Yes, that's exactly what it means. Incidentally, according to ASR's measurements of the AVR-X4700H, the pre-out at 1.1 V happens to perform the best, with THD+N at -101 dB.
Specs look very good, but the HCC 130 Amps/channel blablabla are just marketing hypes with no practical meaning at all. Pretty sure by "Amps" they meant amperes, 130 amperes/channel? Give me break, they should have specify the time duration and that could be 1 micro second or less lol!!
But jokes aside the specs are good, definitely much better than the Denon's internal amplifiers assuming such 25 years old amplifiers are in top shape.
Thanks for the 1.1V confirmation! The Citations seem to be in good shape, and now I know I can use them with receivers like the 4400H without worrying about the internal amps clipping/distortion.
Back in the day, I think the peak amps per channel jargon was used by HK Citation/Signature and Parasound amps (which I used to own).
I did find this old post on AVS from Steve Mantz of Zed audio was the one who designed this amp. Here is what he had to say. Mostly engineering talk, the only two things I get are: 1) 2.2K Toroid, and 2) bridge mode in 2 ohms.
Steve Mantz, now with Zed Audio, was instrumental in the Citation 5.1 and 7.1 amp creation:
"We did design and build the Citation 7.1 and the smaller 5.1. We built a lot of these for Harman International. The amplifiers are flat from DC to 270KHz where the response is about 1dB down. Harman wanted this silly specification, why I do not know because we are not bats and cannot hear that high. The original specification was that they wanted the amplifier to go out to 600KHz, but the first prototypes were NOT happy out there and so we 'compromised' at just under 300KHz.
Each channel uses 10 Toshiba 20MHz output devices with a theoretical dissipation of 1,500 watts. The circuitry is fully complementary from input to output and it has some very unique features. Each channel has 6 power supplies which are separate from the other channels. The only common item between channels is the power transformer, which is a 2.2Kw toroid. This 2.2Kw rating is at 25 deg C and it can put out upwards of 3Kw at higher temperatures.
The input complementary differential pairs are driven by temperature compensated constant current sources, which ensure almost zero drift of the DC conditions with each channel. These are also cascode connected for maximum bandwidth. The main gain stage is also cascoded for increased bandwidth and is also Darlington configured for high current gain.
The output stage is a triple Darlington with ultra fast turn off delay. The main power emitter resistors are non inductive types. No coils are used in the speaker circuit and the amplifier is stable into reactive loads with a phase angle of over 45 degrees. It has the usual plethora of protection circuits which by the way are not in the audio path. The amplifier can be turned on with a remote trigger or by the rocker switch on the rear. It can be changed to run from 100v to 240 AC 50/60Hz.
I have the last two production amplifiers at home, one of which I use in my own system for the subs. I run it in bridge mode into a 2 ohm load, and I get out 1Kw per pair of bridged channels. I did modify the protection circuit to allow me to run each channel into 1 ohm!
I have used the amplifier for 8 years now and it has run flawlessly." - Steve Mantz
