Video Chat with a B&H Expert & Get Pro Audio Advice Live!

Serpent Audio SB4001 500 Series Stereo Bus Compressor

BH #SESB4001 • MFR #SB4001
Serpent Audio
Serpent Audio SB4001 500 Series Stereo Bus Compressor
Special Order
Expected availability: 2-4 weeks
$109/mo. suggested payments for 12 Mos.
with the credit card.§ 

Important Notice

  • This item is noncancelable and nonreturnable.
Protect your Gear
Add a protection plan from $79.99

True Know-How

Ask Our Experts


Serpent Audio SB4001 Overview

The SB4001 500 Series Stereo Bus Compressor from Serpent Audio is a quad VCA based compressor, and can be used for either stereo or mono applications. It can be used for gain reduction and is suitable for a number of signal types and musical applications. This stereo compressor has six Ratios, ten Attack Times, High Pass/Boost/Slope Sidechain Filters, Wet/Dry Blend Control, External (Key) Input, Classic Stepped Release Settings, Classic and Alternate Auto Release, Variable Release Control, and "Grind" Mode (a valve style harmonic drive adding vintage color).

Electronically balanced
True bypass (relay controlled)
Protection from 48V phantom power
Powder-coated front panel for extra durability
All handmade through-hole main audio path
Wet/Dry blend (for parallel processing)
External/Key input accepts balanced or unbalanced inputs
Premium Grayhill rotary switches
Sealed pots
All machined aluminum knobs
UPC: 100156790012

Serpent Audio SB4001 Specs

Number of Channels1
Input22 kHz input impedance
Electronically balanced (accepts balanced or unbalanced signals)
Output< 100 Ohms output impedance
Transformer-like floating output
Electronically balanced (accepts balanced or unbalanced signals)
External Input22 kHz input impedance
electronically balanced (TRS) (accepts balanced or unbalanced signals)
Sidechain Filter60 Hz, 90 Hz, 120 Hz, Boost Mode, Slope Mode
Maximum Input Level+21 dBu
Compression Threshold+8 dBu
Compression Ratio1.5:1, 2:1, 4:1, 6:1, 8:1, 10:1
Attack Time0.1 ms, 0.3 ms, 1 ms, 3 ms, 5 ms, 10 ms, 15 ms, 20 ms, 25 ms, 30 ms, 40 ms, 50 ms
Release TimeStepped: 0.3 sec, 0.6 sec, 1.2 sec
Classic Auto Release (A1)
Classic Auto Release (A2)
Variable Release Time (Engaged by Last Position on Stepped Switch): 0.1 to 1.2 sec (±10%)
Maximum Output Level+21 dBu
Output Load600 Ohms
GainGain Reduction Element: Quad VCA
THD+N(20 Hz to 20 kHz), typically 0.008%
Make-up Gain24 dB (±1 dBu) [-6 to +18]
Frequency Response(20 Hz to 20 kHz) ±0.11 dB
Dynamic Range>119 dB
Noise-100 dBu
DimensionsNot specified by the manufacturer
Packaging Info
Package Weight1.7 lb
Box Dimensions (LxWxH)8.6 x 5.9 x 4.1"

Serpent Audio SB4001 Reviews

See any errors on this page? Let us know