101NPM 101NPM 101NPM 101NPM
LF Mid-Woofer 10"

101NPM

Code: DR-10-007-8R-B2-C0001

Mid-woofer/10inch/Neo/Paper/150W/8ohm

Key Features

  • Ultra lightweight, designed for portable products
  • High efficiency, low harmonic distortion
  • Carbon fiber loaded paper cone

Quick Specs

Impedance

8 Ω

Program Power

300 W

Sensitivity

94.56 dB

Fs

53.00 Hz

Magnet

Neodymium

Voice Coil

50.8 mm

Design Notes

The 101NPM is a high efficiency, (95 dB 1watt / 1 meter) 10-inch mid-woofer with incredibly linear frequency response characteristics, high power handling capability, while generating ultra low harmonic distortion artifacts. The 101NPM uses a lightweight glass fiber loaded cone assembly along with a high excursion triple roll surround. This combination provides a lightweight, yet strong, piston, high efficiency and a peak to peak maximum excursion of 13.6.

Magnetic Circuit
REDCATT engineers have developed a ultra lightweight, inside neodymium slug based magnetic circuit, capable of delivering the highest level of performance, providing a consistent, high integrity magnetic flux gap, ultra low distortion characteristic and high efficiency cooling system. The magnetic structure has integrated two aluminum shorting rings. The magnetic circuit design is optimized to generate the minimum amount of flux modulation, providing exceptional stability.

Specifications

General Specs

Nominal Diameter 10"
Rated Impedance 8 Ohm
Magnet Neodymium
Basket Material Aluminum

Power Handling

AES Power 150 W
Continuous Power 300 W
Peak Power 600 W

Voice Coil

Diameter 50.8 mm
Winding Wire CCAR
Former Glass Fiber
Winding Height 14.5 mm

T/S Parameters

Resonant Frequency (Fs) 53.00 Hz
Re 5.00 \u2126
Qes 0.610
Qms 5.51
Qts 0.550
Vas 49.70 liters
Sd 363.00 cm\u00B2
Mms 32.60 grams
Rms 1.97
Cms 0.2800
Bl 9.60 T\u00B7m
Le 0.530 mH
Sensitivity 94.56 dB

Design Details

Surround Material fabric
Cone/Dome Material Paper CF
Spider Nomex
T-Plate 8 mm
Xmax (peak) 3.25 mm
Xmech 11.25 mm
Overall Diameter 262.00 mm
Bolt Circle Diameter 246.00 mm
Baffle Cutout Dia. 230.00 mm
Mounting Holes 8
Depth (flange to rear) 111.50 mm
Net Weight 1.97 kg

Ordering Codes

Product Code DR-10-007-8R-B2-C0001

Frequency Response & Impedance

Frequency response of 101NPM

2D Drawing

2D drawing of 101NPM

Technical Summary

The 101NPMX8-119 is a 10-inch high-efficiency neodymium mid-woofer designed for lightweight, portable professional loudspeaker systems where minimum weight and maximum sensitivity are critical design parameters. It features a 2-inch CCAR (copper clad aluminum round wire) voice coil on a glass fiber former, a carbon fiber loaded paper cone with a triple roll fabric surround, and an inside neodymium slug motor with 2 aluminum shorting rings for minimized flux modulation and very low harmonic distortion. At 95 dB sensitivity (1W/1m) with an exceptionally light moving mass of 32.6 grams - roughly half that of a typical professional 10-inch woofer - the driver achieves its high output through efficiency rather than excursion, making it ideal for portable systems where amplifier power and cabinet weight must be minimized.

The driver is rated for approximately 150 W AES / 300 W continuous power handling and is intended for use with DSP-controlled amplification. A high-pass filter in the range of 40-51 Hz (24 dB/octave Linkwitz-Riley) is recommended for vented alignments depending on enclosure tuning, with a typical crossover to a high-frequency driver at 1.5-3 kHz. The modest linear excursion (3.25 mm) reflects the efficiency-first design approach - the driver's 95 dB sensitivity delivers high SPL from moderate amplifier power, with the triple roll surround providing controlled mechanical excursion to 13.6 mm peak-to-peak for transient headroom.

This driver is particularly effective in lightweight portable 2-way and multi-way PA tops, stage monitors, column speakers, and installation systems where system weight, high sensitivity, and low distortion are priorities. The inside neodymium slug motor, carbon fiber loaded paper cone, aluminum basket, and triple roll surround provide a lightweight, durable package suited to demanding portable and touring applications where equipment must be carried, rigged, and transported frequently.

Recommended enclosure volumes are simulated results. For best enclosure volumes and tuning, we recommend secondary simulation and careful evaluation. Several rounds of samples and fine-tuning may be required for optimal results.

Enclosure Recommendations

Recommended enclosure alignments (bass reflex):
- 25 liters tuned to 61 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 56 Hz, HP filter 53 Hz
- 25 liters tuned to 56 Hz: balanced response, general-purpose (recommended); -3 dB approx. 52 Hz, HP filter 46 Hz
- 30 liters tuned to 50 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 42 Hz, HP filter 38 Hz

Frequently Asked Questions

  • - Ultra lightweight, designed for portable products
  • - High efficiency, low harmonic distortion
  • - Carbon fiber loaded paper cone
Recommended enclosure alignments (bass reflex):
- 25 liters tuned to 61 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 56 Hz, HP filter 53 Hz
- 25 liters tuned to 56 Hz: balanced response, general-purpose (recommended); -3 dB approx. 52 Hz, HP filter 46 Hz
- 30 liters tuned to 50 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 42 Hz, HP filter 38 Hz
Vented or sealed pa bass-mid; sub assist below 80 hz recommended; weight-critical installs
AES Power: 150 W, Continuous: 300 W, Peak: 600 W. Sensitivity: 94.56 dB (1W/1m).

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