The D SERIES-SFRC8L Audio Selector from RDL is used with the SourceFlex Distributed Audio System. This is a SourceFlex module for wall mounting in a room that provides source selection from up to 8 audio sources with numeric display showing the selected source. There are 2 line-level audio outputs on the rear of the unit, balanced and unbalanced, to feed an external power amplifier. The balanced line output level is +4 dBu nominal. The unbalanced output is -10 dBV.

The D SERIES-SFRC8L is designed to be mounted in a wall box. Its wiring is connected through a rear-panel detachable terminal block. The SFRC8L is appropriate for office distributed sound systems with background music and a paging source.

Single-room listening station with in-wall controls

Source selection pushbutton

Selection from up to 8 audio sources

Line-level audio output

Mounts in wall using the US single-gang electrical box or RDL WB-1U

Compatible with other RDL wall plates and controls (sold separately)

Suitable for office distributed sound systems with music and paging

Related Questions and Answers

Q: 1. Do you have a method of delaying the audio switch for 500 MS?

A: I'm afraid not within the unit itself. Normal On: 15 us (Fast) 70 ms (Soft) is as long as it gets.

Q: 2. Does this come with a microphone?

A: No, this system does not include a microphone. The included bodypack transmitter is compatible for use with separately available Audio-Technica CW mics such as the AT829cW Cardioid Condenser Lavalier (B&H # AUAT829CW), MT830CW Omnidirectional Lavalier (B&H # AUMT830CW), PRO-92CW Omnidirectional Headworn Mic (B&H # AUPRO92CW), or PRO 8HEcW Hypercardioid Headworn Dynamic Mic (B&H # AUPRO8HECW).

Q: 3. What is the part number for the power connector?

A: RDL PS-24V3A 24VDC Switching Power Supply with North American Cord is the correct power supply. B&H # RDPS24V3A

Q: 4. If I am using this to switch between 2 turntables, will it work using the phono-level signal from each or should the signals be preamplified before going into the switch?

A: The Rolls SS412 Passive Analog Stereo Audio Source Selector does not offer amplification for phono level turntable signals. In this case the turntables' signal would need to be amplified to line level before connecting to the SS412.

Q: 5. This item appears when you choose "speaker switch" in the B&H search box. It appears to be a source switch. Can it be used as a speaker switch?

A: This item is actually a source selector for a singular pair of speakers or a single output. If you were looking to switch between speakers you may be interested in a monitor selector like this one BH #PRMSV2.

Q: 6. Is this safe to connect to from multiple pre-amped sources? Or will the circuit between preamps close when it switches and fry one of them?

A: This is safe to use when you need to connect and switch from multiple line level audio sources to one audio line level input on a playback device only. Please note this is not intended for use with any audio sources carrying power intended for speakers.

Q: 7. Can I blend the audio in one of the Input selections (let's day Position 2) from two Audio sources connected to two separate Inputs (let's say Position 1 and 3) without producing a ground loop or unwanted noise/hum?

A: No, only one input source can be selected at a time. It is not possible to combine multiple input sources. Perhaps the Rolls MX28 Mini-Mix VI Compact Stereo Line Mixer (B&H # ROMX28) may be more along the line of what you need. Please contact us by phone or through live chat on the website if you would like further assistance to find the best option for your application.

Q: 8. Can my input come from my One soundcard and my powered speaker monitors Yahama HS8 and PRESONUS 4.5 work?

A: The Pyle Pro PSS4 4 High Power Speaker Selector is designed for use with passive speakers and would not be recommended to use with powered speakers such as Yamaha HS8 or Presonus Eris 4.5. A product that would work well with powered speakers would be BH #MABKPSMC Mackie Big Knob Studio Monitor Controller.

Q: 9. Does this selector require both channels from an amplifier? I have a Public Address amp with one set of mono outputs (4 ohm minimum).

A: No, the right and left channels are independent. You can use them like two mono channels.

Q: 10. Can the input form the amplifier be over 100 watt, e.g. 300 watts? So as long as the output is 100 watts on each channel?

A: As long as you are only sending the Pyle Pro PSS4 4 High Power Speaker Selector a maximum of 100W to the left and right amplifier inputs, it will be fine. Make sure you can set a maximum output wattage on your amplifier's outputs beforehand.