recordinghacks

Search Microphones


Share This Page

Mods for the HRM-15

  • OktavaModOktavaMod
    Michael Joly’s “premium” mod lollipop-style Chinese ribbon mics includes ribbon replacement (1.8 micron, pure aluminum), removal of inner headbasket screens that cause standing wave reflections, and installation of a Lundahl transformer, smoothing the mic’s sound and improving HF response.
  • Open Plan RecordingOpen Plan Recording
    Mark Chierego’s mod features a single layer headbasket, point to point solid core wiring, Australian made ribbons (1.8 micron 99.9% pure aluminium), matched with either a Samar Audio Design toroidal transformers or the Lundahl 2912.

Ningbo Alctron Electronics Co., Ltd. HRM-15

Pricing & Availability

  • MSRP: n/a

Tags

HRM-15 Documentation

BidirectionalNingbo Alctron Electronics Co., Ltd. HRM-15

Bidirectional Ribbon Microphone

The HRM-15 is a lollipop-style ribbon microphone, with a 35x5mm, 2.5-micron aluminum ribbon in a symmetrical position. This yields an even bidirectional response, ideal for the ‘S’ channel in Mid-Side recordings.

Like all Alctron mics, the HRM-15 is rarely seen on the market, although its various “rebadged” equivalents are commonplace. See the Nady RSM-4 and Cascade Fathead.

The mic ships in a padded wooden box with a shockmount.

The Ningbo Alctron Electronics Co., Ltd. HRM-15 is also known as: RM-15, HRM15.

The mic was released in 2005.

Specifications

Frequency Response - BidirectionalClick Graph to Compare!
HRM-15 Bidirectional Frequency Response Chart
Pickup Patterns Pads & Filters
Bidirectional (2 mV/Pa; 30 - 15,000 Hz)
Ribbon Construction Impedance SPL/Noise
35mm x 5mm, 2.5-micron aluminum ribbon 600 Ohms (Low) Max SPL: 148 dB
Self-noise: 18.0 dB(A)
Weight Length Max Diameter Interface(s)
496g (17.50oz) 175mm (6.89'') 37mm (1.46'')
  • 3-pin XLR male (1)
Power Specifications

Did we get anything wrong on this page? Please let us know!