YBA Signature 4 chassis

The YBA Signature 4 chassis  amplifier is built on four separate chassis.   It includes the famous YBA line filter (one per channel) and, in addition, is equipped with eight 330 VA transformers. It also benefits from a power-on sequencer in order to prevent any overload of the power line.

The YBA Signature 4 chassis amplifier attains the height of musical neutrality and transparency.

It is now recognized as the reference for amplification.

Power output : 100 W / 8 Ohms (230 V line power), 200 W / 4 Ohms (230 V line power), 2 kW / 0,7 Ohms (peak) 

 Signal to noise ratio (unweighted) :  > 100 dB 

 Frequency response :  from 5 Hz to 80 kHz at -3dB 

 Input sensitivity :  1,1 V at P max 

 Distortion :  < 0,09% from 20 Hz to 20 kHz 

 Consumption :  quiescent : 100 VA at P max (both channels driven) : up to 2, 600 VA depending upon the model 

 Damping factor :  > 800 at 100 Hz, adjustable 

 Input impedance :  27 k Ohms

Q: Q:
In the front foot, does the foot have "alpha" or "delta" sign on it?
How is its cosmetic condition? Any sort of DIY upgrade performed on the
machines?

A: The symbol is Alpha. Excellent cosmetic condition. No DYI upgrades performed.

Q: In
the front foot, does the foot have "alpha" or "delta" sign on it? How
is its cosmetic condition? Any sort of DIY upgrade performed on the
machines?

A: The symbol is Alpha. Excellent cosmetic condition. No DYI upgrades performed.

Q: How is its condition? Any upgrade had been performed? Any repair history? What is your price?

A: These
amps have had only one owner. They are in excellent condition. They
have no repair history as none has been required. They are the latest
version. I have a minimum reserve price of $9000.

Q: Where are you located? Why is it 117v instead of 110v?

A: I’m
in Chicago. These units were designed for the US market. Most
electronics for this market will have specified voltages of between 110V
and 120V.