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SPL Neos - 120V Rail 24-Ch. Summing and Monitoring Console

SPL Neos - 120V Rail 24-Ch. Summing and Monitoring Console
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The SPL NEOS 24x2 Summing and Monitoring Console combines the benefits of a 24-channel analog summing mixer, including faders, panorama controls, and a complete and practical monitoring section, all within a compact design powered by the company's 120-volt technology. Conceived with sound engineers, the unit is designed to integrate seamlessly with computer-based workflows while providing the characteristic high-quality sound and handling of analog devices.

The 24 inputs are provided by three 8-channel DB25 connectors, and the slave, insert, and tape returns are available on balanced XLR connectors. For outputs, the unit features balanced XLR connectors for recording out, monitor A, and monitor B, as well as unbalanced XLR connectors for alternative out, insert sends, and metering.

Each input path features a 100mm ALPS fader, pan controls, mono, cut, solo, and "To Monitor Only" push buttons with signal LEDS. The master path also features a 100mm ALPS fader with inserts and bend function for limiting. The monitoring section includes a volume control, a tape mix (DAW return) control, as well as mute, dim, and mono push buttons.

The NEOS utilizes the company's 120-volt technology, which has four times as much operating voltage when compared to most common production mixers. The higher voltage provides over 30 dB of headroom at the input stage, with more than 122 dB of dynamic range, and a 92 dB signal-to-noise ratio over all channels. The unit's handmade discrete op-amps have a signal-to-noise ratio of 116 dB and 34 dB of headroom. The device's over all 150 dB dynamic range covers a frequency response up to 200 kHz, which is beyond the current demands of both PCM digital formats at 24 bit 192 kHz and DSD digital format with 1-bit and 255 fs.

The included rack brackets allow for the console to be mounted at either a 0° or 10° angle. Multiple units can be cascaded together using SPL's 5-pin XLR cables. The 7RU unit is hand made in Germany using pre-production matched components, sealed switching relays, over sized signal traces, a generous PCB layout for greater trace separation, a star-ground scheme, and a linear power supply.



Electronically balanced instrumentation amplifiers


3x 8-Channel DB25 connectors
2x XPR-3F Instrument Returns
2x XLR-3F tape returns
2x XLR-5F SPL connectors for additional NEOS (use SPL cables only)

2x XLR-3M metering level display
2x XLR-3M insert sends
2x XLR-3M alternative outputs
2x XLR-3M monitor A outputs
2x XLR-3M monitor B outputs
2x XLR-3M record output

Input Impedance 10 kOhms balanced / 20 kOhms unbalanced
Output Impedance 75 ohms balanced / 75 ohms unbalanced
Nominal Input Level +4 dBu
Maximum Input Level > +30 dBu (30 dBu = limit of measuring equipment)
Maximum Output Level > 24 dBu
Frequency Range 10 to > 200,000 kHz (at-3 dB)
Phase 1 kHz: 0°
10 kHz: -4.5°
20 kHz: -8.30° 
Common Mode Rejection Ratio > 60 dB
Total Harmonic Distortion Generator output at 24 dBu with inputs terminated at 40 dBu
10 Hz Rec. Out: 0.0011%
Insert Send: 0.0011%
Monitor A/B: 0.0016%
100 Hz Rec. Out: 0.00060%
Insert Send: 0.0009%
Monitor A/B: 0.0016%
1000 Hz Rec. Out: 0.00090%
Insert Send: 0.0013%
Monitor A/B: 0.0020%
5000 Hz Rec. Out: 0.0032%
Insert Send: 0.003%
Monitor A/B: 0.004%
10 kHz Rec. Out: 0.0028%
Insert Send: 0.0018%
Monitor A/B: 0.0027%
22 kHz Rec. Out: 0.00054%
Insert Send: 0.00050%
Monitor A/B: 0.0005%
Signal to Noise Ratio A-weighted
Rec. Out: 92 dBu
Insert Send: 92 dBu
Monitor A/B: 88 dB




Dynamic Range > 122 dB
Power Supply Linear power supply with toroidal transformer
Operational Voltage Range ±60 V (120 V)
Power Consumption (Standby, 230 V/50Hz): 0.420 A, 75W, 97.8VA
Fuse 230 V AC/50 Hz: 315 mA
115 V AC/60 Hz: 630 mA
Voltage Selector Switch 115  V/230  V
Rack Unit Space Front Panel Including Rack Brackets: (19" / 483 mm) Front Panel Without Rack Brackets: (17" / 440 mm)
Dimensions (W x H x D) Power supply: 6.06 x 2.64 x 9.29" (154 x 67 x 236 mm)
Console: 19.02 x 9.25 x 12.99" (483 x 235 x 330 mm)
Weight 31.08 lb (14.10 kg)

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Auckland: 09 414 0477
Wellington: 04 801 9494

Australia: 1300 472 344