The price has been drastically reduced! 2025/3/22 sales price 118,000 yen Maintained! QUAD is a power amplifier that combines a wide range and a high sense of SN to the traditional high texture of the sound. Equipped with QUAD LINK, system control is also possible. Extremely practical quality can be obtained from its compact size. There are scratches and marks on the exterior. Serial 99SG0104 (Yamato Yuki)
Maintenance information: 2025.1.17 Maintained (internal parts Tr and CR checks OK. Pin jack position cleaning due to large INPUT rotary torque. Operation check OK)
Accessories: power cable
Main specifications: input RCA/QUAD-LINK: 1 system each input impedance: 33k ohms, input sensitivity: 775mV (RCA input), 1 output system (banana plug can be used), maximum output: 90W/8 ohm, 120W/4 ohms S/N ratio 110dB (20Hz-20kHz) frequency characteristics 3Hz-50kHz external dimensions H70 x W321 x D310 mm mass 6.25 kg
Disposal price has been reduced (member price not applicable) 2025/3/22 sales price 118,000 yen remote control is out of stock. QUAD 99 preamp. Genuine Rocky The QUAD-like design keeps the speaker playing with plenty of atmosphere. It also has sharpness and transparency in the mid to high range, creating a solid effect. The size is also compact and easy to use. The exterior is dull and has threads. Serial 99PG0198 (Tomonori Asaine)
Maintenance information: 2025.3.22 operation confirmed
Accessories: power cord connection cord
Main specifications: input LINE 3 system PHONE 1 system TAPE1 system with PHONO (MM/MC) W321 x H70 x D310 mm weight 4.42 kg
Maintained! It has an elegant and glossy tone, and although combinations with 405 are common, 606 etc. are also a good match. It has the natural texture of the acoustic sauce and the smooth tone that feels good against the skin. The exterior is in good condition, with minor scratches and dullness, and paint peeling on the right side. Serial 24151 (Yamato Yuki)
Maintenance information: 2024.4.12 maintenance (main board ground point screw reprocessing, operation check) 2024.1.17 maintenance (replacement of coupling C, bypass C, etc. in each board, AC SW spark killer C replacement, INPUT switching analog SW through hole pattern re-soldering, power SW internal contact polishing ~ operation check)
2020.6.13 Maintained (balance VR, SW disassembly cleaning. Attach 1 kΩ resistors to both the left and right sides of the flat board. Replaced due to faulty IC. All flat and mother boards have been soldered again. (Check the input/output waveform, check the left and right balance, and perform a comprehensive operation test by connecting the power amplifier to confirm normal operation.)
Accessories: copy of the power cord instruction manual
Main specifications: 2 LINE inputs, 1 PHONO input, 1 phono sensitivity, 1m/3m/10mV switching, W321 x H103 x D203 mm, 4.0 kg
Maintained! Quad power amplifier Despite its compact body, you can enjoy a smooth, thick sound. It really goes well with speakers made in England, and makes you listen to 70s analog sound with a sense of dynamism. The exterior has a feeling of use such as dullness. Serial 39513 (Takahashi Nobuyuki)
Maintenance information: 2025.5.16 maintained (rubber feet x 4 replacement speaker terminal internal damage/mounting fault/output board C defect, pattern failure → replacement pattern correction (terminal is for banana terminals only) power bullet TR/driver TR/IC/tantalum C deterioration replacement connector poor crimping/sound interruption → correction/vol cleaning)
Accessories: Power cable, copy of instruction manual
Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg
The price has been drastically reduced! 2025/5/11 sales price 128,000 yen 2024/7 maintenance completed! Quad power amplifier Despite its compact body, you can enjoy a smooth, thick sound. It really goes well with speakers made in England, and makes you listen to 70s analog sound with a sense of dynamism. The exterior has a feeling of use such as dullness. Serial 46658 (Tomoho Asaine)
Maintenance information: 2024.7.30 Maintained (all internal inspection checks. Tn check OK, replace some resistors in the board. Gain setting C and DC cut C replaced. INPUT VOL CLEANING Operation check)
Accessories: connection cable, power cable
Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg
The digital coaxial cable is 1.5 meters, and the terminal is a pioneer of BNC (with RCA conversion plug) digital cable. It has natural and smooth low frequencies (Murakoshi Yoichi)
Maintenance information: 2025.5.11 continuity confirmed
Accessories: none
Maintained in 2024/6. This is a compact, space-saving quad preamp 34. It has a supple and delicate expressive power that is not inferior to the 44, which is a higher-level model. The supple, uncharacteristic character goes well with vacuum tube power amplifiers. There is a feeling of use such as scuffs scattered on the top plate. Serial Q041639 (Takasaki Atsushi)
Maintenance information: 2024.6.29 maintenance completed (AC line spark killer NG → replacement, mainboard coupling C, bypass C, etc., operation check)
Accessories: copy of manual, power cord
Main specifications: PHONO (MM compatible) module switchable type W321 x H64 x D207 mm 3.2 kg
The disposal price has been reduced! (Member prices are not applicable) 2025/5/1 sales price 128,000 yen Input volume, RCA terminal processing, installation, etc. have been maintained! Although the Quad power amplifier has a compact body, the core is thick, and you can enjoy smooth sound. It really goes well with speakers made in England, and lets you listen to 70s analog sound with a sense of dynamism. There are exterior, feel of use depending on age, paint peeling, sticking marks, scuffs, and small scratches. Serial 2 2022 (Yamato Yuki)
Maintenance Information: 2025.1.24 Maintained (Driver Tr, IC, C replacement. Output board pattern, short correction) 2024.8.9 maintained (SP terminal replacement (original), other internal all checks, characteristic failure due to Rch power stage Tr temperature change → replacement, in-board gain setting C NG, SP limiter circuit C NG → replacement ~ operation check)
2015.8.25 Maintained (RCA terminals installed. IC, capacitor, resistor, input VR, fuse replacement)
Accessories: Power cable, copy of instruction manual
Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg
The price has been drastically reduced! 2025/5/3 sales price 128,000 yen Maintained! Late QUAD44 with CD input terminal. It's not flashy, but the thick, glossy tone is attractive. In particular, it softens female vocals. There is a feeling of use on the exterior, such as dullness and small scratches. Serial Q031658 (Fujisawa Yukishi)
Maintenance information: 2025.5.3 maintained (power supply SW contact cleaning/correction, IC all replacement, symptoms occurred even after check, push buttons, input selector board replaced)
2023.10.22 Maintained (Acre sectorable terminal caulking defect? → soldering. Balance Vol, Filter Vol, SW Cleaning AC spark killer NG, internal in-board bypass C, coupling C replacement)
Accessories: copy of instruction manual, power cord
Main specifications: 2 LINE inputs, 1 PHONO input, 1 phono sensitivity, 1m/3m/10mV switching, W321×H103×D203 mm
The disposal price has been reduced! (Member prices are not applicable) 2025/1/18 sales price 128,000 yen 2024/8 maintenance completed! Quad power amplifier Despite its compact body, you can enjoy a smooth, thick sound. As expected, it is compatible with speakers made in England, and it makes you listen to 70s analog sounds with a sense of dynamism. There are peeling scratches in places and a feeling of use. Serial 6105 (Asaine Tomoho)
Maintenance information: 2024.8.6 maintained (2 Rch power Tr installed, fuse installed. C, R check. Replace the rubber feet. Operation check)
Accessories: Power cable, connection cable, copy of the instruction manual
Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg
※Shipping service. 40th Anniversary of the First Issue = Special Issue 159 = Jewel Compact Speaker: Hear That Taste/Quad ESL2805/Luxman C1000F/Claire EVO Series Detailed Report/Enjoy Vintage/Released on 2006.7.15. Since the photograph is a sample, the actual product may be broken or there may be markings etc.
The disposal price has been reduced. Member discounts are not applicable. 2025/1/19 sales price 128,000 yen Maintained! It has an elegant and glossy tone, and the output sensitivity can be selected from 3 levels. Combinations with 405 are common, but 606 etc. are also a good match. It has the natural texture of the acoustic sauce and the smooth tone that feels good against the skin. The exterior has dullness and small scratches over time. Serial 23428 (Murakoshi Yoichi)
Maintenance information: 2025.1.18 maintained (INPUT switching analog SWIC, power supply filter C, in-circuit coupling C, AC switch spark killer replacement, balance VOL, filter VOL cleaning)
Accessories: instruction manual (copy), power cable, input cable x 2, output cable x 1
Main specifications: 2 LINE inputs, 1 PHONO input, 1 phono sensitivity, 1m/3m/10mV switching, W321×H103×D203 mm
Pair tube 12E1 equivalent tube British beam quadrupole top plate measurement value 56/54 (rejected value 40) There is writing on the top of the tube head with original box*Pairs are determined based on GM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube 12E1 equivalent tube British beam quadrupole top plate measurement value 62/56 (rejected value 40) There is writing on the top of the tube head with original box*Pairs are determined based on GM values measured with the test machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube (checked with a tube checker) beam quadrupole. There is a tea box. Measured value 36,34/30 (rejection value) *The pair was determined based on the GM value measured by the testing machine TV-7. The ※ logo is scratched, so it's a bargain.