AQVOX - Cinch RCA jack /XLR-plug Adaptor for PHONO2CI - makes TRUE balanced CURRENT amplification easy possible.
! Important: only the balanced input has
the unique-sonically advantages of a TRUE BALANCED - CURRENT AMPLIFICATION!
98% of all tested MC-cartridges do sound better at the balanced input, but there
are some MC´s sounding better at the RCA voltage amplifier input.
Therefore it should always be tested, at which input a MC cartridge sounds better.(most
MM-cartridges have to high impedance for the XLR-input)
For connecting tonearms (with MC-cartridges) with RCA-plugs (Cinch) at the XLR balanced input of the PHONO2CI phonoamp. Herewith a REAL balanced operation is possible. Only the balanced input is a current amplifier. This rarely found balanced-current-input is really a rare circuit. Most of all tested MC´s do sound better at the current input. Only in balanced mode the CURRENT-Amplifier input for MC´s is active! AQVOX strongly recommends to try also the RCA input, because somel tested MC-cartridges do sound better at the RCA input, which is a voltage-amplifier.
TRUE balanced with just two conductors?
Normally balanced connections have 3 conductors: positive, negative and ground.
But in the case of eg. cartriges or microphones, which are balanced sources
with just 2 conductors - positive and negative. The technical term is floating
balanced or balanced without ground. Yes this is TRUE balanced! The positive
signal is connected to one dedicated amplifier stage and the negative signal
is inverted and also connected to one dedicated amplifier stage = differential
amplifier!
Also with balanced XLR input, the unbalanced RCA output is active!
High-quality strong thermoplastic-XLR-plugs, precision machined bronce contacts.
Gold plated less metal RCA(Cinch)-jacks with OFC-Copper wire, soldered with
highsilver-solder.
Be carefully, that at the cartridge or the Phono2Ci or other equipment can
be damaged if not used with care. You are using the adaptors at your own risk!
If the adaptors or phonocables get in touch with the metal-case of the Phono2Ci
or any other devices or ground or the turntable etc.. . Be aware, if using these
adaptors the outer metalpart (screen) of the RCA adaptor which is normally ground/mass
is now HOT. The screen has become a signal-carrier! So any contacts to earth/ground
is a short-cut! So always unplug all your components before connecting disconnecting
anything!
If you have questions regarding this, please consult your local dealer
or contact us!
2. ATTENTION! most REGA-Tonearms may need for best balanced operation a simple modification, a separation of the tonearmground from the left channel signal-ground. (for instructions click here)
3. ATTENTION! Adaptors offered for example from Neutrik (NA2MPMF) and similar
models are NOT compatible, because wired like IEC 268-12: Pin 2 = Signal; Pin
3und Pin1= Ground/screen
AQVOX XLR/RCA:
XLR-Pin 2 = Signal+ = connected to RCA center pin
XLR Pin 3 = Signal- = connected to RCA ground (collar)
XLR Pin 1 = screen is NOT connected to RCA
This adaptor is necessary for testing the full sonic performance! In case the
MC-system sounds better at the XLR (balanced current amplifier) input, the optimum
is to change the phonocable to a balanced one (either two hot wires in one screen,
or two hot wires and no screen) . For this please consult your dealer or us.
No matter, if the balanced XLR input or the unbalanced RCA input is used.
Both outputs are usable at the same time!