YAMAHA Integrated Amplifier CA-R1 AC100V Working Properly #6569

Description

Description
Effective output 8Ω: 65W + 65W (20Hz to 20kHz 0.05% THD)
Reproduction frequency PHONO1,2,3 (RIAA deviation): 30Hz to 15kHz ± 0.3dB MAIN IN → SP OUT: 10Hz to 100kHz + 0, -1.5dB S / N ratio PHONO1,2:83dB PHONO3 (MC): 73dB (input 50Ω short) MAIN IN: 115dB Dimensions 435W x 160H x 337Dmm / 12kg
Integrated amplifier released by Yamaha in 1976 Yamaha started as a musical instrument manufacturing company in 1887, and founded the audio division in 1967, and also has its own excellent amplifier from the beginning. I made it
I got a high evaluation with CA-1000 and established a brand image with an integrated amplifier
After that, I made use of the technology of CA-1000 series and separate amplifiers CA-S1, CA-R1, We have developed integrated amplifiers with model numbers of "CA-001" such as CA-G1, CA-Z1, CA-A1.
The core model among them is CA-, which will be sold online this time. It is R1.
The equalizer circuit has a configuration of current mirror differential input using super low noise pair FET developed by Yamaha → Darlington connection emitter grounded amplifier → pure complementary SEPP output stage.
Furthermore, 2 The first stage is a grounded-emitter amplifier circuit with a Darlington connection of low-noise PNP transistors, which has a high input impedance, lightens the load on the first stage, and secures sufficient gain.
The circuit configuration of the main amplifier is fixed at the first stage. Current bias Differential amplifier with current mirror → Cascode connection Predrive stage → Darlington connection Pure complementary SEPP OCL drive ・ Output stage and PC limiter type transistor protection circuit
Input / output is PHONO3 system, Two systems of TUNER, AUX, and TAPE were installed.
In addition, PRE OUT and MAIN IN connected by jumper pins were also installed so that the pre section and main amplifier section could be used separately.
The two TAPE systems were also capable of mutual dubbing.
In particular, the PHONO input is provided with a PHONO SELECTOR in addition to the INPUT SELECTOR, and the PHONO 1 can select the load impedance from 47kΩ, 68kΩ, and 100kΩ with this SELECTOR.
PHONO2 was fixed at 2.5mV / 47kΩ and PHONO3 was in a position dedicated to MC cartridges.
There are scratches and dirt.
February 2021 Condenser replacement etc. Is
Please contact us whenever you have questions.
customer feedback
◎I've started to order the items from Japan in other online shops a year ago and never had the problems with quality and delivery to Moscow by EMS from Japanese side, everything was perfect and fast.
◎Carefully packaged! Great product in mint condition! A+ seller! おりがとうございました??
◎I'll buy from this seller again. Looking first in his shop. Great service.
◎Wonderful! Item exactly as described!! Top-rate seller!
◎Very happy with this seller, well packed, doll is lovely thanks very much..
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