Hdmi: frequently asked questions, Specifications – ROTEL RSP-1570 User Manual
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RSP-1570 Surround Sound Processor
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RSP-1570 Surround Sound Processor
• Check that the proper video source is selected for each input.
• Check that the group delay (lip-synch) setting is not misadjusted.
Clicking or popping sounds when switching inputs.
• The unit uses relay switching to preserve maximum sound quality. The
mechanical clicking of the relays is normal.
• During switching, it may take a split second for digital signals to
be recognized and properly decoded. Rapid repeated switching 
between inputs or settings can result in clicks or pops from the 
speakers as the unit attempts to lock on to the rapidly changing 
signals. This causes no harm.
Controls do not operate.
• Make sure that fresh batteries are installed in the remote.
• Make sure that the IR sensor on the front panel is not blocked. Aim
the remote at the sensor.
• Make sure the sensor is not receiving strong IR light (sunlight,
halogen lighting, etc.)
• Unplug the unit from the AC outlet, wait 30 seconds, and plug it back
in to reset.
No video from Zones 2, 3 or 4
• Check ZONE SETUP configuration and zone video input setting as
assigned and make sure that a Composite source is connected.
HDMI: Frequently Asked Questions
What is HDMI?
HDMI (High-Definition Multimedia Interface) is an advanced type of 
connection which carries both video and audio in a single cable. It is a 
modern digital replacement for older analog video connection standards 
such as Composite Video, S-Video and Component Video. This Rotel unit 
meets the latest version of HDMI specification, HDMI 1.3.
What is the difference between HDMi and DVI?
An earlier digital connection standard, DVI (Digital Visual Interface) can 
also be used for high-definition video signals by means of a suitable 
adaptor. However, unlike HDMI, the DVI connection does not also carry 
audio signals, nor does it automatically set the picture screen to the 
correct size.
What is the difference between HDMI 1.3 and earlier versions?
If you have a Blu-ray player, note that the HDMI 1.3 connection can 
carry the new Dolby TrueHD and DTS HD Master Audio formats used 
on Blu-ray discs. This processor is able to decode and replay these 7.1 
channel audio formats. 
Also with Blu-ray, but depending on the monitor being used to view the 
picture, you may also be able to enjoy new video enhancements such 
as Deep Color or XY video (also called Broad Color Space). Using the 
HDMI 1.3 connection, the RSP-1570 can pass these signals through from 
the Blu-ray player to a compatible monitor. 
These new audio formats and video features are not available from 
standard DVD discs or players, even when an HDMI connection is used.
Can I connect components which have earlier versions of 
HDMI?
Yes, because HDMI is backwards-compatible. This means that 
components which have earlier versions of HDMI (such as HDMI 1.1 or 
HDMI 1.2) will perform correctly when connected to the HDMI 1.3 inputs 
or outputs of the unit. 
If your DVD player is equipped with HDMI 1.2a, the HDMI connection 
will permit the transmission of 1080p (high definition) video signals.
Which is the best way to rescale the picture?
When using legacy components that require picture rescaling, it is better 
to use the monitor scaler to handle any picture resizing. You should try to 
use only one scaler in the system, so keep your DVD player set to 480p 
or 1080p. A 480p signal will be rescaled by the monitor and a 1080p 
signal will be seen by a monitor with 1080p resolution as a native signal.
Some Blu-ray and HD-DVD discs have been recorded in 1080i. These 
should not be scaled, but are best left to the monitor to interpret into an 
appropriate format for the screen.
Will the HDMI digital output improve the picture quality from 
old analog sources?
Analog picture sources from legacy units begin by being less good than 
digital signals, and while the RSP-1570 will translate them into a digital 
format, the final quality will be constrained by the original source, and 
the choice of connection (Composite, S-Video or Component). The scaler 
cannot correct for low resolution signals and will not improve inherently 
poor picture quality.
Why does the HDMI connection sometimes not give a picture?
Although it is simple to use, the HDMI connection is actually a highly 
complex electrical circuit, and within it is a security system called HDCP 
(High Definition Content Protection). In some circumstances pictures 
may not reproduce, or may not reproduce properly, due to the action 
of DRM (Digital Rights Management) or the ‘handshake’ between 
the two connected units. HDMI cables contain circuits that exchange 
a ‘handshake’ signal several times a second, designed to maintain 
the integrity of the transmission signal and to prevent attempted 
unauthorized copying of copyright material. However, these ‘handshake’ 
signals can be disrupted for several reasons. If problems persist, consult 
your Rotel dealer. 
Specifications
Audio
Total Harmonic Distortion
<0.008%
Intermodulation Distortion (60Hz:7kHz)
<0.008%
Frequency Response
10Hz – 120kHz, ±3dB (analog bypass)
10Hz – 95kHz, ±0.3dB (digital input)
Signal to Noise Ratio (IHF A-weighted)
95dB (analog bypass)
92dB (Dolby Digital, dts) 0dBFs
Input Sensitivity/Impedance
Line Level: 200 mV/100k ohms
Preamp Output Level/Output Impedance
1.0 V / 1k ohms
Contour (LF/HF)
±6dB at 50Hz/15kHz
Decodable Digital Input Signals
Dolby Digital, Dolby Digital EX, DTS, DTS-ES, DTS 96/24, DTS-ES 96/24, 
LPCM (up to 192k). Lossless audio formats (using HDMI Version 1.3): 
Dolby TrueHD and DTS-HD Master Audio 
Video
Input Resolutions
480i/576i, 480p/576p, 720p, 1080i
1080p (HDMI only)
Output Resolutions
480i/576i (Composite, S-Video only), 480p/576p, 720p, 1080i
1080p (HDMI only)
Signal to Noise Ratio
45dB
Input Impedance
75 ohms
Output Impedance
75 ohms
Output Level
1.0 volt
HDMI Inputs/Output
Version 1.3, supporting Deep Color passthrough and Broad Color Space 
passthrough
General
Power Consumption
60 watts
5.5 watts (standby)
Power Requirements (AC)
120 volts, 60Hz (USA version)
230 volts, 50Hz (CE version)
Weight
9.6kg
Dimensions (W x H x D)
431 x 144 x 335mm
Front Panel Height
(feet removed/for rack mount)
3U/132.6mm
When sizing openings in custom cabinets, measure the unit to be installed and/or allow at 
least 1mm clearance on all sides for unit to unit tolerances. All specifications are accurate 
at the time of printing. Rotel reserves the right to make improvements without notice. 
Rotel and the Rotel HiFi logo are registered trademarks of The Rotel Co, Ltd., Tokyo, Japan.
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