Yamaha DSP-A1 User Manual

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English
1C. MAIN SP
Choices: LARGE/SMALL
Preset position: LARGE
LARGE: Select this position if your main speakers have a high
ability for bass reproduction.
In this position, full range signals present at the main
channels are output from the main speakers.
SMALL: Select this position if your main speakers do not have
a high ability for bass reproduction. However, if your
system does not include a subwoofer, do not select
this position.
In this position, low bass signals (below 90 Hz) at the
main channels are output from the SUBWOOFER
terminals (if the SW or BOTH position is selected on
“1D. LFE/BASS OUT”).
1D. LFE/BASS OUT
Choices: SW/MAIN/BOTH
Preset position: SW
MAIN: Select this position if your system does not include a
subwoofer.
In this position, full range signals present at the main
channels, signals from the LFE channel and other
low bass signals that are selected on “1A. CENTER
SP” to “1C. MAIN SP” to be distributed from other
channels are output from the main speakers.
SW/BOTH:
Select either the SW or BOTH position if your system
includes a subwoofer.
In either position, signals at LFE channel and other
low bass signals that are selected on “1A. CENTER
SP” to “1C. MAIN SP” to be distributed from other
channels are output from the SUBWOOFER
terminals.
When the LARGE position is selected on “1C. MAIN
SP”, in the SW position, no signal is distributed from
the main channels to the SUBWOOFER terminals,
however in the BOTH position, low bass signals from
the main channels are output to both of the main
speakers and the SUBWOOFER terminals.
1E. FRONT MIX
Choices: OFF-7ch/ON-5ch
Preset position: OFF-7ch
OFF-7ch:Select this position if your speaker system includes a
pair of front effect speakers.
ON-5ch: Select this position if your speaker system does not
include a pair of front effect speakers.
Sound signals at the left and right front effect
channels are distributed to the left and right main
channels respectively, and output from the main
speakers.
1F. MAIN LEVEL
Choices: Normal/–10dB
Preset position: Normal
Normal: Normally, select this position.
–10dB: Select this position if the volume levels to the center,
rear and/or front effect speakers are lower than the
level to the main speakers even though they are
adjusted to maximum.
The volume level to the main speakers are
decreased by 10 dB, so you can adjust the speaker
output level balance properly.

Yamaha DSP-A1 Specifications

General

Surround Sound	Dolby Digital, DTS, Dolby Pro Logic
Frequency Response	10 Hz-100 kHz +0, -3 dB
Total Harmonic Distortion	0.015%
Signal to Noise Ratio	96 dB
Output	Pre-out
Speaker Load Impedance	4-16 ohms
Digital Inputs	Coaxial, Optical
Video Inputs	Composite, S-Video
Dimensions	171 mm
Input Sensitivity	200mV (line)