I'm receiving the Coda no.8 soon. I have a pair of RELs I wanted to pair with it using high level. I was told the Coda no.8 is a true balanced design. The manual isn't very clear to me. I see the words differential and balnced are mentioned in the manual but I don't know what it's referring 2. Trying to see if the black speaker terminal is ground or if it's live. If it's ground...I hear that referred to as "common ground". If it's not...then it's live though it's 180° out of phase(right?)..
If I get this wrong and hook up the Rels ground wire to the black speaker terminal...I could destroy the amplifiers. So I asked the manufacturer at Coda and he just responded with "The black is actually a system ground."
Is this the same as saying "common ground"?
Manual:
"The Coda Continuum No. 8 amplifier is designed with the same level of thoroughness usually
reserved for the finest amplifier gain stages. Balanced interconnections are provided to take
advantage of the greater noise rejection they provide. Differential voltage gain throughout
provides exceptional rejection of external noise and contributes to the inherent DC stability of
the circuit. This allows direct coupling at the Balanced Inputs without servo circuitry. The unit
also uses output followers operating without feedback.
The front end is designed to provide a slew rate of 50 V/us without entering Class B operation
as is common in many other designs. This combined with excellent high frequency design
insures linear operation at high speed. The supplies take a very direct approach to high
performance. A top quality 3000VA toroidal transformer with independent and about
80,000 uF of total capacitance with very low ESR and inductance are used.
The current stage is capable of producing currents in excess of 100 peak Amperes with a
degree of linearity and speed which is not matched by other designs when producing only a
fraction of this current. This is achieved by the implementation of several distinct circuit
features.
Each channel uses 20 individual output transistors with a combined power capability of 3600
Watts and 75 Amps with a bandwidth of 10 Mhz.
The bias section is designed to produce a precision transition with no abrupt changes in
distortion or output impedance."
If I get this wrong and hook up the Rels ground wire to the black speaker terminal...I could destroy the amplifiers. So I asked the manufacturer at Coda and he just responded with "The black is actually a system ground."
Is this the same as saying "common ground"?
Manual:
"The Coda Continuum No. 8 amplifier is designed with the same level of thoroughness usually
reserved for the finest amplifier gain stages. Balanced interconnections are provided to take
advantage of the greater noise rejection they provide. Differential voltage gain throughout
provides exceptional rejection of external noise and contributes to the inherent DC stability of
the circuit. This allows direct coupling at the Balanced Inputs without servo circuitry. The unit
also uses output followers operating without feedback.
The front end is designed to provide a slew rate of 50 V/us without entering Class B operation
as is common in many other designs. This combined with excellent high frequency design
insures linear operation at high speed. The supplies take a very direct approach to high
performance. A top quality 3000VA toroidal transformer with independent and about
80,000 uF of total capacitance with very low ESR and inductance are used.
The current stage is capable of producing currents in excess of 100 peak Amperes with a
degree of linearity and speed which is not matched by other designs when producing only a
fraction of this current. This is achieved by the implementation of several distinct circuit
features.
Each channel uses 20 individual output transistors with a combined power capability of 3600
Watts and 75 Amps with a bandwidth of 10 Mhz.
The bias section is designed to produce a precision transition with no abrupt changes in
distortion or output impedance."
