Sonifex CM-HPR1 Headphone Volume Control, Passive, RJ45 Input - Jack Output

Name: Sonifex CM-HPR1 Headphone Volume Control, Passive, RJ45 Input - Jack Output
Brand: Sonifex
SKU: CM-HPR1
Price: 362.00 USD
Availability: InStock

Vendor: Sonifex

Sonifex CM-HPR1 Headphone Volume Control, Passive, RJ45 Input - Jack Output This product generates a headphone output with level control and enables the connecting of a stereo balanced line input via an RJ45...

$362.00

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Description

Sonifex CM-HPR1 Headphone Volume Control, Passive, RJ45 Input - Jack Output

This product generates a headphone output with level control and enables the connecting of a stereo balanced line input via an RJ45 with StudioHubTM connector. Any headphones with an impedance greater than 150Ω can be used with it because it is transformer balanced. A set of headphones set to 150 volts appears at the input to be 600 volts, which is a reasonable load for most high-quality line output stages. This is because the transformer ratio of 2:1 ensures that any headphone load presented at the output is reflected through to the input at a 1:4 ratio.

Connectors & Controls

Headphone Output

The stereo headphone output uses a stereo 6.35mm jack socket with the following connections:

Pin Type	Connection
Tip:	Left
Ring:	Right
Screen:	Ground

The headphone level will be at half the level of the incoming signal with the volume control at 100%.

Volume Level Control

The volume level control sets the output level of the stereo headphone socket and runs logarithmically from zero to the maximum output level.

Analogue Inputs CM-HPR1

The stereo analogue input is on a female RJ45 connector with the following standard StudioHub+™pin assignments:

Pin No	Connection
1	Left Phase
2	Left Non-Phase
3	Right Phase
4	Ground
5	N/C
6	Right Non-Phase
7	N/C
8	N/C

Specifications

Audio Specification
Input/Output Level Ratio:	2:1
Input/Output Impedance Ratio:	4:1
Minimum Headphone Impedance:	150Ω
Max Input Level:	+28dBu
Max Output Level:	+22dBu
Frequency Response:	20Hz to 20kHz, +0/-0.5dB
Noise:	<-115dBu A-wgtd
Distortion Ref +8dBu (Output):	<0.01%
Common Mode Rejection:	>80dB

Connections
Main Stereo Input:	1 x RJ45 female StudioHub+™ pinout
Output:	¼” (6.35mm) A/B gauge 3-pole stereo jack sockets

Equipment Type
CM-HPR1:	Headphone volume control, RJ45 input

Physical Specification
Dimensions (Raw):	7.7cm (W) x 8.3cm (D) x 4.2cm (H) 3.0” (W) x 3.3” (D) x 1.7” (H)
Dimensions (Boxed):	12.7cm (W) x 22.9cm (D) x 7.6cm (H) 5” (W) x 9” (D) x 3” (H)
Weight:	Nett: 0.22kg Gross: 0.33kg Nett: 0.49lbs Gross: 0.73lbs