Payment and point member | Payment methods | Shipping methods | Warranty policy | Shopping procedure
- All
- All hardware
- All software
- Other
- Amplifiers
- Integrated amplifiers
- Control amplifiers (transister)
- Control amplifiers (tube type)
- Power amplifiers (transister)
- Power amplifiers (tube type)
- Channel dividers
- Tuners
- Other amplifiers
- Channel divider boad
- Integrated amplifiers (transister)
- Integrated amplifiers (tube type)
- Speakers
- Speakers (foreign companies)
- Speakers (Japanese companies)
- Full range units
- Woofers
- Drivers
- Tweeters
- Horns
- Enclosures
- Networks
- Speaker accessories
- Analog equipment
- Turntables
- Tonearms
- Step-up transformers
- Head amplifiers
- Phono equalizers
- Cartridges
- Headshells
- Phonograph
- Digital equipment
- D/A converters
- DAT decks
- MD players
- LD players
- DVD players
- CD players
- CD transports
- Network players
- Tapes
- Cassette decks
- Reel-to-reel decks
- Other tapes
- Accessories
- Accessories
- Cables
- Insulators
- Racks
- Headphone
- Parts
- Parts
- Tubes
- Manual
- Audio set
- Audio set
- Other audios
- Other audio
- Records
- LP jazz
- LP jazz vocal
- LP classic
- LP foreign music
- LP Japanese music
- Single records
- SP
- Other LPs
- Other soft
- Tapes
- Reel-to-reel tape
- Reel-to-reel tape jazz
- Reel-to-reel tape classic
- Other reel-to-reel tape
- Blank cassette tapes
- LD/DVD
- Laser disk
- DVD
- VHS
- Laser disk jazz
- Laser disk classic
- Other laser disk
- Laser disk movie
- CD
- CD jazz
- CD jazz vocal
- CD classic
- CD foreign music
- CD Japaese music
- Single CD
- Other CD
- Books
- Magazines
- STEREO SOUND
- MJ
- Other books
- Swing journal
- STEREO SOUND EX
- TUBE KINGDOM
- TAPE SOUND
- analog
- AUDIO ACCESSORY
- AUDIO PLAN
- AUDIO CRAFT MAGAZINE
- AUDIO BASIC
- JAZZ CRITIQUE
- stereo
- FM fan
- RADIO TECHNOLOGY
- RG
1
- description
- The disposal price has been reduced! (Member discounts are not applicable) 2025/11/19 sales price 128,000 yen Maintained! RCA and VOL have been added, so it's easy to use. The exterior is painted black. 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 is dull and has small scratches over time. Serial 8508 (Yonejima Satoshi) Maintenance information: 2025.11.19 Maintained (internal all inspection → Lch power stage Tr, gain setting C, INPUT VOL replacement. DIN SP rewiring, first drive IC OP AMP replacement) Accessories: power cord Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg
- description
- The price has been reduced. 2026/5/20 sales price 79,800 yen Maintenance was completed in 2025/8. 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. Overall there is dullness (Oikawa Tetsuji) Maintenance information: 2026.5.20 Operation confirmed 2025.8.24 Maintained (±b bypass c in both CH boards, gain setting C replacement Lch power stage Tn x 1, poor characteristics → replacement Operation test) Accessories: power cable, copy of instruction manual Main specifications: output 140W+140W (8Ω) frequency characteristics 20Hz to 20kHz (-0.5dB) 13Hz to 40kHz (-1.0dB) total harmonic distortion ratio 0.01% or less (up to 130W 100Hz/1kHz) input sensitivity 0.5V input impedance approx. 20kΩ crosstalk 100dB (100Hz) 85dB (1kHz) 65dB (10kHz) S/N ratio 105 dB speaker minimum load 4 Ω external Dimensions W321 x H134 x D240 mm Weight 12 kg
- description
- Maintained! Quad power amplifier Although it is a compact body, you can enjoy the sound with a thick core. In particular, it makes me listen to 70s analog sounds with a sense of dynamism. There is dullness, scratches, and paint peeling (Asaine Tomoho) Maintenance information: 2026.5.24 maintained (pattern all re-soldered in the board) 2025.11.18 maintained (internal check pattern repair piece ch check) 2025.7.4 maintained (internal double channel dismantling TN check → OK. DC cut C, gain setting C, etc. exchange ~ operation check) Accessories: power cable, connection cable Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg
- description
- 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 is painted bald. Serial 7135 (Fujisawa Yukishi) Maintenance information: 2026.5.22 Maintained (AC sector router → noise → replacement. Check all capacitors, power transistors, and transistors in both channel boards → replace deteriorated capacitors. Operation check) Accessories: instruction manual, power cord, connection cord Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg
- description
- The disposal price has been reduced. Member discounts are not applicable. 2026/1/11 sales price 128,000 yen Maintenance completed in 2013/1. 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. Exterior, dullness, chipping, bruises, abrasions, etc. can be seen (Kobayashi Hitoshi) Maintenance information: 2026.1.10 operation confirmed 2013.1.18 maintenance completed (each inspection adjustment, RCA terminal installation, VR replacement input/output, balance waveform measurement operation confirmed) Accessories: power cable, copy of instruction manual Main specifications: 100W+100W frequency characteristics 20 to 20 kHz W341 x H115 x D195 mm 9 kg
- description
- Maintained! The RCA terminal has been replaced with a banana-compatible SP terminal. 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. Serial 3803 (Tamura Eiji) Maintenance information: 2026.4.15 Maintained (power stage Tr, driver Tr check. Replace part C and R deterioration in the board. Input DIN terminal rewiring, operation check, RCA, speaker terminal screwing.) Accessories: power cable Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg
- description
- The disposal price has been reduced! (Member prices are not applicable) 2025/11/18 sales price 128,000 yen Maintained! The QUAD405 is full of appeal and makes you listen to the whole picture of the music in a tasteful way. Along with feedforward operation, the high quality, which smoothly transitions to A class operation at low levels and B class operation when the level rises, is also worth listening to. There are scratches, scuffs, and dullness on the exterior. Serial 4546 (Jun Tamai) Maintenance information: 2025.10.12 Maintained (INPUT connector VOL lead resoldering process check) 2025.7.2 Maintained (internal all dismantling checks, Tr, C, R checks, operation checks, rubber, etc.) 2016.12.23 Maintained (Vol replacement, Rch power, Tr replacement, capacitor resistor replacement (both channels) operation check) Accessories: Connection cord, power cord, copy of instruction manual Main specifications: 100W+100W (8Ω) dimensions W341 x H115 x D195 mm weight 9 kg
- description
- The disposal price has been reduced. Member discounts are not applicable. 2025/7/5 sales price 128,000 yen Maintenance has been completed, such as replacement of deteriorated capacitors and transistors. 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. Exterior, paint deterioration, dullness, rust, scuffs, etc. can be seen (Kobayashi Hitoshi) Maintenance information: 2025.7.5 maintenance completed (block C, VOL, rubber feet, power stage Tr, C and R replacement in the board. Input cable creation (DIN4P-RCA female) operation check) Accessories: instruction manual, power cable, connection cable Main specifications: 100W+100W frequency characteristics 20 to 20 kHz dimensions W341 x H115 x D195 mm weight 9 kg
1
Used
Consigned
Hold
Reserved
Sold Out-
-
- Company profile
- Privacy policy
- Contact
- Newsletter back issues
- Hi-Fi Do live camera!
- Today's software
- Today's hardware
- New arrival alert system
- Japanese
-
Hi-Fi Do Online Newsletter
-
Payment methods
-
Shipping methods
-
Warranty policy
-
Shopping procedure
-
Hi-Fi Do Record Shops Softs, Audio parts and Tubes can ship overseas.Ordinary,we use EMS but for large order,we use SAL or Surface.For Asia,it cost 1,200JPY/1LP,900JPY/1CD.Please check at the shipping cost table for more detail.
-
Meaning of icons
