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Brocksieper EarMax Pro einschl. Brocksieper Netzteil EarMax Pro
End: 22.09. 2024 17:13:47 on Sunday
- Condition: Used
- Price: 324.0 EUR
- Status: sold
- Item number: 135253598226
- Bids: 18
- Seller: cristalpalace (589|97.7%)
- Seller information: non commercial
- Item location: Lügde
- Ships to: DE
- Shipping: 6,99 EUR
- on EBAY
-
Description
Hier biete ich einen Kopfhörerverstärker an, den ich kürzlich vererbt bekommen habe und somit selbst nie genutzt habe. Für dieses Angebot habe ich ihn aber kurz in Betrieb genommen, um bestätigen zu können, dass auch alles funktioniert. Es handelt sich um einen Brocksieper EarMax Pro. Wer sich in diesem Metier auskennt, wird am besten bewerten können, wie die Qualität einzuschätzen ist. Man kann auch heute noch diesen Verstärker beim Hersteller, bzw. bei dem namhaften Vertrieb erwerben. Die Details:13x26x14,5 cm, 1,8 Kg (nur der Verstärker) + NetzteilClass A RöhrenGeeignet für Kopfhörer mit einer Impedanz von mehr als 35 Ohm. Idealerweise sollten Kopfhörer mit mittlerer - bis hoher Impedanz zum Einsatz kommen. Zu diesem EarMax Pro gehört auch das original Netzteil von Brocksieper (mit dem entsprechenden Anschlußstecker). Beides funktioniert einwandfrei und ist optisch ohne Makel ! Viel Spaß beim Bieten und später erst recht beim Hören !!! Da es sich um eine Privat-Auktion handelt, übernehme ich keinerlei Garantie und schließe die Rücknahme aus.
Brocksieper Earmax Pro Kopfhörerverstärker
End: 06.05. 2024 17:31:44 on Monday
Brocksieper Earmax Pro Kopfhörerverstärker
End: 03.05. 2024 17:09:23 on Friday
Reference Earmax Pro EMP Tube Headphone Amplifier Brand New Assembled Board
End: 21.04. 2024 00:36:34 on Sunday
- Condition: New
- Price: 23.43 EUR
- Status: unsold
- Item number: 276424596744
- Bids: 0
- Seller: rogerli (1478|100.0%)
- Seller information: Commercial (with base shop)
- Item location: Union City, California
- Ships to: US
- Shipping: 10,0 EUR
- on EBAY
-
Description
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.
Reference Earmax Pro EMP Tube Headphone Amplifier Brand New Assembled Board
End: 14.04. 2024 00:36:04 on Sunday
- Condition: New
- Price: 23.52 EUR
- Status: unsold
- Item number: 276415075044
- Bids: 0
- Seller: rogerli (1475|100.0%)
- Seller information: Commercial (with base shop)
- Item location: Union City, California
- Ships to: US
- Shipping: 10,0 EUR
- on EBAY
-
Description
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.
Reference Earmax Pro EMP Tube Headphone Amplifier Brand New Assembled Board
End: 06.04. 2024 21:44:45 on Saturday
- Condition: New
- Price: 23.11 EUR
- Status: unsold
- Item number: 276405000982
- Bids: 0
- Seller: rogerli (1475|100.0%)
- Seller information: Commercial (with base shop)
- Item location: Union City, California
- Ships to: US
- Shipping: 10,0 EUR
- on EBAY
-
Description
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.
Reference Earmax Pro EMP Tube Headphone Amplifier Brand New Assembled Board
End: 30.03. 2024 21:07:48 on Saturday
- Condition: New
- Price: 23.15 EUR
- Status: unsold
- Item number: 276395272091
- Bids: 0
- Seller: rogerli (1475|100.0%)
- Seller information: Commercial (with base shop)
- Item location: Union City, California
- Ships to: US
- Shipping: 10,0 EUR
- on EBAY
-
Description
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 Pro Kopfhörerverstärker + Cinchkabel!
End: 29.03. 2024 17:10:43 on Friday
Reference Earmax Pro EMP Tube Headphone Amplifier Brand New Assembled Board
End: 23.03. 2024 20:58:10 on Saturday
- Condition: New
- Price: 23.11 EUR
- Status: unsold
- Item number: 276384601209
- Bids: 0
- Seller: rogerli (1475|100.0%)
- Seller information: Commercial (with base shop)
- Item location: Union City, California
- Ships to: US
- Shipping: 10,0 EUR
- on EBAY
-
Description
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.
Kopfhörer Sennheiser HD 800S mit Verstärker Brocksieper EarMax Pro
End: 14.03. 2024 18:26:56 on Thursday
Reference Earmax Pro EMP Tube Headphone Amplifier Brand New Assembled Board
End: 09.03. 2024 19:23:45 on Saturday
- Condition: New
- Price: 22.81 EUR
- Status: unsold
- Item number: 276362361130
- Bids: 0
- Seller: rogerli (1474|100.0%)
- Seller information: Commercial (with base shop)
- Item location: Union City, California
- Ships to: US
- Shipping: 10,0 EUR
- on EBAY
-
Description
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.
Reference Earmax Pro EMP Tube Headphone Amplifier Brand New Assembled Board
End: 24.02. 2024 18:57:43 on Saturday
- Condition: New
- Price: 25.0 USD
- Status: 6T 18:31:59
- Item number: 276340713553
- Bids: 0
- Seller: (|%)
- Seller information:
- Item location: Union City,CA,USA
- Ships to:
- Shipping: 10,0 USD
- on EBAY
-
Description
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.
Reference Earmax Pro EMP Tube Headphone Amplifier Brand New Assembled Board
End: 17.02. 2024 14:54:14 on Saturday
- Condition: New
- Price: 23.21 EUR
- Status: unsold
- Item number: 276328719332
- Bids: 0
- Seller: rogerli (1466|100.0%)
- Seller information: Commercial (with base shop)
- Item location: Union City, California
- Ships to: US
- Shipping: 10,0 EUR
- on EBAY
-
Description
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.
Reference Earmax Pro EMP Tube Headphone Amplifier Brand New Assembled Board
End: 10.02. 2024 03:13:13 on Saturday
- Condition: New
- Price: 23.18 EUR
- Status: unsold
- Item number: 276316474064
- Bids: 0
- Seller: rogerli (1465|100.0%)
- Seller information: Commercial (with base shop)
- Item location: Union City, California
- Ships to: US
- Shipping: 10,0 EUR
- on EBAY
-
Description
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.
Reference Earmax Pro EMP Tube Headphone Amplifier Brand New Assembled Board
End: 03.02. 2024 03:04:17 on Saturday
- Condition: New
- Price: 23.14 EUR
- Status: unsold
- Item number: 276305236860
- Bids: 0
- Seller: rogerli (1462|100.0%)
- Seller information: Commercial (with base shop)
- Item location: Union City, California
- Ships to: US
- Shipping: 10,0 EUR
- on EBAY
-
Description
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 Röhrenkopfhörerverstärker Earmax S.E
End: 02.02. 2024 18:06:03 on Friday
Reference Earmax Pro EMP Tube Headphone Amplifier Brand New Assembled Board
End: 27.01. 2024 02:42:38 on Saturday
- Condition: New
- Price: 23.07 EUR
- Status: unsold
- Item number: 276293784051
- Bids: 0
- Seller: rogerli (1462|100.0%)
- Seller information: Commercial (with base shop)
- Item location: Union City, California
- Ships to: US
- Shipping: 10,0 EUR
- on EBAY
-
Description
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 Röhrenkopfhörerverstärker Earmax S.E
End: 26.01. 2024 18:05:39 on Friday
Brocksieper EarMax OTL Röhrenkopfhörerverstärker
End: 26.01. 2024 12:57:12 on Friday
Reference Earmax Pro EMP Tube Headphone Amplifier Brand New Assembled Board
End: 20.01. 2024 01:29:48 on Saturday
- Condition: New
- Price: 23.01 EUR
- Status: unsold
- Item number: 276281277249
- Bids: 0
- Seller: rogerli (1461|100.0%)
- Seller information: Commercial (with base shop)
- Item location: Union City, California
- Ships to: US
- Shipping: 10,0 EUR
- on EBAY
-
Description
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 Röhrenkopfhörerverstärker Earmax S.E
End: 19.01. 2024 18:05:30 on Friday
Reference Earmax Pro EMP Tube Headphone Amplifier Brand New Assembled Board
End: 13.01. 2024 01:26:53 on Saturday
- Condition: New
- Price: 22.93 EUR
- Status: unsold
- Item number: 276267821347
- Bids: 0
- Seller: rogerli (1460|100.0%)
- Seller information: Commercial (with base shop)
- Item location: Union City, California
- Ships to: US
- Shipping: 10,0 EUR
- on EBAY
-
Description
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 Röhrenkopfhörerverstärker Earmax S.E
End: 12.01. 2024 18:05:11 on Friday
MOFI-Earmax Pro -EMP-Tube-Headphone Amplifier-Brand New Assembled Board
End: 22.12. 2023 18:17:13 on Friday
- Condition: New
- Price: 30.0 USD
- Status: 6T 21:59:31
- Item number: 276230559569
- Bids: 0
- Seller: (|%)
- Seller information:
- Item location: Union City,CA,USA
- Ships to:
- Shipping: 10,0 USD
- on EBAY
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