AVR 507 (serv.man7) - Harman Kardon Audio User Guide / Operation Manual. Page 28

28 OPERATION

DOLBY 3 STEREO

Uses the information contained in a surround-encoded or two-channel stereo program to 

No surround channels

create center-channel information. In addition, the information that is normally sent to the 
rear-channel surround speakers is carefully mixed in with the front-left and front-right 
channels for increased realism. Use this mode when you have a center-channel speaker 
but no surround speakers.

THEATER

The THEATER mode creates a sound field that resembles the acoustic feeling of a 

Delay time not adjustable

standard live performance theater, with stereo and even pure mono sources.

HALL 1

The two Hall modes create sound fields that resemble a small (HALL1) or

Delay time not adjustable

HALL 2

medium sized (HALL 2) concert hall, with stereo and even pure mono sources.

VMAx Near

When only the two front-channel loudspeakers are used, Harman’s patented VMAx mode 

No surround channels

VMAx Far

delivers a three-dimensional sound space with the illusion of “phantom speakers” at the 
center and surround positions. The VMAx N, or “Near Field” mode should be selected when
your listening position is less than 1,5 m from the speakers. The VMAx F, or “Far Field” mode
may be selected when your listening position is greater than 1,5 m from the speakers.
The VMAx modes are also available using the Headphones Output 4. When headphones
are being used, the Far Field mode will push the sound field away from your ears,
reducing the “inside the head” sensation often experienced when using headphones.

5-Channel Stereo

This mode takes advantage of multiple speakers to place a stereo signal at both the front and

No delay available in

7-Channel Stereo

back of a room. Depending on whether the AVR has been configured for either 5.1 or 6.1/7.1 

these modes

operation, one of these modes, but not both, is available at any time. Ideal for playing music in 
situations such as a party, this mode places the same signal at the front-left and surround-left,
and at the front-right and surround-right speakers. The center channel is fed a summed mono 
mix of the in-phase material of the left and right channels.

Surround Off (Stereo)

These modes turn off all surround processing and present the pure left- and right-channel 

No surround channels 

Surround Off (Bypass)  presentation of two-channel stereo programs. The Surround Off (Bypass) mode may only be 
DSP Surround Off 

used with analog source inputs, as it preserves the analog format of the audio signal for its 
entire path of travel through the receiver to the speaker and subwoofer outputs, bypassing 
all digital processing. Digital bass management is not available in Surround Off mode. The 
DSP Surround Off mode can be used with either an analog or digital input, as the signal 
undergoes digital bass management to optimize the distribution of the low frequencies 
between the main speakers and a subwoofer.