Thought I'd revive this old (but not so old) thread. Just purchased a Alpha 400, will post pics as soon as it arrives in keeping with the theme of the thread.
Question, why do some some of the amps have the led metres (or whatever type metres they are) and others don't? I like the clean look of the 400 but I gotta say those metres sure are pretty.
Nikko did not put the meters on their smaller amps. One exception is their very first amp the Alpha I. It was a 220 w/ch, no meters and no on/off, but a power indicator. The next amp up from your 400 are the 600, 800, and 2000; they all have meters (Analog type) mounted sideways. These were unique to this series of amps. If you look further back in this thread yo will see one. It has blue colored meters. It was the last of Nikko.
Going backwards in time...
Same is true for the Alpha 130 (100 w/ch), it had no meters, just peak lights, but the Alpha 230 (120w/ch) and 450 (220w/ch) both had meters, however these were all LED meters. The Alpha 230 and 450 originally came in all white lettering. Later they changed the lettering to red. The Alpha 650 (330 w/ch) stayed with Analog meters (my second favorite).
Prior to that was Alpha 220 and 440 both had LED meters. These were similar to the 230 and 450 except the LED columns were under seperate glass panels. the 230 ann 450 were inside one glass window (minor look difference)
Then going back to the Alpha I (220 w/ ch), it had no meters, not even a power switch (very good looking amp to me), then the Alpha II (120 w/ch) had the light greenish analog meters (my favorite; classic Nikko look), Alpha VI (300 w/ch) had the same but larger light greenish analog meters. I believe there was an Alpha III but it had LED meters.
There were some other amp models scattered in there, but these are the popular ones.
Hope that helps explain.