The ST-SSR1 was designed for absolute silent switching of audio signals. It supports two balanced line-level inputs and one balanced output. Each can be used unbalanced as well. The ST-SSR1 is perfect for switching between two input signals or as a silent On/Off switch for a single channel. Performance is in keeping with the technical standards for which RDL® has become known. The user can program the module for either fast or soft switching.
The SELECT input feeds the OUTPUT when the TRIG terminal is grounded, otherwise the OUTPUT is fed by the NORMAL input.
The control current required at the TRIG terminal is so minimal (< 0.5 mA) that the ST-SSR1 can be controlled from nearly any source from switches to logic circuits.
The ST-SSR1 may be controlled using the RDL RC2-ST, RT2 or RUC-4 remote controls.
Switch Line Level Sources
Select Between Two Balanced Lines
Silent Audio Switching
Switching Without Hard Relay Contacts
Fast Switching for Audio Muting
Selection by Open-Collector Logic
Operating Temperature (Maximum):
131 F
Operating Temperature (Minimum):
32 F
Switching Time Fast: Time required for NORMAL input to turn off:
10 us
Switching Time Soft ::
5 ms
Switching Time Fast: Time required for NORMAL input to turn on:
15 us
Switching Time Soft ::
70 ms
Switching Time Fast :Time required for SELECT input to turn off:
15 us
Switching Time Soft::
10 ms
Switching Time Fast: Time required for SELECT input to turn on:
20 us
Switching Time Soft::
35 ms
Control Signal:
TRIG terminal must be externally pulled to ground
Control Current:
0.5 mA
THD+N:
< 0.05 %
Frequency Response:
15 to 20000 Hz (+/- 0.5 dB, bridging load) 30 Hz to 20 kHz (+/- 0.5 dB, 600 ohm load)
We may request cookies to be set on your device. We use cookies to let us know when you visit our websites, how you interact with us, to enrich your user experience, and to customize your relationship with our website.
Click on the different category headings to find out more. You can also change some of your preferences. Note that blocking some types of cookies may impact your experience on our websites and the services we are able to offer.
Essential Website Cookies
These cookies are strictly necessary to provide you with services available through our website and to use some of its features.
Because these cookies are strictly necessary to deliver the website, refusing them will have impact how our site functions. You always can block or delete cookies by changing your browser settings and force blocking all cookies on this website. But this will always prompt you to accept/refuse cookies when revisiting our site.
We fully respect if you want to refuse cookies but to avoid asking you again and again kindly allow us to store a cookie for that. You are free to opt out any time or opt in for other cookies to get a better experience. If you refuse cookies we will remove all set cookies in our domain.
We provide you with a list of stored cookies on your computer in our domain so you can check what we stored. Due to security reasons we are not able to show or modify cookies from other domains. You can check these in your browser security settings.
Other external services
We also use different external services like Google Webfonts, Google Maps, and external Video providers. Since these providers may collect personal data like your IP address we allow you to block them here. Please be aware that this might heavily reduce the functionality and appearance of our site. Changes will take effect once you reload the page.
Google Webfont Settings:
Google Map Settings:
Google reCaptcha Settings:
Vimeo and Youtube video embeds:
Privacy Policy
You can read about our cookies and privacy settings in detail on our Privacy Policy Page.