• MANLEY input transformer with nickel laminations potted in mu-metal case.
• 3 kOhm input Z
• PHASE REVERSE switch for balanced XLR input
• Alternate transformerless 1/4" HI-Z (5K Ohm) input
• BYPASS switch & AUTO-MUTE w/warmup delay
• Silent conductive plastic BOOST & CUT controls
• Sealed gold-contact Greyhill frequency select switches
• Vacuum Tubes: 2 x 12AX7 (gain) and 2 x 12BH7 (or 6414 or 5965) White Follower
• Hi-current drive <50 Ohm LO-Z XLR & 1/4" outputs
• Balanced Transformer-Coupled XLR Outputs via MANLEY 9611
• Flat frequency response from 10Hz-70KHz
• <0.01% THD @ 1kHz
• S/N Ratio: 116 dB
• Adjustable FEEDBACK / GAIN: Unity ±5 dB
• Max. output: +30 dBv
• Power consumption: 25 Watts
• Operating mains voltage: Units are purpose built for original destination country's mains voltage: 100V, 120V, or 220-240VAC as indicated on the serial number badge. Power transformer must be replaced in order to change mains operating voltage. 120VAC units may NOT be rewired to put the primaries of the power transformer in series for 220-240V operation or a large radiated field of hum will develop. If changing locations/voltages, the power transformer must be replaced with the dedicated one for the voltage at which it will operate.
• Mains Voltage Frequency: 50~ 60Hz
• Dimensions: 19" x 3 1/2" x 10" (occupies 2u)
• Unit weight: 12 lbs.
• Shipping weight: 17 lbs.

The Manley Stereo Pultec is essentially two matched Enhanced Pultec EQP-1A channels housed in a single 2U chassis. This dual-channel design is optimized for processing stereo program material, such as a mix bus or stereo sub-groups. While the sonic characteristics and controls of each channel are identical to the mono version, the stereo unit offers the convenience of simultaneous control and a unified power supply, making it an ideal choice for maintaining phase and sonic consistency across the left and right channels of a mix.

The simultaneous Boost and Cut feature is central to the "Pultec magic." When applied to a stereo mix, boosting a low frequency and cutting that same frequency (or an adjacent one) creates a signature resonant shelf. This preserves the low-frequency weight while tightening the mid-bass, adding a powerful, cohesive "punch" to the entire stereo image without muddying the mix. When applied to the high frequencies, it adds "air" and sparkle while controlling harshness. Since the controls are ganged for both channels, the effect is perfectly mirrored across the stereo field.

The passive EQ circuit of the Pultec naturally attenuates the signal, requiring a dedicated amplifier to restore the gain. Manley's all-tube make-up gain amplifier, built around a 12AX7 and a 6414/5965, provides the immense headroom and rich harmonic content that defines the Manley sound. This single-ended, Class-A tube amplifier restores the signal cleanly and musically, imparting a subtle, highly desirable warmth and liquidity that is crucial for the "extra-beefy sound" of the Manley Pultec.

The Stereo Pultec offers two flexible output options per channel for easy interface and sonic variety. It includes a Balanced, Transformer-Coupled XLR Output via the custom MANLEY 9611 transformer, which provides a robust signal with a touch of "big iron" character. It also offers a Direct Capacitor-Coupled Unbalanced Output via a 1/4" jack, which provides a cleaner, more transparent signal path. This versatility allows the engineer to choose the best sonic flavor and interface for the subsequent gear in their chain.

Manley's "Enhanced" Pultec design includes extra selectable frequencies that were not present in the original antique Pultec units. These additional bands expand the unit's versatility for modern production. While the precise additional frequencies are part of the overall updated design, they ensure that the EQ covers crucial low-end resonance points and ultra-high frequency "air" that are often missed by the vintage units.