SCHOEPS IRT 250

Product overview

The SCHOEPS IRT 250 is a mounting bar for ambience recording in 5.1 surround with the "IRT cross" technique, holding four cardioid or supercardioid microphones at a capsule distance of 250 mm.

The IRT cross arranges four microphones so that each neighbouring pair forms an ORTF-like arrangement with a recording angle of approximately 90°, which results in a uniform 360° image. Thanks to the distances between the microphones, the diffuse-field correlation is low, giving very good spatial imaging. The four signals are routed discretely in 5.1 surround to L, R, LS and RS.

The bar takes four CCM microphones or CMC 1 L amplifiers with MK 4 or MK 41 capsules, and an elastic suspension is included.

Key features

• Mounting bar for the IRT cross, ambience recording in 5.1 surround
• For 4 cardioids or supercardioids: CCM / CMC 1 L + MK 4 or MK 41
• Resulting capsule distance 250 mm
• Pairs form ORTF-like arrangements with about 90° recording angle
• Uniform 360° image with very good spatial imaging
• Elastic suspension included

Made for

• Ambience and atmosphere recording in 5.1 surround
• Discrete four-channel surround recording to L, R, LS, RS

In the box

• IRT 250 mounting bar
• Elastic suspension
• Microphones available separately (four CCM 4 L / CCM 41 L, or CMC 1 L with MK 4 / MK 41)

SCHOEPS IRT 250: frequently asked questions

What is the IRT cross?

A microphone setup for ambience recording: four microphones in a square, each neighbouring pair forming an ORTF-like arrangement of about 90° recording angle, for a uniform 360° image.

Which microphones fit the IRT 250?

Four cardioids or supercardioids: CCM 4 or CCM 41 compact microphones, or CMC 1 L amplifiers with MK 4 or MK 41 capsules.

Is there a complete set?

Yes. The IRT 250 is part of the SCHOEPS IRT-Cross Set, a plug-and-play set.

Where can I buy the SCHOEPS IRT 250 in India?

The SCHOEPS IRT 250 is available from Shivansh Electronics, Kolkata, West Bengal, India, with delivery across India.

Workflow 1: 5.1 surround ambience

Recordists capturing atmospheres and room sound in surround.

Connections

Setup

1. Mount the four microphones on the IRT 250 and the bar on a stand.
2. Point one pair to the front and one pair to the rear.
3. Route the four signals discretely to L, R, LS and RS.

Tip: Fit B 5 D foam shields for protection against wind.

Workflow 2: Colette version of the IRT cross

Users with Colette capsules and CMC 1 L amplifiers.

Connections

Setup

1. Screw the capsules onto the CMC 1 L amplifiers.
2. Mount all four on the bar with cardioids or supercardioids throughout.
3. Record four discrete channels.

Tip: The IRT-Cross Set is the plug-and-play version of this setup.