Description: Description Finished HiFi Preamplifier Board DIY Audio Amplifier Board Replacement for Marantz HDAM Classic Preamplifier Description: - The audio linear amplification circuit for Marantz HDAM has excellent sound quality, excellent low frequencies, full mid-range, delicate high frequencies, comfortable listening experience, and the smell of electronic tubes, which is not comparable to the previous stage of the operational amplifier. Unfortunately, the core tube K170 was discontinued in the later stage, and using K246 and K30 cannot restore its beautiful sound quality. - This year, we purchased original replacement transistors for Toshiba with identical characteristics to K170. The SMT contains two 2SK transistors with the same characteristics, saving the trouble of pairing. The distortion index is lower. The output adopts high current BD139 and BD140 as Class A outputs, which have better driving force and can even drive low impedance headphones. Pairing with an amplifier is more convenient. - The material used in this front-end kit is also quite good, with double-sided gold-plated PCB and LM317 337. NOVER gold capacitor voltage stabilization for ON, for WIMA, and for Beijing 718 copper pin resistor, small tube made of BC556 546 with excellent vocals for Philips. Specification: - PCB size: 136 x 122mm - Power supply range: AC14X2 to AC18X2 - Recommended external potentiometer resistance value: 50 - 100K - Frequency band: 10Hz - 40KHz - Output impedance: 47K - Output impedance: 10ohms - Amplification: 4X (by default), you can modify the resistor to set it from 1X to 20X Package Included: - 1 x Preamplifier Board Payment Terms 1. We accept PayPal,Payoneer,Visa Card,Google pay,Credit card etc. 2. We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay. Shipping Terms 1. We will process the order within the handling time ,if you have any questions, please contact us via eBay message or email. 2. For remote regions of DHL/FedEx..., extra shipping costs might be charged. Usually it costs about 30USD-50USD. We will contact you if shipping company informed us your address belongs to remote area. Thanks for your understanding. Return Terms If you receive the item that not satisfied or defective, please do not open case and kindly notify us within 30 days. We will guide you the returning process for replacement or refund. Custom Duties & Taxes 1. It is buyers responsibility to cover the import duties, taxes.We do not charge any taxes and fees, and the possible taxes and fees will be collected by the platform or by third parties such as customs and carriers. 2. Please check with your countrys customs office and inform us what/how much should declare before shipping. Feedback 1. Please kindly leave us a positive feedback and 5 star DSR if you satisfied with our product and service. Please feel free to contact us firstly if you have any problem with your order, we are responsible and credible seller and will solve the issue it for you asap. 2. If you are dissatisfied for any reason, please dont be quick to leave us neutral or negative feedback. We work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you and always leave positive feedback to all our customers.
Price: 32.92 USD
Location: Shenzhen
End Time: 2024-08-27T08:55:02.000Z
Shipping Cost: 3 USD
Product Images
Item Specifics
Return shipping will be paid by: Seller
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Return policy details:
Brand: Unbranded
Type: Preamplifier
Model: N/A
