Description
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The standard operating amplifier of this machine is 4 single operating amplifiers (two single operating amplifiers are used for each channel)
Dual transformer power supply, complete independence of left and right channels
FV-2020/2024 both use ALPS 16 volume potentiometers and B-type tone-specific potentiometers
The following is the introduction of FV-2024:
The FV-2024 adopts the STK3048 packaged in Sanyo thick film as the pre-amplifier, and the internalDual operational amplifier structure, the highest voltage can reach ± 50V, which can significantly improve the dynamic range of music, with minimal harmonic distortion. In actual tests, the treble becomes more transparent and delicate than the general operational amplifier, and the bass becomes elastic, sounding very comfortable. This is not the effect that ordinary operational amplifier circuits can achieve.
The STK3048 is a two-channel single-column thick film package with a total of two stages inside, and the input stage is protected by a differential amplifier. The resistor-capacitance series phase compensation network of the collector can prevent the transient distortion of the input stage due to burst signals. A set of mirror current sources is connected between the two collectors. The main voltage amplification stage is a common base and common emitter circuit. The upper tube amplifies the signal wideband and provides impedance matching for the direct coupling between the input and output stages; the lower tube linearly outputs the amplified current of the upper tube to reduce the open-loop distortion of the stage and provide a large excitation power to the subsequent stage. The two-stage amplifying tubes are supplemented by a constant current source as a load, which has strong suppression of power supply ripple.
The famous sealed green Rubik's cube transformer has high efficiency, small magnetic leakage and good output characteristics
The bottom of the red heat dissipation is the STK3048 module, and the periphery is equipped with ELNA, Siemens and other audio capacitors
All use solid all-aluminum knobs, full of texture
Custom Real Gold Plated RCA Terminal Blocks
Additional Information
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Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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