ES-8 Remote Cutoff Tube Limiter
Features
•Classic feedback compression with the same compression profile as the Fairchild 660 and 670
•Modern class A, solid-state gain make-up stage for wide bandwidth and low distortion
•Soft-knee design with smooth transition from compression to limiting
•Fast attack (0.5ms) and release times ideal for tight program compression or tracking
•Low noise and superior transient response
•Three sidechain operating modes: Fast, Presets and Manual
•Two completely independent channels with stereo linking
•Tubes calibrated for precise stereo balance
•Hard bypass switches for each channel
•Sidechain inserts for frequency-dependent compression and de-essing
•Transformerless balanced output stage capable of delivering +27dBu
•Soft-start warm-up with outputs bypassed until all voltages are stabilized
•Gold-plated relay contacts, I/O connectors and tube sockets
•Fully regulated high voltage (250V), filament and bipolar power supplies
•Custom toroidal power transformer with shield for minimum hum
•Polypropylene capacitors and metal film resistors
Introduction
Thank you for purchasing the Pendulum ES-8, a modern two channel tube limiter designed to have
the compression characteristics of a vintage unit, but with a higher level of sonic accuracy. Rather
than trying to recreate the past, we decided to taken an entirely different approach. The ES-8 uses a
remote-cutoff gain control tube with the same compression characteristics as the vintage Fairchild
limiters to provide the classic feedback response unique to the characteristics of this tube. Subsequent
amplification is accomplished with a Class A, balanced transformerless solid-state line amp, rather
than the push-pull transformer output stage used on vintage variable-mu units. The result is a limiter
that possesses the 'dynamic signature' of a classic tube compressor, but with a more accurate, less
colored signal path.
The soft-knee design used in the ES-8 offers effortless dynamic control with a smooth transition
from compression to limiting. In addition, both channels can be operated independently, or linked
with the flip of a switch. When linked, the threshold and attack/release parameters are controlled
entirely by channel 1, assuring precise stereo balance over the entire range of gain reduction.
For maximum versatility, the ES-8 incorporates a solid-state sidechain to provide a wide range of
control with three modes of processing: In the FAST mode, the limiter works extremely fast (0.5ms
attack time), and is remarkably free of the 'pumping' artifacts normally encountered with slow
variable-mu compressors. It's the ideal choice for invisible dynamics processing, either for tracking or
tight program compression.
The PRESET mode consists of six classic attack/release time settings (identical to the Fairchild
670), that are optimized for program compression, including two settings with program-dependent
release times.
The MANUAL mode offers total control over the attack and release times, which is particularly
useful for creative compression effects or for processing bass guitar.
Most important, the hard bypass switches on the front panel conveniently allow a quick
determination of exactly what the ES-8 is, or in most cases, isn't doing to your signal.
Unpacking
The unit was carefully packed at the factory to protect against damage in transit. Nevertheless, be
sure to inspect the unit and shipping carton for any signs of damage that may have occurred during
shipment. If there is any damage, notify us immediately for further instructions. It’s also a good idea
to save the carton and packing materials should you ever need to return the unit for repair. The
