Jensen Transformers Iso-Max Din-2Li 2-Channel Line-Input Isolator

Jensen Transformers Iso-max Din-2li 2-channel Line-input Isolator

Product Code: eq45915
Availability: In Stock

$899.97 $1,394.95

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Description
Reviews (18)

Ideal for use in performance venues, broadcast houses, and broad-scale AV installations, the Jensen Transformers Iso-Max DIN-2LI 2-Channel Line-Input Isolatoris a passive, 2-channel line-input isolator, which prevents and eliminates hum and buzz by isolating the input of the connected device. Designed to work with professional, balanced audio systems, it is also capable of attenuating electromagnetic interference (EMI) and radio frequency interference (RFI) problems. The unit is plug-and-play with no power required, and snaps into place onto a standard 35mm DIN rail, for easy installation in a NEMA electrical enclosure.

The DIN-2LI features a pair of high-performance Jensen transformers with internal Faraday shields, which eliminate ground loops and reduce common-mode noise by as much as 124 dB. The unit delivers a flat frequency-response from 5 Hz to 40 kHz, and can withstand signals in excess of +19 dB at 20 Hz, without discernible distortion.

Connections to and from the Jensen Transformers Iso-Max DIN-2LI are made via removable screw-down wire terminals. The module comes equipped with a gray, molded assembly made from UL94-VO flame-retardant Noryl.

Isolates Input of Connected Device For 35mm DIN Rail in NEMA Enclosure Two Jensen High-Performance Transformers Eliminates Hum & Buzz from Ground Loops Reduces Electromagnetic Interferences Frequency Response of 5 Hz to 40 kHz Low Distortion Down to 20 Hz Passive Design Requires No Power Made from UL94-VO Flame-Retardant Noryl

Parameters
Type	Passive line-input isolator
Channels	2
Format	For standard 35 mm DIN rail in National Electrical Manufacturers Association (NEMA) electrical enclosure
Connectors	Removable, screw-down wire terminals
Frequency Response	5 Hz to 40 kHz
Input Impedance	Zi, 1 kHz, +4 dBu, test circuit 1 Minimum: 13.0 kOhms Typical: 14.1 kOhms Maximum: 15.0 kOhms
Voltage Gain	1 kHz, +4 dBu, test circuit 1 Minimum: -3.2 dB Typical: -3.0 dB Maximum: -2.8 dB
Magnitude Response	20 Hz, +4 dBu, test circuit 1, ref 1 kHz, Rs = 600 Ohms Minimum: -0.15 dB Typical: -0.03 dB Maximum: ±0.0 dB 20 kHz, +4 dBu, test circuit 1, ref 1 kHz, Rs = 600 Ohms Minimum: -0.35 dB Typical: -0.20 dB Maximum: ±0.0 dB
Deviation from Linear Phase	20 Hz to 20 kHz, +4 dBu, test circuit 1, Rs = 600 Ohms Typical: +1.4 / -0° Maximum: ±2.0°
Distortion (THD)	1 kHz, +4 dBu, test circuit 1, Rs = 600 Ohms Typical: <0.001% 20 Hz, +4 dBu, test circuit 1, Rs = 600 Ohms Typical: 0.04% Maximum: 0.10%
Maximum Input Level	At 20 Hz, 1% THD, test circuit 1, Rs = 600 Ohms Minimum: +17 dBu Typical: +19 dBu
Common Mode Rejection Ratio	60 Hz, test circuit 2 Typical: 124 dB 3 kHz, test circuit 2 Minimum: 85 dB Typical: 95 dB 60 Hz, test circuit 3 Typical: 95 dB 3 kHz, test circuit 3 Typical: 85 dB (600 Ohms balanced source)
Output Impedance	Zo, 1 kHz, test circuit 1, Rs = 600 Ohms Typical: 3.2 kOhms
Optimal Cable Length	Output Typical: 3.3' / 1 m Maximum: 9.8' / 3 m
Turn Ratio	Minimum: 0.999:1 Typical: 1.000:1 Maximum: 1.001:1
Temperature Range	32 to 158°F / 0 to 70°C (Operation or storage)
Voltage Difference	Minimum: 250 V RMS (Primary or secondary to shield and case, 60 Hz, 1 minute test duration)
Construction	Gray, molded assembly made from UL94-VO flame-retardant Noryl
Dimensions	3.85 x 2.06 x 2.30" / 97.80 x 52.30 x 58.40 mm
Packaging Info
Package Weight	0.6 lb
Box Dimensions (LxWxH)	4.8 x 3.3 x 3.3"

Passive, 2-channel line-input isolator for professional, balanced audio systems
Isolates the input of the connected device
Connects between the source and the input destination to eliminate hum and buzz caused by ground loops
Reduces electromagnetic interference (EMI) and radio frequency interference (RFI) problems
Snaps into place onto a standard 35 mm DIN rail for easy installation in a NEMA electrical enclosure
Two Jensen high-performance transformers with internal Faraday shields improve rejection of high-frequency buzz by a factor of 100 to 1000 (40 dB to 60 dB) over traditional transformers
Ruler-flat frequency-response from 5 Hz to 40 kHz
Handles signals in excess of +19 dB at 20 Hz, without discernible distortion
Rejects noise by as much as 124 dB
Connections to and from the module are made via removable screw-down wire terminals
Made from gray, molded assembly made from UL94-VO flame retardant Noryl
Plug-and-play, easy to use, no power required

Related Questions and Answers

Q: 1. is this used to get rid of hum?

A: Yes, this device typically will remove the 60Hz AC hum generated by connecting two devices that are not sharing the same AC ground.

Q: 2. Are the euroblocks unbalanced compatible?

A: No they are not: Connector Euroblock (Balanced) 3.81 mm Pitch

Q: 3. Can this be used to feed a line-level output from a soundboard into a mic-level input camera socket where the source signal is 30 or 40db more than what the camera needs? I am not sure which side is male vs. female. Thanks.

A: Yes. I use it to take line level from a soundboard into a mic level audio recorder. It works perfectly.

Q: 4. Does this Wall Mount work with Condenser Mics that require phantom power?

A: Yes it will pass phantom power if your mixer has Phantom power or you purchase the phantom power injector module from RDL

Q: 5. wattage per channel?

A: The RM82 does not have any amplification. It outputs a line level signal.

Q: 6. Hello, on the rear panel of the device is mentioned that power supply is 120V AC 50/60Hz but in Europe supply is 220V AC 60Hz.Can we connect this device on European power supply? Usually product that comes from USA have both 110/220V AC power supply.Thank you

A: this device has not have a switch to 220V, so i do not recomend that you connect it to a 220V.

Q: 7. What is the warranty? I have one a few years old and it's starting to have buzz issues.

A: Rolls rack mixers are covered by a limited one year warranty for parts and labor from the Manufacturer.

Q: 8. Need to pad a piano mic before the mixer for better low volume control - does it matter where I put the attenuator in the line or does it need to be right after the piano mic???

A: Best results will be closest to the start of the signal chain(microphone).

Q: 9. Is the output signal truly FULLY balanced, i.e. is there both a (+) and out-of-phase (-) signal?

A: Yes, the outputs are fully balanced

Q: 10. Will this item be good for my mackie dlz creator for the background like noise hum as well i have shure sm7db and pig hog cable?

A: The Radial Engineering IceCube IC-1 Balanced Line Isolator and Hum Eliminator will not eliminate background noise, but it can remove or reduce humming sounds caused by grounding issues.

Joseph	27/09/2024
[5 Hz to 40 kHz] Solved the problem of the DirecTV receiver causing ground loop (because of the ground at the home entry). Using a Denon AVR 6500H as the preamp for Parasound A21+, placed the Jensen Transformers Iso-Max CI-2RR - 2-Channel Ground Isolator about a couple of feet from the Parasound RCA input and 3 feet from the Denon (all bluejeans LC-1 capbles). Dead silence now during quiet periods. The good part about placing the isolation break at the input to the power amplifier is that the Jensen should still be effective should there be other ground problems now or later, beyond the Directv receiver. 5

Minh	27/09/2024
[2] Great device, bought to fix a ground loop hum between my catv coax coming into the house and my other audio-video equipment. So now no more hum and the video reception quality did not degrade. 5

Paul	14/09/2024
[0.6 lb] What can you say? No more hummmmmm. 5

Hiren	13/09/2024
[0.6 lb] I have Denon & Atmos speaker setup, cablebox from Comcast & a subwoofer. The cheap $20 isolator available online didn't do a good job since comcast signal was degraded per their tech. He said that it introduced some noise feed back to their other customers. Not sure how much of that is true but he did say that if I were to get an isolator get something over 1000mhz and this one fit the spec. I installed it and so far all is great. No issues. 5

John	11/09/2024
[0.6 lb] This is the second VRD-1FF I've bought. The first one lasted 9 years, but this spring our house was hit by lightning. The old VRD-1FF started adding 6dB signal loss, so I figured the lightning hurt it. Just like the original, the new VRD-1FF has eliminated the ground loop hum that was on our incoming CATV Cable 5

Michael	11/08/2024
[2] I have an Onkyo NR5008 serving as a preamp to a Parasound 2250 stereo amp driving my Left and Right channel Tekton Design Double Impact speakers (high sensitivity 4 ohm speakers). Due to the potential current draws, these are on separate 20 amp circuits. The Jensen CI-2RR removed all the hum without changing the tonal balance or shaving off the high frequencies based on REW measurements. Bought this based on the success I had with the Iso-Max Sub-2RR I use to connect the Onkyo with my 1,000 watt subwoofer amplifier (plugged into a third 20 amp circuit). Both Iso-Max units eliminated the hum without sonically damaging the signal which was not true for the less expensive isolating transformers I tried first. 5

Charles	28/07/2024
[0.6 lb] This seems like a pricey little widget, but it worked perfectly to eliminate a heavy hum in my new subwoofer setup (Dayton rackmount subwoofer amp, Dayton Reference 10 subwoofer) in my home theater. BTW this was at the suggestion of the documentation for the subwoofer driver. 5

Tom	15/07/2024
[0.6 lb] The transformer worked perfectly. The low frequency hum from the TV was gone once it was installed. Make sure to follow the installation guidelines on the website - especially trimming the center conductor on the CATV coax cables. NOTE: There were no instructions included with the shipment even though the label on the transformer box seemed to imply there would be. 5

Hiren	08/07/2024
[0.6 lb] I have Denon & Atmos speaker setup, cablebox from Comcast & a subwoofer. The cheap $20 isolator available online didn't do a good job since comcast signal was degraded per their tech. He said that it introduced some noise feed back to their other customers. Not sure how much of that is true but he did say that if I were to get an isolator get something over 1000mhz and this one fit the spec. I installed it and so far all is great. No issues with performance but the box label instructed to read instruction which were not in the box. So I went to their website and read it. 5