SPL Stereo Q - Model 2048 - 5-Band Stereo Equalizer - Cord and Manual Included Product Description (adapted from product manual): The Stereo Q is a parametric 5-band equalizer which excels particularly in two ways:It is the first stereo equalizer in its classThe serial-filter design based on the legendary QURE equalizer filter guarantees the high tonal qualities for which SPL products have become renowned for.The continuously increasing number of stereo equipment such as stress keyboards, samplers, or guitar amplifiers together with the broad spectrum of sundry stereo effect gear reinforces the need for utilization of stereo equalizers. The processing of stereo tracks in the consoles subgroups or master tracks if facilitated and improved by using a stereo EQ. All control functions for both channels can be adjusted with one control - a large time saver. It is extremely important that both channels are assured of being adjusted equally. Differing adjustments could cause unstable correlations of the stereo program, the correction of which is very complicated. The close adjustment tolerances of the Stereo Q reliably avoid this problem, which makes it an extremely suitable unit for inclusion in a 5.1 surround studio where the need for coherent twin matching of both channels is paramount. The filter circuits of the stereo Q are serially constructed which prevents mutual influencing of the filters. All components used are of high and selected quality. Additionally, the design of a clearly arranged front panel with comprehensive legible scaling was given high priority; large handy buttons with detented potentiometers guarantee a fast and assured adjustment. Product Features (adapated from product manual):Three fully parametric bands in accordance with the mutually effective proportional Q principle (Boost/Cut +/- 15 dB, Q 0.5 to 5; LOW band 10-250 Hz, MID band: 140 Hz - 3.5 kHz, HIGH band: 940 Hz to 24 kHzSub-bass EQ (Cut/Boost +/- 14 dB up to 200 Hz) with coil/capacitor filter network that produces a penetrating and lucid deep tone spectrum.Air-EQ: the selected coil/capacitor-filter network provides a silky and airy presence - especially in digital recording.The 3D-Enhancer intensifies the spatial impression of the stereo signal without affecting the low frequency tonal components.Optional provision of input and output transformers from Lundahl: balancing through transformer stages. The galvanic separation ensures high operational safety. Tonal advantages are offered by the transformer coil, which minimizes odd harmonic distortion and provides a silk top end.Disturbances which could have an effect over the ground-runs are minimized by the separation of the audio-ground from that of the remaining apparatus. The leads substantially to a higher and cleaner tonal quality.Power Supply: The toroidal transformer forms the basis for a clean power supply throughout the circuitry. Extra Information:Product manual is includedProduct has been tested and is working**PRODUCT IS BEING SOLD AS IS + SELLER DOES NOT ACCEPT RETURNS!**