HIFIboy Audio Preamplifier finished product OPA2604 LME49720 HIFI Amplifier Preamplifier Volume Tone Control Board
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HIFIboy Audio Preamplifier finished product OPA2604 LME49720 HIFI Amplifier Preamplifier Volume Tone Control Board
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HIFIboy Audio Preamplifier finished product OPA2604 LME49720 HIFI Amplifier Preamplifier Volume Tone Control Board

100 % of buyers enjoyed this product!
Availability: in stock
Price:  US $65.88 / piece
Sale Price:  US $57.32 / piece
from AliExpress
45 days Money back 45 days Money back Returns accepted if product not as described, buyer pays return shipping; or keep the product & agree refund with seller.
On-time Delivery On-time Delivery
Guarantees: On-time Delivery 60 days

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USD 15.00-30.00/meterUSD 57.99/lotUSD 13.50-23.50/meterUSD 57.99/lotUSD 13.89-23.89/meterUSD 14.89-24.89/meterUSD 15.75/lotUSD 19.99-42.99/lot

This product contains two options:

Options 1 : Standard Version: one with OPA2604AP and LME49720NA $65.88

Options 2: Gold :seal with sealing version 2 LME4972HA $73.88

Note: Because blue BC capacitor stop production, Now use nichicon instead .

The program is currently the best on the pitch before TAOBAO level, sampling CPI supply. Sounds very delicate, slender high-frequency, low frequency plump and elastic. Can be used with other top Gold seal op amp LME4972HA achieve the perfect sound, And have direct access to functions. You can skip the tone finish achieve complete juice juice flavor. Audio recording of users, the speaker unit, placing the device is not necessarily perfect, pure direct preamp may not be able to meet demand, then added to adjust the tone was very important, you can enhance the effect of high and low frequency Obviously, High-end main capacitor capacitance. Group Power sampling tube BC139 BD140 HIFI name plus TL431, Germany WIMA ERO capacitors and other high capacitance, High-speed rectifiers, copper foot resistance. Panel Description: POWER: Power switch, up to open, shut down for VOLUME: Volume Control BASS: bass adjustment MID: Middle adjustment TREBLE: Treble adjustment (treble turn left bottom, in order to direct function) Full aulminum chassis The back 2 RCA input and output function, the middle two is output Chassis Dimensions: 200 width x 191 depth x45 height Package included: Finished F1 Class A preamp-amplifier X1 PLEASE NOTE: Does not include AC input cable ” Welcome to HIFIboy Store “

1. Ship Worldwide, Free shipping by China Post Registered Air Mail. usually need about 10-39 business days.Received product according to different countries have different number of days. Hope that buyers support and understanding.
2. We ship to worldwide except APO/FPO address. All items will be arranged shipping within Two business day upon payment cleared.
3. Ship by Standard Flat Rate Shipping Service, under normal circumstance, .In most cases, international shipping takes around 10-39 business days (about 1month). We try our best to provide you the most reliable, affordable way of shipping service. But sometimes international delivery is highly depended on the local customs and post service. If you do not receive your item on time, please contact us immediately for further assistance. We will be responsible for any damages or losses incurred in the shipping process.

1. If you are dissatisfied with our item or service, then please contact us by sending message before leaving any feedback. We are committed to resolve all issues in a friendly and satisfactory manner.
2. We always reply messages within 1-2 business days. If you do not get a response from us, then please check your message. and kindly resend.
3. Original and return shipping fee will not be refunded or reimbursed under all circumstances. You must agree and acknowledge this term if you bid for this item. Therefore, please do not complain about having to ship back at your own expense.

1. If have any question, Please contact us by message.
2. We care about our valued buyers, if you have any questions, our Customer Service staffs will be very glad to help you. We try our best to reply to your emails as soon as possible, however, due to high volume of daily incoming emails and time zone difference, we may not be able to reply your emails immediately. Please allow 24 business hours for us to response.

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Our goal is to make sure you are a happy buyer and pleasant shopping with us. Please give us message before leaving any 1 or 2 ratings, neutral, negative feedback or open any dispute. We understand the concerns and frustrations you might have, and will do our endeavor to resolve the issues. Please give us the opportunity to resolve any problem.

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Shipping Company Shipping Cost Estimated Delivery Time
DHL 3 - 7 days
UPS Expedited 3 - 7 days
EMS 5 - 14 days
Post Air Mail Free Shipping 15 - 45 days
Return Policy If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.

N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller Service On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).

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Price:  US $65.88 / piece
Sale Price:  US $57.32 / piece
from AliExpress