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Description
About The Product
A937 is a high-performance portable mini-sized valve signal preamplifier, sound quality processor, built-in high-performance boost processor and signal amplifier, with respect to circuit design, it assigns I/O signal processing and amplification function to the most classical valve 6J1. This valve is specifically used for high-performance audio system design, with ultra-low harmonic distortion, low noise, high gain bandwidth and other features. Dual FET input provides a wider dynamic range, as well as audio signal amplification and bipolar circuit for the valve. The valve sound enhancement processing technology can correct and restore signal loss and phase deviation caused by the audio signal system due to various reasons, thus faithfully reproducing sound, making listener feel enriched bass and treble, the sense of positioning, clarity and brightness are close to the ideal scene effect, the addition of audio signal enhancement circuit to acoustic system will make the sound more beautiful, bring about the enhanced sense of depth, fineness and clarity, fine treble, transparent and mellow tenor, natural and mellow bass, as if listener is placed on the scene. Valve signal preamplifier is mainly used for signal input, e.g.: computer, cellphone, tablet, game console, TV set, TV box, MP3, signal source output device and other signal input, product I/O uses the universal RCA interface, audio signal amplification switch. The product has a wide range of application, which is applicable to any kind of signal input device, or alternatively used as signal preamplifier, the power supply and signal uses the boosted module for implementing voltage isolation technology, and applies high-precision Taiwan made potentiometer for balancing and calibration, with extreme high degree of positive/negative voltage balance. Additionally, it has high-capacity professional filter capacitor for filtering, and the power supply is considerably clean. Signal amplification is cleaner.
Note: In case of product noise, it may be caused by:
1. The valve is not properly inserted, carefully examine to insert the valve again, please properly insert the valve in power-off state.
2. The product is a preamplifier with signal amplification, if the audio source has noise, it may amplify the noise of audio source, please appropriately use the audio signal playing.
3. For noise caused by poor quality of signal line or poor power filter, alternatively exchange the signal line or use the power supply for audio signal playing.
Features
1. A wide range of combination and strong applicability: It can be combined with all audio signals available in the market: power amplifier and active speaker with analog and digital signal input, etc.
2. Classic valve 6J1 design: It adopts the classic valve 6J1 design, optimized circuit, the valve design is exchangeable, which produces soft, sweet and mellow sound.
3. Power conversion module: The product adopts AC-DC power design, DC12V power source, available for universal application.
4. Prominent workmanship, highlight personal style: The product adopts the all-aluminum shell through CNC technology.
5. Use boost mode, high-voltage power supply: Better than common power supply mode, AC100V-240V
6. Soft tone, mellow vocal base, sweet and warm, transparent and classic.
7. The valve amplifier has its own "valve taste", with warm and classic sound, good sense of music, good atmosphere, its significant advantage is the sweet and soft sound, natural concern, particularly its extent of great dynamic range and good linearity can be easily substituted by other devices.
6J1 Parameter
1. Filament voltage: 6.3V, current: 0.17A.
2. Plate voltage: 120V, current: 7.35mA.
3. Second-grid voltage: 120V, current: 3.2mA.
4. Transconductance: 5.2mA/V.
5. Cathode resistance: 200ohm.
A937 is a high-performance portable mini-sized valve signal preamplifier, sound quality processor, built-in high-performance boost processor and signal amplifier, with respect to circuit design, it assigns I/O signal processing and amplification function to the most classical valve 6J1. This valve is specifically used for high-performance audio system design, with ultra-low harmonic distortion, low noise, high gain bandwidth and other features. Dual FET input provides a wider dynamic range, as well as audio signal amplification and bipolar circuit for the valve. The valve sound enhancement processing technology can correct and restore signal loss and phase deviation caused by the audio signal system due to various reasons, thus faithfully reproducing sound, making listener feel enriched bass and treble, the sense of positioning, clarity and brightness are close to the ideal scene effect, the addition of audio signal enhancement circuit to acoustic system will make the sound more beautiful, bring about the enhanced sense of depth, fineness and clarity, fine treble, transparent and mellow tenor, natural and mellow bass, as if listener is placed on the scene. Valve signal preamplifier is mainly used for signal input, e.g.: computer, cellphone, tablet, game console, TV set, TV box, MP3, signal source output device and other signal input, product I/O uses the universal RCA interface, audio signal amplification switch. The product has a wide range of application, which is applicable to any kind of signal input device, or alternatively used as signal preamplifier, the power supply and signal uses the boosted module for implementing voltage isolation technology, and applies high-precision Taiwan made potentiometer for balancing and calibration, with extreme high degree of positive/negative voltage balance. Additionally, it has high-capacity professional filter capacitor for filtering, and the power supply is considerably clean. Signal amplification is cleaner.
Note: In case of product noise, it may be caused by:
1. The valve is not properly inserted, carefully examine to insert the valve again, please properly insert the valve in power-off state.
2. The product is a preamplifier with signal amplification, if the audio source has noise, it may amplify the noise of audio source, please appropriately use the audio signal playing.
3. For noise caused by poor quality of signal line or poor power filter, alternatively exchange the signal line or use the power supply for audio signal playing.
Features
1. A wide range of combination and strong applicability: It can be combined with all audio signals available in the market: power amplifier and active speaker with analog and digital signal input, etc.
2. Classic valve 6J1 design: It adopts the classic valve 6J1 design, optimized circuit, the valve design is exchangeable, which produces soft, sweet and mellow sound.
3. Power conversion module: The product adopts AC-DC power design, DC12V power source, available for universal application.
4. Prominent workmanship, highlight personal style: The product adopts the all-aluminum shell through CNC technology.
5. Use boost mode, high-voltage power supply: Better than common power supply mode, AC100V-240V
6. Soft tone, mellow vocal base, sweet and warm, transparent and classic.
7. The valve amplifier has its own "valve taste", with warm and classic sound, good sense of music, good atmosphere, its significant advantage is the sweet and soft sound, natural concern, particularly its extent of great dynamic range and good linearity can be easily substituted by other devices.
6J1 Parameter
1. Filament voltage: 6.3V, current: 0.17A.
2. Plate voltage: 120V, current: 7.35mA.
3. Second-grid voltage: 120V, current: 3.2mA.
4. Transconductance: 5.2mA/V.
5. Cathode resistance: 200ohm.
Cancellation Policy:
We at Order2india strive to provide you with the best possible experience while you shop with us online. Since our orders are shipped from overseas , we try to reduce the handling time as much as possible by quickly processing the orders , Hence any cancellation request , has to be placed within 24 hours of placing the order. The refund amount will be credited back on your original mode of Payment. .
Warranty:
All our products comes with a default 90 days seller replacement warranty against manufacturer defect as a service and reassurance to our customers. Order2india will take care of all logistics to and from the manufacturer/supplier for replacement . If within 90 days of delivery ,any problem is found with our product , please contact our customer support and we would replace it for you absolutely free.
Return Policy
Our return policy is outlined below. The policy reflects the reality that our products are sourced from suppliers located outside India and is formulated keeping in mind the costs and time involved in the logistics, both in the forward direction (i.e. shipping products to India from the suppliers) and reverse direction (i.e. shipping returned products back to the suppliers).Certain products are not eligible for return or refund as below
Return Process & Timeline
For eligible products, the policy is summarized below. Please note that Returns that do not meet the Return Process and Timeline below will not be eligible for a refund.
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Allowed Time Line |
Return Process |
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Due to Damage in transit |
Within 24 hours of Delivery |
Inspect package before taking Delivery and if damaged REJECT package and DO NOT take delivery from the courier and Send email to support@order2india.com within 24 hours of rejecting the delivery so we can process your refund. |
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Dead on Arrival or mal-functioning product |
Within 15 days of Delivery |
Contact us or email us at support@order2india.com within 15 days of delivery with details of the problem. |
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Incorrect Order (e.g. model, brand, color or size different from what was ordered) |
Within 15 days of Delivery |
Contact us or email us at support@order2india.com within 7 days of delivery with details of the problem. |
We process your payment information securely. We do not store credit card details nor do we have access to your credit card information.
If you receive a parcel with missing, incorrect, or secondary packing items, please contact us within 7 days of delivery with relevant proof. Order2india will assess the situation and provide resolution based on the extent of the damage.
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