Anthony-gallo Reference 3 S.A. Amp Instrukcja Użytkownika Pobierz pdf (Strona 6)

What if I don’t have any pre-outs?

This could be the case with an integrated amplifier. What you need now is a second pair of speaker cables

or a biwire set. You connect to the SA via the high-level speaker inputs from your main amp’s speaker terminals,

by ‘stacking’ two pairs of cables from the same speaker terminals (unless your integrated amplifier has two pairs

of terminals per channel). One set of speaker cables will continue to go to your main speakers, the other one will

connect to the SA. Think of this as an unusual biwire connection where the second pair of cables doesn’t connect

to a speaker but the SA instead.

What else?

That’s it. Now you’re all set. Remember to re-check all cable connections to avoid reversed polarity which

would result in bass cancellation. If your main amplifier inverts polarity, be sure to set both phase controls on the

SA to 180. If you purchased the SA at the same time as the Ref³ speakers, set the initial EQ boost to +6dB to

significantly accelerate break-in. As the speakers break in, you will most likely hear that the +6dB EQ setting is far

too high and results in a ponderous bass-heavy presentation. Don’t use it for serious listening but only to make the

woofers work harder while they’re breaking in. Before you play your first track with the SA connected, set the

EQ/boost and two gain controls to 0, then open up the gain controls a little bit, listen, open them a little bit more,

listen again until you get a perfectly seamless and “invisible” level of bass reinforcement. You shouldn’t know that

the SA is in the circuit until you turn it off. Then the lower bass disappears and the speakers sound leaner and

lighter. If the lowest bass below 30Hz seems a bit light or weak, experiment with adding some EQ boost, moving

up from 0 in 1dB steps, listening in-between from your usual seat until you have rock-solid but even extension

down to the very lowest notes on your recordings.

1b/ Anthony Gallo Acoustics Nucleus Reference³ speakers + Reference³ SA xover/amplifier,

multi-channel mode:

Connecting the SA from a preamp/processor or multi-channel receiver

In the setup menu of your pre-pro or surround sound receiver, select “large” for the main speakers. This

sends a full-range ‘uncut’ signal to the Ref³s’ main inputs. Connect the SA’s RCA inputs to the pre/pro or

receiver’s 0.1 subwoofer pre-out. Because all 0.1 LF outputs are mono, you will have to use the included Y-

adaptor on the SA’s end of the interconnect. This will send the LF mono signal to both our Ref³ main speakers for

bass augmentation. Most processors adopt the THX low-pass filter value of 80Hz for the subwoofer output.

This allows you to experiment with two different settings.

1. Set the SA to full-range operation. This removes its own filter from the signal path and puts the processor

in full control.

2. Set the SA to low-pass and experiment with crossover settings below 80Hz. While this puts two crossovers

in series (processor + SA), it allows you to lower the filter frequency below the THX value.

Let your ears decide whether you like option 1 or 2 better. Most movie sound effects don’t occur in the low

but mid bass. The 80Hz setting of option 1 will thus give you an additional boost in the 40-80Hz range where most

the movie mayhem sound effects occur. Option 2 will likely be preferable for music listening because it results in a

more linear and honest frequency response. The remaining SA volume adjustments are identical to the stereo setup

already discussed.

2/ Gallo MPSB/DVs + Reference³ SA xover/amplifier:

Our own MPSB/DV passive outboard subwoofers use the same 10” woofers and enclosures as to what is

built into the Ref³ speakers. The only difference is how you connect the outboard subwoofers to the SA. You need

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Anthony-gallo Reference 3 S.A. Amp Instrukcja Użytkownika Strona 6