Full maintenance from each unit to the network and exterior! This is a 4343BWX with blue baffles and walnut specifications. The instantaneous power, sharp treble, volume and dynamism of the bass are outstanding. It's one step ahead of current speakers in terms of localization, but it's rare to find a speaker that makes on-mic recordings of all ages sound better than this. There is a scuff on the diffuser (Kobayashi Hitoshi)
Maintenance information: 2024.4.27 maintained (exterior repair, saran net replacement/frame repair, woofer maintenance: edge replacement/cone paper coating, mid maintenance: edge replacement/cone paper coating, driver maintenance: magnetic circuit rust removal/gap cleaning/center adjustment, sound absorbing material replacement, terminal cleaning, tweeter maintenance: magnetic circuit rust removal/gap cleaning, terminal cleaning, Network maintenance: frequency characteristics check, ATT cleaning, terminal cleaning, unit detaching/diffuser repair)
Accessories: saran net, diffuser
Main specifications: 4-way monitor speaker bass reflex playback frequency band 35 Hz to 20 kHz (+- 3 dB) crossover frequency 300 Hz/1250 Hz/9500 Hz impedance 8 Ω output sound pressure level 93 dB dimensions W635 x H1,051 x D435 mm weight 83.9 kg
*Currently sold. Quad condenser speakers It is a revolutionary speaker that embodies founder Peter Walker's idea that a diaphragm should be as light as air. The left and right low range elements come out of the mid and low frequencies with more volume than expected. The high range comes out of the high frequency element in the middle, but it's slightly modest (Mizusaki Ryo)
Maintenance information: 2024.4.30 Operation confirmed
Accessories: power cord, power strip
Main specifications: frequency characteristics 45 Hz to 18,000 Hz total harmonic distortion 100 Hz · 0.5%, 1 kHz · 0.4%, 6.3 kHz · 0.4% impedance 100 Hz · 28 Ω, 1 kHz · 12 Ω, 6.3 kHz · 10 Ω horizontal orientation characteristic 70 degrees vertical orientation characteristic 15 degrees W880 × D265 × H790 mm 18 kg
Maintained. with cabinet! A power amplifier representing the McKinn Golden Age. It has a rich, gorgeous sound with a punch, and is still a popular model. Although it is a transistor amplifier, it is an amplifier that still has a strong tubular atmosphere. The rich, thick characters reproduce the music on a rich scale. Exterior features include chips and bumps on the cabinet. Serial JCT 4858 (Murakoshi Yoichi)
Maintenance information: 2024.4.3 Maintained (electrolytic capacitors (large capacity capacitors use used products of the same type)), resistors, lamps, etc. have been replaced. Missing screws and rings added. panel paint. Solder correction. Pattern correction. Clean VR and SW connectors. Loosen the screws and tighten them. Bias and offset checks. Output audio check)
Accessories: instruction manual (copy)
Main specifications: 250W+250W (stereo 1/2/4/8Ω) 500W (mono 0.5/1/2/4/8/16Ω) input sensitivity (0.75V/2.5V) switchable W411 x H181 x D368 mm 37.2kg
Denon's pre-main amplifier. They generously introduced special custom capacitors, and I can only say that 4 years of development were spent, so it's pretty good. The sound is well grained, and the sound comes out comfortably over the entire area. The exterior is good with no conspicuous scratches. Serial BMM15220700235 (Hiura Katsuji)
Maintenance information: 2024.4.29 sound output confirmed
Accessories: instruction manual, remote control, power cable, original box
Main specifications: 50W+50W (8Ω) 100W+100W (4Ω) PHONO (MM/MC) balance input x 1, unbalanced input x 5, PHONO (MM) input x 1, PHONO (MC) input x 1, EXT. PRE×1 analog audio output terminal unbalanced output (RECORDER) ×1 frequency characteristics 5 Hz to 100 kHz W434 × H181 × D504 mm 29.5 kg
A classic MC boost transformer. With 2 input systems, impedance can be switched to 3.40 ohms, and comes with a PASS line, you can freely enjoy various cartridges and tone arms (Takasaki Atsushi)
Maintenance information: 2024.4.29 Operation confirmed
Accessories: instruction manual
Main specifications: MC boost transformer input 2 systems switchable, primary impedance 40 ohm, 3 ohm switching, secondary impedance 4 kΩ boost ratio 1:10 frequency characteristics 10 Hz to 100 kHz, W97 x H65 x D155 mm, 800 g
Balance cable 1.0m pair Glen optimized copper+polymer coating features a rich three-dimensional, high-contrast expression. The exterior is dull and has a feeling of use (Hiura Katsuji)
Maintenance information: 2024.4.20 continuity confirmed
Accessories: none
Speaker stand for YAMAHA NS-05 and NS-1 Perfect for other companies' small speakers (Takasaki Atsushi)
Accessories: none
Main Specifications: Speaker Stand External Dimensions W250 ✕ H385 ✕ D330 mm Weight 4.0 kg
RCA cable, 1.0 m pair, antistatic, transparent polymer, compression, twisted, 8N copper conductor, SVPE insulation, draws a clean and clear sound image. There is a slight feeling of use (Takasaki Atsushi)
Maintenance information: 2024.4.21 continuity confirmed
Accessories: original box, seal
Balance cable 1.0m pair Glen optimized copper+polymer coating features a rich three-dimensional, high-contrast expression. The exterior is dull and has a feeling of use (Hiura Katsuji)
Maintenance information: 2024.4.20 continuity confirmed
Accessories: none
RCA cable, 1.5 m pair, antistatic, transparent polymer coating, compression stranded, 8N copper conductor, SVPE insulation, draws a clean and clear sound image. There is a slight feeling of use (Takasaki Atsushi)
Maintenance information: 2024.4.21 continuity confirmed
Accessories: original box, seal