ขายแอมป์หลอดรุ่นใหญ่ SANSUI AU-111 เสียงดี พลังเยอะ หายากมากๆ พร้อมใช้ Made in Japan
ขายแอมป์หลอดรุ่นใหญ่ SANSUI AU-111 เสียงดี พลังเยอะ หายากมากๆ พร้อมใช้ Made in Japan
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SANSUI AU-111
¥65,000 (released in 1965)
explanation
The finest vacuum tube pre-main amplifier of Mr./Ms. Blackface No. 1.
It was released just when vacuum tubes and transistors were being replaced, and it was released
as the last and highest peak vacuum tube pre-main amplifier of Mr./Ms..
The output tube is 6L6GC, which is operated by the AB1PP fixed bias method.
In addition, the configuration of the multiple negative feedback circuit obtains flat characteristics
over the entire band.
The transformer uses an ultra-wideband output and a power transformer with low constant loss
and excellent regulation. All of these transformers were covered by a lifetime warranty.
The control amplifier uses a four-stage amplification circuit, including a cathode follower.
In addition, all of them are configured with NF amplifiers to suppress noise.
The preamplifier and main amplifier sections are designed to be used independently.
A total of four levels, two low-frequency and two high-frequency levels, are equipped with a tone
control that can switch between ascending and descending points.
It is also possible to freely de-fend each high-frequency and low-frequency independently
(tone circuit cancellation device).
In combination with Mr./Ms. input transformers (A-603, A-604), it can also be used with low-power
MC-type cartridges.
The head amplifier also uses a new silicon transistor (micro-sep).
The first stage of the intermediate amplifier uses a cathode follower circuit with a high input
impedance and a low output impedance.
Two types of tape equalizers.
Low impedance tape recording output terminal with cathode follower.
CR feedback low/high filter.
Loudness control.
There are two types of center output terminals, one for the full band and the other for the
3D method.
Presence control for better bass crispness.
It is equipped with accessories such as tape monitor, phase switching, sub-volume, and headphone jack.
Model Ratings
Model Pre-main amplifier
Rated power Music Power (IHFM): 96W Effective
Output: 45W/45W Stereo
Effective Output (Dual-Channel Operation): 40W+40W
Total Harmonic Distortion 0.8%
Intermodulation distortion rate (50Hz~5.5kHz) 0.8%
Powerband Whiz (IHFM) 20Hz~20kHz (at 0.8%)
Frequency response AUX:20Hz~50kHz ±1dB
Hum & Noise (IHFM) AUX:-80dB
Phono:-70dB
Channel Separation Phono:45dB
AUX:50dB
Residual noise 2mV(8Ω)
Load impedance 8Ω、16Ω
Damping Factor 15
Input sensitivity/impedance (effective output, 1 kHz) Phono1: 0.06mv/3.5Ω (using A-604)
Phono2: 0.2mV/30Ω~100Ω (using A-603)
Tape Head (19cm/s 9.5cm/s): 1.8mV/100kΩ
Tuner, AUX, Tape Monitor: 220mV/500kΩ
Recording Output (Pin Cathode Follower Output) 100x
for Phono2 input 115x for Tape Head input
Center Channel Output 1.5V/48kΩ (at effective output)
Equalizer characteristics Phono1、2:RIAA
Tape Head:NAB(19cm/s、9.5cm/s)
Preamplifier Output 2.1V/710Ω (at effective output)
Tone Control Low:Defeat、250Hz、500Hz
High:Defeat、5kHz、2.5kHz
Bass(50Hz) 250Hz: +11.5dB~-10dB
500Hz: +16dB~-14.5dB
Treble(10kHz) 5kHz: +12.5dB~-11dB
2.5kHz: +7.5dB~-6dB
Loudness control (at -30dB Volume) 50Hz:+9.5dB、10kHz:+5dB
High Filter 20kHz、-25dB、fo=6kHz
Low filter 20Hz、-26dB、fo=125Hz
Semiconductors used, etc.
Vacuum tubes (12 pcs.) 6L6GC: 4 pcs
12AX7: 5 pcs
12BH7A: 2 pcs
6AQ8: 1 pc
transistor 2SC-402: 2 pcs
Diodes (3 pcs.) SW-0.5a: 1 piece
SW-0.5d: 2 pcs
Power supply voltage AC100V/117V/240V、50Hz/60Hz
Power Consumption 280VA (maximum)
External dimensions Width 460 x Height 170 (excluding rubber feet) x Depth 345mm
weight 24.5kg