Restorations and upgrades NAD 2400 Upgrades The NAD 2400 was a THX certified 100w per channel amp that came out around…QuirkAudioDecember 28, 2022
Restorations and upgrades Kenwood mono blocks-L08M & L07M Kenwood made some extraordinary mono block amplifiers during the late 1970's and early 1980's. One…QuirkAudioNovember 26, 2022
Restorations and upgrades NAD 1300 Preamp The NAD 1300 was originally produced in the late 1980's. The design is based on…QuirkAudioAugust 12, 2022
Restorations and upgrades APT Preamp The APT preamp, designed by Tom Holman was a very advanced design for its time…QuirkAudioDecember 26, 2021
Restorations and upgrades NAD C370 Integrated amp The NAD 370 is a 120w per channel integrated amp from around 2001. The design…QuirkAudioDecember 26, 2021
Restorations and upgrades Adcom GFP 555 upgrade This is an ADCOM GFP 555- a Mk1, which a customer for whom I had…QuirkAudioDecember 26, 2021
NADpower amplifierRestorations and upgrades NAD C272 The NAD C272 is a 150w per channel power amp from the early 2000's. This…QuirkAudioJanuary 25, 2021
Restorations and upgrades NAD 2155 I recently upgraded a pair of NAD 2155 power amps. These are stereo 50w per…QuirkAudioJanuary 25, 2021
Restorations and upgrades Sansui Au505 and Au555 Restorations Sansui Au505 The Sansui AU 505 is a low power capacitor coupled stereo amplifier from…QuirkAudioNovember 24, 2020
Restorations and upgrades NAD 2200 upgraded review One of our customers had a NAD 2200 that had been upgraded submitted to the…QuirkAudioJune 10, 2020