Optonica SM-2000 Integrated Amplifier Ser. No 40600040 Refurbished Serviced Unit

Description

Optonica SM-2000 Integrated Amplifier Ser. No 40600040 Refurbished Serviced Unit
Optonica SM-2000 Integrated Amplifier Ser. No 40600040 Refurbished Serviced Unit
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Optonica SM-2000 Integrated Amplifier Ser. No 40600040 Refurbished Serviced Unit
Optonica SM-2000 Integrated Amplifier Ser. No 40600040 Refurbished Serviced Unit
Thank you for visiting our store. In order to serve you better during this pandemic, we are now offering express shipping with Fedex, EMS, Yamato, and UPS so that you may receive your parcel shortly. We will select the carrier based on the item's weight, dimensions, and country restrictions.
Optonica SM-2000 Integrated Amplifier Ser. No 40600040 Refurbished Serviced Unit
The changeover switch allows the preamplifier and power amplifier to be used independently.
The NF type tone control using a high gain IC is adopted as a tone control part.
This circuit is also equipped with a tone defeat switch, and a flat characteristic can be obtained with one switch.
The mic mixing circuit is carried.
Inspection / maintenance / adjusted.
Operation is good w/out problem.
The integrated amplifier which combined the power amplifier of a pure complimentary OCL circuit, and the integrated preamplifier.
The two-power-supply differential single-stage full-stage direct connection pure complimentary circuit is adopted as a power amplifier part, and low distortion and flat characteristics over a wide band are realized.
The preamplifier part has adopted the high-performance IC which passed the German DIN standard, and has condensed the work of more than 22 transistors.
The protection circuit is equipped with a purely electronic protection circuit using a newly developed IC. Even if the output terminal is short-circuited by mistake, the IC works to protect the power amplifier.
Moreover, the relay type protection circuit is adopted for speaker protection, and the shock sound at the time of switch-on is eliminated using the timing of relay operation.
The rotary type tape monitor switch is adopted and the change of a tape deck and the dubbing from a tape to other tapes can be performed easily.
The audio muting function is carried, and a play level can be lowered by 20dB with one switch.
The changeover switch allows the preamplifier and power amplifier to be used independently.
The NF type tone control using a high gain IC is adopted as a tone control part.
This circuit is also equipped with a tone defeat switch, and a flat characteristic can be obtained with one switch.
The mic mixing circuit is carried.
Equipped with high cut filter.
Model
Integrated amplifier
Effective output
25W + 25W (8Ω, both channel operation, 1kHz)
31W / 31W (8Ω, one channel operation, 1kHz)
Music power
70W (8Ω, IHF)
Total harmonic distortion
0.3% (effective output, 8Ω)
0.05% (rated output: -3dB, 8Ω)
Cross modulation distortion
0.15% (at the time of an effective output, 8ohms)
0.1% (at the time of an Output power -3dB, 8ohms)
Output bandwidth
15Hz-30kHz (IHF)
SN ratio
100dB (closed circuit)
Input sensitivity / impedance
450mV / 50kΩ
Dumping factor
35
Input sensitivity / impedance
Phono1, 2: 2.5mV /
50kΩ Tner, Aux
: 150mV / 50kΩ Tape play: 150mV / 40kΩ
Mic: 2.5mV
SN ratio
Phono1, 2: 60dB or more
Tuner, Aux, Tape play: 75dB
Maximum allowable input
280mVp-p (1kHz)
Output level
Tape rec1, 2 (Pin): 150mV
Tape rec (DIN): 30mV
Pre out: 450mV
Frequency characteristic
Phono1, 2: RIAA deviation 40Hz ~ 15kHz ± 1.5dB
Tone control
Bass: ± 10dB
Treble: ± 8dB
filter
High filter: 7kHz, 6dB / oct
Loudness control (rated output -30dB)
+ 6dB (100Hz), + 4dB (10kHz)
power outlet
Power switch interlock: 1 system
Power switch non-interlock: 1 system
Power-supply voltage
AC100V, 50Hz / 60Hz
Rated power consumption
42W (Electrical Appliance and Material Control Law)
External dimensions
Width 417x height 157x depth of 297mm (including rubber feet and knobs)
weight
8.3kg/18.2 lbs
This unit has been serviced and it's in good working order. Please inspect images for condition reference.
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Thank you for visiting our listings. Please confirm availability before buying from us. Although we update our 10,000 plus inventory every 24 hours. Some item may sell locally in between that time and we may need to cancel the order.
In case you are looking from something specific we don’t have it listing please feel free to contact us we may get it for you at a good price.
User instructions are mostly written in Japanese. Voltage is 100~110V (+/- 10%) no problem for USA or Canada. Now, for countries with 220~240V please use a step down transformer.
Import taxes will be the responsibility of buyers. If you buy and cancel because you changed your mind you will be requested to pay paypal fees since paypal fees are no longer reversed since October 2019.
Thank you for visiting our listings. Although we update our inventory every 24 hours, However, some items may sell locally in between that time and we may need to cancel the order. Please confirm availability before buying from us.
Import taxes are responsibility of buyers.
CAUTION : User instructions are mostly written in Japanese. For electronic products the voltage is usually 100~110V (+/- 10%) no problem for USA or Canada. Now, for countries with 220~240V please use a step down transformer.