A model that inherits the lineage of 4312. The sense of speed and range has been improved with a completely renewed unit, and it has been transformed into a high-fidelity speaker that can play all kinds of sources with a clean sound with good damping. There is a light thread on the top of the exterior. Serial 13466 13432 (Murakoshi Yoichi)
Maintenance information: 2024.6.6 sound output confirmed
Accessories: saran net
Main specifications: 3-way 3-speaker bass reflex impedance 6 ohms playback frequency band 45 Hz to 35 kHz output sound pressure level 93 dB size W362 x H597 x D299 mm weight 17 kg
All units have been overhauled, including the woofer, mid, driver and tweeter, and network! It is an individual that has been fully restored, including the exterior. The original 4343 by All Alnico, the original 4343 of 4343! The crisp low frequencies and punchy high frequencies are unbearable, and popularity continues unabated even now. The dynamic sound typical of JBL has been revived due to maintenance. It is a famous monitor that can best reproduce the sound source of on-microphone recordings regardless of age or genre (Sasaki Shota)
Maintenance information: 2024.4.4 Maintained (exterior repair/gray paint. Front and rear baffle repair and painting. Saran net replacement/frame repair. Woofer maintenance: edge replacement, corn paper coating. Midmaintenance: edge replacement, corn paper coating. Driver maintenance: magnetic circuit rust removal/gap cleaning/center adjustment, sound absorbing material replacement, terminal cleaning/screw replacement. Tweeter maintenance: magnetic circuit rust removal/gap cleaning, terminal cleaning/screw replacement. Network maintenance: frequency characteristic check, ATT cleaning, terminal cleaning/screw replacement, switching SW contact cleaning, high frequency capacitor replacement)
Accessories: none
Main specifications: 4 way 4 speaker bass reflex type 2405/2420/2121/2231A crossover 300Hz/1250Hz/9500Hz 8Ω 93dB W635 x H1,051 x D435 mm 83.9 kg/book
Set of 5 LP/SP switchable replacement needle for Columbia PU-1270, PU-1280, and SPC-310 DTS-2 compatible Unopened, operation unconfirmed (Hiura Katsuji)
Maintenance Information: Operation Unconfirmed
Accessories: original box
Fully overhauled on 2023/12/13! A JBL professional series speaker that combines the mid-high range of a biladial horn, which is characterized by wide directional characteristics, and a 38cm woofer with excellent low frequency reproduction. It is possible to combine high range stretchability while maintaining 2-way mid-range energy in response to professional field requests. You can enjoy a variety of music, mainly jazz, with excellent punching power that cannot be heard on current speakers. ※The notation on the terminal board has disappeared (Mizushima Itsuro)
Maintenance information: 2023.12.12 Maintained (exterior repair, polishing, oil finish, front and rear baffle, hakama, horn repair, painting. Saran net replacement. Woofer edge replacement/cone paper coating. Driver magnetic circuit gap cleaning, center adjustment, sound-absorbing material replacement, terminal cleaning. Network frequency characteristic check, ATT cleaning, terminal contact cleaning)
Accessories: saran net
Main specifications: 2 way bi-radial horn 2235H/2421A 93db W556 × H908 × D480 mm 79.5 kg
XLR female to mono mini jack cable 4.5m unusual combination microphone cable. Can also be used as a normal microphone cable using standard jack conversion (Murakoshi Yoichi)
Maintenance information: 2024.4.11 continuity confirmed
Accessories: none
Victor DTS-2 compatible Replacement needle for DTS-2 and STS-2 Operation not confirmed (Murakoshi Yoichi)
Maintenance information: operation unconfirmed
Accessories: original box
The price has been drastically reduced. 2024/3/2 sales price 99,800 yen Maintained! professional monitor amplifier It has strength unique to commercial use, and the driving power in the low range is truly remarkable. However, it also has a strong sense of temperature typical of a quad, so it is an amplifier that I would like people who are shunned when the sound is too straight for commercial use to try it once. You can see a feeling of use, such as appearance, dullness, abrasions, etc. (Kobayashi Hitoshi)
Maintenance information: 2024.3.2 maintained (internal dismantling all check, Tr, C, R check, ±B INPUT bypass C replacement, Tr, R, etc., all OK, INPUT photocoupler check, operation check)
Accessories: copy of instruction manual, power cord, dedicated SP cord (cable length 2.5 m)
Main specifications: 100W+100W (8Ω) W483 × H88 × D310 mm 12.5 kg
The price has been reduced. 2024/5/10 sales price 99,800 yen Maintained. professional monitor amplifier It has strength unique to commercial use, and the driving power in the low range is truly remarkable. However, it also has a strong sense of temperature typical of a quad, so it is an amplifier that I would like people who are shunned when the sound is too straight for commercial use to try it once. There is a feeling of use such as a scuff on the top plate. Serial Q002959 (Mizushima Itsuro)
Maintenance information: 2024.2.15 maintenance (internal Tr, C, R check, output phase correction resistor, DC IN± bypass C, gain setting C, CDS replacement within the INPUT photocoupler. INPUT VOL CLEANING Output cable XLR cannon attached)
Accessories: copy of instruction manual, power cable, speaker cable
Main specifications: 100W+100W (8Ω) W483 × H88 × D310 mm 12.5 kg
The price has been reduced. 2024/5/23 sales price 79,800 yen Maintained in 2015. The 606 is thick and unimaginable from its compact exterior. The good sound unique to QUAD allows you to enjoy not only classical music, but also jazz vocals in a mild way. The high level of musicality that makes you enjoy the music with a pleasant tone stands out. There is deterioration in exterior paint (Murakoshi Yoichi)
Maintenance information: 2015.9.12 maintenance completed (internal power transfer → malt plane deterioration → dismantling and reinstallation, exchange of both channel in-board bypass C, gain setting C, etc., TR check → OK, operation inspection check)
Accessories: power cord
Main specifications: output 140W+140W (8Ω) W321×H140×D238mm 12kg
The price has been reduced. 2024/5/19 sales price 54,800 yen ※Currently sold. JBL/UREI professional power amplifier Dynamic sound with clear contours and momentum. The driving power that makes it easy to drive even large speakers at a high volume is attractive. It can also be used as mono power by connecting to a bridge. There are conspicuous abrasions on the exterior and top plate, and a feeling of use such as dullness and scratches can be seen (Kobayashi Hitoshi)
Maintenance information: 2024.5.19 Operation confirmed
Accessories: none
Main specifications: 150W+150W (8Ω) 300W+300W (4Ω) input 2 systems (phone/XLR) W483 x H180 x D260 mm approx. 20 kg
※1 bottle only. The RCA cable uses a 0.6 m 6N-7N hybrid conductor and twin core structure. The cable is thick and powerful in the mid-range, making it a great cable for vintage audio. There is slight dullness on the plug part (Murakoshi Yoichi)
Maintenance information: 2023.7.20 Continuity confirmed
Accessories: none
Power cable, 0.4 m, no terminals, 6nCu+OFC new hybrid 2-core conductor Although it is the company's entry model, it is a power cable with low noise, stable sound, and high C/P (Kanai Hidetsugu)
Maintenance information: 2023.12.9 Continuity confirmed
Accessories: none
Balance cable 1.0m pair stress-free 6N conductors Sound quality that is thicker than AcroLink and has a natural texture that shines with good balance. It is a character that is compatible with a wide range of devices. In addition to cracks in the exterior and plug, dullness and a feeling of use can be seen (Kobayashi Hitoshi)
Maintenance information: 2024.5.12 continuity confirmed
Accessories: none
The 1.3 m power cable uses a polymer polyolefin material for the untreated terminal sheath. The thickness, which can be called overspec, ensures high speed and large current capacity. You can see the exterior, dullness, threads, etc. and a feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.4.19 Continuity confirmed (PSE certified product)
Accessories: none
Only 1 speaker cable uses a new conductor by hybridizing 4 types of materials, including the innovative HiFC and PCUHD wire materials, with an exquisite golden ratio, centering on an untreated ultra-high purity 6NCU at the end. It's a clear high range, a plump middle range, and a heavy low range. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2024.5.5 continuity confirmed
Accessories: none