Maintained! The final model of Ampzilla. A representative American sound with strong, tight low frequencies! The dry, clean-sounding character is the perfect match for vintage speakers of yesteryear. This is a masterpiece machine that briskly drives famous speakers from JBL and Altec. Dullness and small scratches can be seen. (FUJISAWA KOSHI)
Maintenance information: 2026.3.25 Maintained (internal all dismantled Tr/C check. Tr OK. Part of the C constant difference in the board → replacement. Meter lamp deteriorated, pin jack replaced. Internal dirt → cleaning. SP fuse holder ratters → adheres Operation check.)
Accessories: No accessories
Main specifications: 200W+200W (8Ω) perfect balance configuration W445 × H178 × D229 mm 22.7 kg
The price has been drastically reduced! 2026/3/22 sales price 398,000 yen Ampzilla, a masterpiece by genius James Bongiorno, has been revived to the present day. While the overwhelming driving power and intuitive sound remain the same, the freshness of the sound has been improved with the circuit design cultivated through GAS/SUMO. It is recommended not only for large speakers such as JBL, but also for those who want to add a sense of dynamism to modern high-end speakers. Small scratches and dullness can be seen. Serial A2KJ1176, A2KJ1164 (Fujisawa Yukishi)
Maintenance information: 2026.3.22 operation confirmed
Accessories: No accessories
Main specifications: 200W+200W (8Ω) input RCA/XLR switching W267 x H206 x D400 mm 23.8 kg
A woofer that uses an HR diaphragm that is both lightweight and highly rigid. It is characterized by sound quality with a sense of speed while ensuring sufficient low frequency playback capability. You can see the exterior, dullness, and feeling of use (Kobayashi Hitoshi)
Maintenance information: 2026.3.18 Operation confirmed
Accessories: gasket, mounting screws
Main specifications: 16cm woofer, 8 ohms, minimum resonance frequency, 45 Hz, playback frequency band, F0 to 10 kHz, output sound pressure level, 88 dB, magnet weight: 1,090 g, total weight: 3.64 kg, recommended crossover frequency: 2 kHz or less, baffle hole size: φ151 mm, recommended enclosure type, bass reflex
The disposal price has been reduced. Member prices are not applicable. 2025/8/8 sales price 99,800 yen Maintained! It is inexpensive because there are no gaskets. JBL professional 2 inch screwdriver. It is an item that continues to be used today in large horn systems, etc. The quality unique to titanium diaphragms makes the vocal breathing, drum hi-hat, and excellent reality no matter which one you take. There are scratches and stroke marks all over (Kojima Yosuke)
Maintenance information: 2025.8.8 maintained (vibration plate installation adjustment, installation screw replacement, pad dampener replacement terminal ultrasonic cleaning
DCR (SN:88607/8.3 ohm/vibration plate without scratches)
(SN:63434/8.3 ohm/vibrating plate without scratches))
Accessories: none
Main specifications: 2 inch driver, slot diameter: 5 cm; allowable input: 100 W; sound pressure level: 111 dB; frequency characteristics: 500 Hz to 20 kHz; crossover frequency: 500 Hz or more; 16 ohms; diameter: 235 x depth: 132 mm; 13.6 kg/bottle
※Shipping service. This is a brand new item. Mr. Muneshige Nagase called Nazo Otoko is the host of an audio blog popular among high-end audio users all over the country. This book is a compilation of records of 15 years of audio exploration that Mr. Nagase has spelled out on his blog. “Double Woofers,” which was formed in the wake of the JBL 4350, is the origin of that activity, and in addition to high-end amplifiers such as Mark Levinson, Claire, Goldmund, etc., and the JBL 4350, high-end devices coveted by enthusiasts such as Avalon, Apogee, and Full Epilogue have appeared one after another. A must-read book for high end audiophiles.
※Shipping service. We propose equipment knowledge and selection methods from a unique perspective. I think there are many parts that I can sympathize with and that are helpful. /Edited by: Nagasawa Kunishiro /Published by: Ohm
Maintenance information: C (broken, threaded, written) [The condition is determined on a scale of 3 from A to C. (See below for details)] ~ Considering the condition, the price is about 2 percent off the regular used price.