Roland SP-404A Linear Wave Sampler


Designed for live use, the SP-404A Linear Wave Sampler expands the sounds of the Roland AIRA TR-8 Rhythm Performer for a powerful combination of sample and percussive synthesis. The fast, hands-on approach of the acclaimed SP-series performance samplers is a perfect fit for the impressive rhythmic effects and iconic step-sequencer of the Roland AIRA TR-8.

All of the functions and features of the popular SP-404SX are contained in the SP-404A, including its distinctive 16-bit linear sampling, 29 onboard DSP effects, smooth FX switching, and 12 professional performance pads. Plus, a new library of sounds curated by sample-industry leader Loopmasters are provided via the included SD card.

Whether used standalone or controlled by the TR-8, the SP-404A makes for an intuitive and inspiring addition to the AIRA range of performance instruments for DJs, musicians, and producers.



Maximum Polyphony
12 voices
Recordable Data
Samples: 120 (12 samples × 10 banks) (stored on SD card)

Patterns: 120 (12 patterns × 10 banks) (stored on SD card)
Sampling Time (Total time for all samples)
The maximum sampling time (size) for a single sample is approximately 180 minutes in stereo (2 GB). The following shows the approximate total sampling time of the samples that can be stored on one SD card.
Card capacity / Stereo (Mono)

1 GB / Approx. 90 min. (180 min.)

2 GB / Approx. 180 min. (360 min.)

4 GB / Approx. 360 min. (720 min.)

8 GB / Approx. 720 min. (24 hours)

16 GB / Approx. 24 hours (48 hours)

32 GB / Approx.48 hours (96 hours)

Since the SD card included with the SP-404A contains preload data, the available sampling time will be less than the time above.
Data Format
16-bit linear (.wav/.aiff)
Sampling Frequency
44.1 kHz
Pattern Sequencer
Maximum recordable notes: Approx. 16,000 notes

Resolution: 96 ticks per quarter note

Pattern length: 1–99 measures

Recording method: Realtime Loop Recording (with shuffle quantize function)
29 types
12 + Sub pad × 1
Control knob × 3
7 segments, 3 characters (LED)
Onboard Mic
Mono × 1
LINE IN jacks (L, R) (RCA phono type)

LINE OUT jacks (L, R) (RCA phono type)

PHONES jack (Stereo 1/4-inch phone type)

MIC IN jack (1/4-inch phone type)

MIDI IN connector

DC IN jack

SD card slot
Power Supply
AC Adaptor or Alkaline battery (AA, LR6)/Rechargeable Ni-MH battery (AA, HR6) × 6

*Batteries sold separately
Battery Life for Continuous Use
Rechargeable Ni-MH battery: Approximately 5 hours (When using batteries having a capacity of 1,900 mAh.)

Alkaline battery: Approximately 4 hours

*These figures will vary depending on the actual conditions of use.
Current Draw
450 mA
SD Card

AC Adaptor

Owner’s Manual
178 mm

7 inches
257 mm

10-1/8 inches
73 mm

2-7/8 inches
Weight (excluding AC adaptor)
1.2 kg

2 lbs 11 oz