs are all carefully hand-soldered and fully tests, so the price is higher and less cost performance. Price-sensitive consumers but with have DIY ability are recommended to choose the kit. Schematic & key point of debugging PCB comes with component parameters for easy installation. We only refer the schematic of the amplification part of the circuit. If you need full circuit parameter, please read the component value with the PCB by yourself; we do not provide additionally. please keep test point voltage close enough to it, +-20% is also permitted.

Brocksieper Earmax S.E Rohrenkopfhrerverstrker. Im nahezu perfekten Zustand. Im August 2020 nochmal generalberholt. Wer sich in der Materie auskennt der wei was das fr ein astreines Teil ist was KH Verstrker ist. Aktueller Preis liegt um die 1090 Euro. Damit wir wissen wovon hier reden. . Hier sind nur optisch Miniabltterungen vom Silberlack. Minimal siehe Fotos. Sonst im absoluten Topzustand .

Der Brocksieper EarMax OTL Röhrenkopfhörerverstärker ist ein gebrauchtes HiFi-Gerät, welches ein außergewöhnliches Klangerlebnis bietet. Mit seiner Röhrentechnologie und dem OTL-Schaltungskonzept sorgt er für eine hohe Klangqualität und eine natürliche Wiedergabe. Das Gerät eignet sich besonders für Audiophile, die eine Vorliebe für warmen und detailreichen Sound haben. Der Brocksieper EarMax ist ein Muss für jeden Musikliebhaber, der auf der Suche nach einem außergewöhnlichen Klangerlebnis ist. Ich schließe jegliche Sach­mangelhaftung aus.

MOFI-EMP-Tube-Headphone Amplifier Compared with the commonly reproduction of EMP, we improved: 1?High Voltage?Two-stage buck regulator filter, Two low-pass filter (with a corner frequency of 1.6Hz&16Hz) prevents power noise from being introduced into the amplifier. Provide purer power supply (close to battery). 2?The high-voltage power supply uses MOSFET as pass transistors, which have a sense of tube sound characteristics but rejecting the rectification and regulation noise. 3?high-voltage soft-start feature is included which will take about 5 second to reach the designed voltage protecting the tube from any voltage shock. 4?Using parallel AC heater power supply, the voltage distribution is more accurate, better than the original deign which is series voltage regulator. 5?all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign. 6?PCB is Small with double-sided smt. 7?The triangular tube layout reduces the number of dual-channel common tubes, further improves the separation and reduces crosstalk. 8?More cost-effective sound modification plan. PCB SIZE: 102X152X1.6mm Power requirements: heater volt: AC 6.3V,I?1.2A Best:6.3VAC@2A high volt: AC100~260V,I?0.04A best:120VAC@0.1A Product configuration Finished board: Based on the well-tested board on the standard version kit, we verified all key points' voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test. All finished pcbs are all carefully hand-soldered and fully tests, so the price is higher and less cost performance. Price-sensitive consumers but with have DIY ability are recommended to choose the kit. Schematic & key point of debugging PCB comes with component parameters for easy installation. We only refer the schematic of the amplification part of the circuit. If you need full circuit parameter, please read the component value with the PCB by yourself; we do not provide additionally. please keep test point voltage close enough to it, +-20% is also permitted.

Brocksieper Earmax S.E Rohrenkopfhrerverstrker. Im nahezu perfekten Zustand. Im August 2020 nochmal generalberholt. Wer sich in der Materie auskennt der wei was das fr ein astreines Teil ist was KH Verstrker ist. Aktueller Preis liegt um die 1090 Euro. Damit wir wissen wovon hier reden. . Hier sind nur optisch Miniabltterungen vom Silberlack. Minimal siehe Fotos. Sonst im absoluten Topzustand .

MOFI-EMP-Tube-Headphone Amplifier Compared with the commonly reproduction of EMP, we improved: 1?High Voltage?Two-stage buck regulator filter, Two low-pass filter (with a corner frequency of 1.6Hz&16Hz) prevents power noise from being introduced into the amplifier. Provide purer power supply (close to battery). 2?The high-voltage power supply uses MOSFET as pass transistors, which have a sense of tube sound characteristics but rejecting the rectification and regulation noise. 3?high-voltage soft-start feature is included which will take about 5 second to reach the designed voltage protecting the tube from any voltage shock. 4?Using parallel AC heater power supply, the voltage distribution is more accurate, better than the original deign which is series voltage regulator. 5?all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign. 6?PCB is Small with double-sided smt. 7?The triangular tube layout reduces the number of dual-channel common tubes, further improves the separation and reduces crosstalk. 8?More cost-effective sound modification plan. PCB SIZE: 102X152X1.6mm Power requirements: heater volt: AC 6.3V,I?1.2A Best:6.3VAC@2A high volt: AC100~260V,I?0.04A best:120VAC@0.1A Product configuration Finished board: Based on the well-tested board on the standard version kit, we verified all key points' voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test. All finished pcbs are all carefully hand-soldered and fully tests, so the price is higher and less cost performance. Price-sensitive consumers but with have DIY ability are recommended to choose the kit. Schematic & key point of debugging PCB comes with component parameters for easy installation. We only refer the schematic of the amplification part of the circuit. If you need full circuit parameter, please read the component value with the PCB by yourself; we do not provide additionally. please keep test point voltage close enough to it, +-20% is also permitted.

Brocksieper Earmax S.E Rohrenkopfhrerverstrker. Im nahezu perfekten Zustand. Im August 2020 nochmal generalberholt. Wer sich in der Materie auskennt der wei was das fr ein astreines Teil ist was KH Verstrker ist. Aktueller Preis liegt um die 1090 Euro. Damit wir wissen wovon hier reden. . Hier sind nur optisch Miniabltterungen vom Silberlack. Minimal siehe Fotos. Sonst im absoluten Topzustand .