Description: HV-1 Headphone Amplifier Finished Assembly Board base on Beyerdynamic A1 Highlights:1. Power Transistors in parallel to enhance the driving force control, Enhance the driving force control, a broader sound field; effective solution to the original A1 ircuit romote A-K-G, S-ennheiser headphones IF weak, the problem of poor control, to enhance the effect is very obvious.2. 300MV headphones dedicated protection circuit, A1 Queen ST 33078 N dual op amp, ST DB139 BD140 power output tube.3. Omron power relay, Than small signal relay have greater contact with copper, lower signal loss.4. For the op-amp separately regulated power AMP, separating degree of ascension.5. Optimized ground treatment, the higher SNR. Parameter:Effective Vp-p 23.47Frequency response, 20 HZ-20 KHZ (+ 0.01, 0.09),signal-to-noise ratio:-90 DB or below,the dynamic response, more than 91 DBtotal harmonic distortion (THD) : < 0.007%intermodulation distortion: < 0.007%stereo separating degree: > 88 DB (1 KHZ)suitable 32-600ohm load.PCB Size: 160mm*110mmWorks Voltage: Dual AC 12 - 16V Main materials:Original ST33078N dual op amp, STDB139-140 power transistor.PHI FK Series main smoothing capacitorJapan ALPS 27 type Potentiometer.1/4W 1% precision metal film resistorsAUDIOPHILE MKP 4U7 400V 3% precision capacitanceOmron G2R - 2 12V Relay 700MV Protection circuit,7 seconds delay connect function. Package:1pc HV-1 Headphone Amplifier Finished Board Payment Method: PayPal preferred Shippment: 1.We provide free shipping to international via China Post Airmail . We can also ship byTNT/EMS/DHL/FedEx for alternative shipping method for corresponding fees. Please let us know before payment if you need split shipment. 2.International shipping requires complicated shipping procedures, If you have not received your shipment within 30 days from payment, please contact us. Returns & Replacements & Repair: We accept returns & replacements within 30 days from the day the customer receive the products, please make first contact within 30 days from receiving the order. Products should be returned in original condition. As a benefit to our customers, we also provide repair within 3 Months from the day when this item is shipped out, after repair is done, we will send you the item, but the customer should pay both shipping ways. Feedback: 1) Your Feedback is really important to us, please take a few seconds to leave great feedback if you are satisfied with our product or service, thank you so much! 2)We always offer the lowest price for best goods and service to you. 3) Please contact us before leaving neutral (3 stars) or negative (1-2 stars) feedback. We will try our best to solve the problem and leave you a happy shopping mood here. Thank you!
Price: 56.05 USD
Location: Wuhan
End Time: 2024-12-02T06:08:52.000Z
Shipping Cost: 10 USD
Product Images
Item Specifics
Restocking Fee: No
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Features: HV-1
Custom Bundle: No
MPN: Does Not Apply
Compatible Model: --
Modified Item: No
Unit Type: Unit
Country/Region of Manufacture: China
Model: HV-1 AMP Board
Compatible Brand: Universal
Unit Quantity: 1pc
Brand: Jooloyo
Color: Yellow
Amplifier Class: A
Type: Board
