Atlantic Technology SA-350 Mono, SA-350, SA-700 Remote Control Functions, Direct Access Connector

14 Remote Control Functions

InWall Subwoofer System

When using the latest discrete digital electronics we recommend setting the subwoofer amplifier’s BASS LEVEL control to its THX/ REF position and using the Processor/Receiver’s built-in subwoofer level control. Should you have difficulty achieving the correct subwoofer volume this way or should your Processor/Receiver not have a subwoofer level adjustment built in,you can use the subwoofer amplifier’s main BASS LEVEL control to make this adjustment.

Level Setting Without an SPL Meter

If you decide not to use an SPL meter try to set all the speaker levels the same using the Test Tones. Of course, this will be much more difficult without the meter, especially for the subwoofer.

Setting the Subwoofer Level Without an SPL Meter or Test Tones

Start your listening with the subwoofer LOW PASS control set at the correct crossover point (or in the THX/EXT position if you’re using

aTHX Certified processor or unit with a built-in crossover). Set the PHASE control to 0°,and the front panel BASS LEVEL control to the

						THX/REF position
PHASE		LOW PASS		BASS LEVEL		as shown to the left.
90	180	80				Play some music that
0		270
						you know has good
		50	150	MIN	MAX	bass content, and
		THX / EXT		THX / REF
						turn the Processor/

Receiver’s level control up until you just start to hear the subwoofer working. Now, from your normal listening position, determine whether the subwoofer is playing loudly enough and filling in the bass frequencies of the music evenly. If adjustment is necessary, change the processor’s setting or use the front panel BASS LEVEL control if your processor lacks a subwoofer level adjustment.

How Much is Enough?

Sometimes people prefer more bass impact for movies than sounds natural when reproducing music. Since you have the 4 EQ settings plus the LEVEL TRIM, it’s now a snap to adjust the subwoofer to compensate for any variations in the source material. Remember however,the most common error people make when setting up their system is to play the subwoofer (and surrounds) too loudly. Should you desire the most accurate overall reproduction, a well balanced sound from deepest bass to highest treble is the best way to get it. Have fun. Experiment. Enjoy.

Remote Control Functions

There are 4 custom EQ settings that have been programmed into your subwoofer amplifier (see graphs on back cover). These have been chosen to enhance your enjoyment of both movies and music. These EQ settings are fairly subtle,as we wanted to make them truly useful with a wide selection of software. They are accessed by using the four EQ buttons on your Remote Control.

		EQ1 This EQ was designed to en-
EQ1	EQ2 EQ3	hance music.It actually reduces the
EQ4		midbass of the subwoofer by a
	REF	small but noticeable amount. You
	TRIM	will find that with most music this
		tends to make the bass sound
		tighter and more defined. It should

make individual bass notes easier to hear as well. EQ1 can also be used to remove some“boominess”from the bass when playing par- ticularly bass heavy material.

EQ2 This EQ was programmed to enhance the impact and“punch” of special effects. It consists of an increase in the bass response cen- tered around 60Hz.Depending upon the source material,EQ2 could also be used to fill in a bass shy music recording.

EQ3 Another choice primarily intended to enhance movie and video soundtracks. This one uses a more subtle increase of bass output centered at 80HZ with the addition of a very low frequency filter. This gives you the option of punching up the mid-bass while at the same time reducing the possibility of overdriving the woofers with extreme low frequencies.

EQ4 We call EQ4 “After Dark.” Our ears are less sensitive to the fre- quency extremes (deep bass and very high sounds) at lower vol- ume levels. In order to compensate during those times when you must play the system at lower volume levels, EQ4 has been designed to raise the overall bass output of the sub slightly. The result will be a fuller and richer sounding bass at low volumes levels. EQ4 is de- signed to enhance both music and movies. It can also help if you have a low bass problem at the listening position.

REF This resets the EQ to flat response and the volume trim to 0dB.

		LEVEL TRIM and MUTE The ▼
	TRIM
		and ▲ buttons let you change the
		total output level of your subwoofer
MUTE		to compensate for soundtrack
		variations and your personal pref-
		erences.Each push of the button re-

sults in a 1dB change above or below the preset reference level set with the BASS LEVEL control. The LEVEL TRIM readout on the amplifier indicates the level of adjustment numerically.

Pressing the MUTE button turns off the volume of the subwoofer. Pressing it again returns the volume to its previous setting.

Direct Access Connector

Located on the rear panel, this port and the corresponding male plug (included and installed in the port) is for use with a hard wired remote control system using electronic or mechanical switching. Each contact function is labeled.To access the control functions use a normally open connection. Momentary closure will activate each function. The LEVEL TRIM function will respond in 1dB steps to a single contact closure while constant closure will result in continu- ous steps to the maximum of + or – 10dB. The REF EQ and REF volume reset functions each have their own set of contacts.