1^ST Step

MARANTZ SA8400 >>> CEC HD53R Ver.8.0 >>> ???

2^nd Step

MARANTZ SA8400 >>> SRS-4040II Signature system (SRM-006tII+ SR-404) / ??? >>> CEC HD53R Ver.8.0 >>> ???

3^rd Step

SONY 9000ES / ??? >>> SRS-4040II Signature system (SRM-006tII+ SR-404) >>> CEC HD53R Ver.8.0 >>> ???

4^th Step

MARANTZ model 7 / ??? >>> SRS-4040II Signature system (SRM-006tII+ SR-404) >>> CEC HD53R Ver.8.0 >>> ???

5^th Step

MARANTZ model 7 / ??? >>> SRM-727II+ SR-404 >>> CEC HD53R Ver.8.0 >>> ???

6^th Step

MARANTZ model 7 / ??? >>> SRM-727II+ 4070 >>> CEC HD53R Ver.8.0 >>> ???