Boss SE-50 Stereo Effects Processor

The Boss SE-50 is a half-rack stereo multi-effects unit with 24-bit internal processing, 16-bit converters, 28 preset algorithms, space for 100 user patches, and deep MIDI and pedal control for studio or stage.

Boss SE-50 Stereo Effects Processor Details

The Boss SE-50 Stereo Effects Processor is a compact multi-effects unit that brought dedicated-unit sound quality to a half-rack format. The Boss SE-50’s architecture uses a high-performance LSI with 24-bit internal processing and 16-bit A-D and D-A conversion, delivering wide dynamic range with sampling at either 48 kHz or 32 kHz depending on the algorithm.

Out of the box with the Boss SE-50 you get 28 preset algorithms and space for 100 user patches, so combinations can be stored and recalled quickly from the backlit two-line LCD. There are 19 core effects covering high-quality ambience and reverbs, delays including tap and multi-tap, chorus, flanger, phaser, rotary speaker simulation, enhancer, compressor and overdrive, plus vocoder, tremolo and panning.

Unique composite algorithms in the Boss SE-50 show off the processor’s routing flexibility, such as Multi Pitch Shifter which can stack up to four pitch voices within a four-octave span for up to five-part harmony including the original, and a Rhodes algorithm that uses EQ, panning and modulation to recreate a dynamic stereo electric-piano effect. Editing is straightforward with dedicated number, value and parameter buttons, input level control for left and right, and front-panel overload and effect indicators.

Performance control is extensive with the Boss SE-50 via MIDI Program Change and Control Change, with support for external pedals and foot controllers to step through Number Shift sequences or manipulate parameters like Rotary speed or filter sweep. Stereo inputs and outputs make the Boss SE-50 equally at home on an instrument pedalboard, keyboard rig or an auxiliary effects loop in the studio.

Features

Processing: High-performance LSI with 24-bit internal signal processing
Conversion: 16-bit A/D and D/A
Sampling rates: 48 kHz or 32 kHz depending on algorithm
Built-in effects: 19 types including high-quality reverb, delay, chorus, flanger, phaser, rotary, enhancer, compressor, overdrive, tremolo, panning and vocoder
Preset algorithms: 28 combinations in serial or parallel
User patches: Store up to 100 editable patches
Display: 16-character by 2-line backlit LCD
Performance control: Number Shift sequencing with optional FS-5U footswitch
MIDI control: Program Change and Control Change for patch recall and real-time parameter control
Pedal options: Supports EV-5 or EV-10 expression pedals and FC-100MKII foot controller
Multi Pitch Shifter: Up to four additional voices across a four-octave range for five-part harmony
Rhodes algorithm: EQ, modulation and panning to create a dynamic stereo electric-piano effect
I/O: Stereo inputs and outputs with input level controls and overload indicators
Form factor: Compact half-rack unit suitable for rigs or studio aux loops

Specifications

Released in: 1990

Made in: Japan

Memory: 100 user patches; 28 preset algorithms
Conversion: 16-bit A/D and D/A with 24-bit internal processing
Sampling rate: 48 kHz or 32 kHz (algorithm dependent)
Rated input level: −20 dBm or +4 dBm
Input impedance: 1 MΩ
Rated output level: −20 dBm or +4 dBm
Output load impedance: > 50 kΩ
Frequency response: 20 Hz to 20 kHz (+1, −3 dB) at 48 kHz; 20 Hz to 15 kHz (+1, −3 dB) at 32 kHz
Input channels: 2
Input gain: −20 dB to +12 dB
Output channels: 2
Display: 16-digit x 2-line backlit LCD
Controls: Input Level L/R
Buttons: Number Up/Down, Value Up/Down, Parameter Up/Down, Effect, Write, Exit, Utility
Switches: Power, Level
Indicators: Overload L/R, Effect, Utility
Jacks: Input L (mono)/R, Output L (mono)/R, Number Shift, MIDI In/Out, AC Adaptor In, Effect Remote
Power: 12 V AC (BRB Series adaptor)
Dimensions: 218 mm x 238 mm x 44 mm
Weight: 1.6 kg

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Effects Presets

NUMBER	NAME	Algo.	NUMBER	NAME	Algo.	NUMBER	NAME	Algo.
No.1	Hall 1	1	No.44	Bright Gate	6	No.87	Metal	21
No.2	Hall 2	2	No.45	Reverse Gate	6	No.88	Clean	21
No.3	Room	3	No.46	Panning Gate	6	No.89	Lead 1	21
No.4	Plate	4	No.47	St. REV. 1	7	No.90	Modulate GT.	21
No.5	Ambience	5	No.48	St. REV. 2	7	No.91	Fuzz	21
No.6	Gate Reverb	6	No.49	St. REV. 3	7	No.92	Jazz	21
No.7	St. Reverb	7	No.50	St. REV. 4	7	No.93	Pitch Guitar	21
No.8	Multi Delay	8	No.51	Pan Delay	8	No.94	Metal Flange	21
No.9	Tap Delay	9	No.52	CRES. Delay	8	No.95	Lead 2	21
No.10	Stereo Delay	10	No.53	Pingpong DL	8	No.96	Ballade VC.	22
No.11	Space Chorus	11	No.54	Overdub Echo	9	No.97	Short Vocal	22
No.12	Pitch Shifter	12	No.55	Analog Delay	9	No.98	Slap Bass	22
No.13	St. P. Shifter	13	No.56	Short Delay	9	No.99	Mellow Bass	22
No.14	St. Flanger	14	No.57	Cross Delay	10	No.100	AC.Guitar	22
No.15	St. Phaser	15	No.58	Long Delay	10	No.101	Hall 1	1
No.16	Vocoder	16	No.59	Space CHO 1	11	No.102	Hall 2	2
No.17	Rotary	17	No.60	Space CHO 2	11	No.103	Room	3
No.18	Keyboard 1	18	No.61	Space CHO 3	11	No.104	Plate	4
No.19	Keyboard 2	19	No.62	Space CHO 4	11	No.105	Ambience	5
No.20	Rhodes	20	No.63	Detune	12	No.106	Gate Reverb	6
No.21	Guitar Multi	21	No.64	Octave Down	12	No.107	St. Reverb	7
No.22	Vocal Multi	22	No.65	Octave Up	12	No.108	Multi Delay	8
No.23	St. Enhancer	23	No.66	Diminish	12	No.109	Tap Delay	9
No.24	2ch Mixer	24	No.67	Octave Echo	12	No.110	Stereo Delay	10
No.25	Rev1 + Rev2	25	No.68	St. P. Shift 1	13	No.111	Space Chorus	11
No.26	Gate Rev + Rev	26	No.69	St. P. Shift 2	13	No.112	Pitch Shifter	12
No.27	Chorus + Rev	27	No.70	St. Flanger 1	14	No.113	St. P. Shifter	13
No.28	Delay + Reverb	28	No.71	St. Flanger 2	14	No.114	St. Flanger	14
No.29	Mid Hall	1	No.72	Gate Flanger	14	No.115	St. Phaser	15
No.30	Large Hall	1	No.73	St. Phaser 1	15	No.116	Vocoder	16
No.31	Dark Hall	1	No.74	St. Phaser 2	15	No.117	Rotary	17
No.32	Bright Hall	2	No.75	St. Phaser 3	15	No.118	Keyboard 1	18
No.33	Cathedral	2	No.76	Rotary Fast	17	No.119	Keyboard 2	19
No.34	Live House	3	No.77	Rotary Slow	17	No.120	Rhodes	20
No.35	Dead Room	3	No.78	Rotary Drive	17	No.121	Guitar Multi	21
No.36	Brass Reverb	3	No.79	Synth. Solo	18	No.122	Vocal Multi	22
No.37	Vocal Reverb	4	No.80	Super Phaser	19	No.123	St. Enhancer	23
No.38	Drum Reverb	4	No.81	Step Phaser	19	No.124	2ch Mixer	24
No.39	Ambience 1	5	No.82	Rhodes 1	20	No.125	Rev1 + Rev2	25
No.40	Ambience 2	5	No.83	Rhodes 2	20	No.126	Gate Rev + Rev	26
No.41	Ambience 3	5	No.84	Vib	20	No.127	Chorus + Rev	27
No.42	Normal Gate	6	No.85	Tube Stack	21	No.128	Delay + Reverb	28
No.43	Dark Gate	6	No.86	Rhythm	21

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