harman/kardon CT-1

Commentary

A balanced input / output interface based on the sound quality concept of the Citation series.

It converts the normal (unbalanced) output into a balanced output, solves the problem of sound quality degradation caused by ground grounding, and supports the balanced input normally installed in high-end equipment.
Between normal input and normal output, the transformer performs as a matching transformer and eliminates unwanted noise that adversely affects sound quality.

An absolute phase switch for changing the phase has also been made.

The transformer uses a high-quality permalloy core and a five part balanced winding. In addition, it is double-shielded with a permalloy shield case to prevent induction from the outside. It is firmly fixed inside a large shield case with special filler.
In addition, we have taken care of the terminals by using ノイトリック's gold-plated canon type for the pin terminals and balance terminals, which are both gold-plated and Teflon insulated.

Model Rating

Type	Super Balance Interface
Input	Unbalanced / High / Low
Input-output	Unbalanced / Balanced (Switching with both input and output switches)
Frequency characteristic	10 Hz ~ 100 kHz + 0. 5-3 dB
Separation	70 dB or More (10 kHz, 1k Ω termination)
External dimensions	Width 151x Height 88x Depth 226 mm
Weight	2.3kg
Remarks	The Canon terminal is 1st ground, 2nd cold, and 3rd hot.