VICTOR JVC M-3030 Power Amplifier

Description

A stereo power amplifier that reduces dynamic interference distortion.
The AB / LR independent power supply system which further developed the class A / class B independent dual power supply system adopted by JVC to reduce the dynamic interference distortion is adopted.
Dynamic interference distortion occurs when the current consumption of the class B power amplification stage (output stage) changes drastically according to changes in the signal level and interferes with the class A amplification stage before the output stage that performs voltage amplification. .. In order to solve this problem fundamentally, in the class A and class B independent dual power supply system, the power supply of the class A and class B is separated from the transformer itself, and the power supply for the class A is made constant voltage. This prevents the voltage fluctuation of the class B stage from being transmitted directly to the class A stage, and has prevented the dynamic interference distortion.
The AB / LR power supply system adopted in the M-3030 has been developed to further reduce distortion by dedicating the B-class power supply to the left and right channels.
The twin monaural configuration is adopted in order to reduce the static crosstalk such as the jump interference between a board pattern and a signal wire, the potential difference of an earth line, and the jump interference by a chassis structure.
The ICL (input capacitor-less) circuit which eliminated the coupling capacitor of an input part is adopted.
Model stereo power amplifier
Circuit system Signal circuit: Direct coupling (ICL) Cascode double differential common mode feedback input
Parallel push-pull OCL output
Power supply circuit: Class A / Class B (left and right only) Independent power supply
Effective output
(Both channels drive, 20Hz to 20kHz) 130W + 130W (4Ω)
100W + 100W (8Ω)
Harmonic distortion (8Ω, both channels drive) Effective output: 0.02% or less (20Hz to 20kHz), 0.005% or less (1kHz)
At 50W output: 0.01% or less (20Hz to 20kHz)
At 1W output: 0.01% or less (20Hz to 20kHz)
Intermodulation distortion (8Ω, both channels drive,
50Hz: 7kHz = 4: 1) Effective output: 0.02% or less
37W output: 0.01% or less
At 1W output: 0.01% or less
Output bandwidth (IHF, both channels drive) 5Hz-55kHz (THD 0.02%)
Frequency characteristics (at 1W output) Direct input: 5Hz-100kHz +0 -1dB
Subsonic input: 18Hz-100kHz +0 -3dB
Input sensitivity / impedance 0.9V / 50kΩ (at level control MAX)
S / N ratio 110dB (IHF-A network, input short)
103 (RMS)
Output terminal Speaker: 4Ω to 16Ω
Power supply voltage AC100V, 50Hz / 60Hz
Power consumption 243W (Electrical Appliance and Material Control Law Standard)
550W (4Ω, effective output)
External dimensions Width 420 x Height 166.5 x Depth 300 mm
Weight 19.2kg
Payment
We only accept PayPal payments.
Please pay within 5 days after auction is finished.
Shipping
Free Shipping
Terms of Sale
Money back guarantee within 30 days if returned by customer.
International Buyers - Please Note:
Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility.
Please check with your country's customs office to determine what these additional costs will be prior to bidding/buying.
These charges are normally collected by the delivering freight (shipping) company or when you pick the item up - do not confuse them for additional shipping charges.
Feedback
Feedback is very important for everyone participating in community.
Please kindly leave feedback once you get the package, we will leave same for you.Thanks you!
If things happened please contact us before you leave feedback, we will offer you a satisfactory result.
We are serious seller and will respond asap.
Notice
It is also sold on other sites in Japan, so please bid as soon as possible.