What is the difference between single-coil and humbucker mode on this pickup?

Single-coil mode delivers a resonant frequency of 3.50 kHz with 1.00 V string and 3.00 V strum output, yielding an articulate, bright tone. Humbucker mode shifts to 2.50 kHz with higher output (4.00 V string / 8.50 V strum) and a lower noise floor (–109 dBV vs. –107 dBV), producing a thicker, more aggressive character. You switch between them using the included push/pull pot.

Will this pickup fit my bass?

The 35 Extended soapbar measures 3.5 inches (89mm) long and 38.1mm wide, accommodating string widths up to 2.62 inches (66.5mm). If your bass has a standard soapbar pocket in that size range, it will fit; check your bass specs against these dimensions before ordering.

What does the solderless system include?

The complete kit ships with the pickup, a 25K active tone pot (VLPF), a push/pull pot for mode switching, battery bus, stereo output jack, mounting hardware, pickup cable, two connect cables, output cable, and battery cable. No soldering required—just plug cables into connectors and mount.

How long will the battery last?

The pickup runs on a single 9V battery at 160 µA current draw, delivering approximately 1500 hours of battery life (roughly 2–3 months of regular use). The system supports up to 27 V DC if you want extended runtime with a higher-voltage power solution.

Is this pickup good for studio recording or just live performance?

It excels in both contexts. In the studio, the switchable modes and integrated tone control let you dial in bright articulate tones or thick, punchy lows without reaching for a second pickup or external EQ. Live, the high output and low noise floor cut through dense mixes and handle aggressive playing dynamics reliably.

Do I pay sales tax on this order?

We collect sales tax only on orders shipped to California. Orders shipped to any other US state are charged $0 sales tax at checkout when you buy direct from our website. Marketplaces such as eBay, Reverb and Amazon collect sales tax in nearly every state as marketplace facilitators no matter who the seller is, so the same item at the same price costs less bought direct. Free US shipping and 30-day returns are included. Some states ask buyers to self-report use tax on out-of-state purchases.

EMG 35TWX-R Active Bass Pickup in Black

The EMG 35TWX-R is a dual-mode soapbar bass pickup built for players who need switchable single-coil and humbucker character in one compact unit. Its solderless installation system and integrated X Series preamp drop in cleanly, while the mode-switching design lets you dial in the exact sonic footprint your bass rig demands—without swapping hardware between songs or sets.

Tone & Electronics

This pickup responds dramatically differently depending on mode: single-coil operation yields a resonant frequency of 3.50 kHz with output voltages of 1.00 V (string) and 3.00 V (strum), while humbucker mode pushes 2.50 kHz resonance with 4.00 V and 8.50 V output respectively. The ceramic/steel magnet configuration and dual-coil humbucker mode deliver substantially higher output and a tighter noise floor (–109 dBV vs. –107 dBV)—crucial for cutting through dense live mixes or handling hard-hitting playing styles without feedback or muddy artifacts.

Design & Installation

The 35 Extended soapbar housing measures 3.5 inches (89mm) in length and 38.1mm in width, accommodating string widths up to 2.62 inches (66.5mm) without crowding or tonal compromise. The complete solderless system ships with one 25K active tone pot (VLPF), one push/pull pot for mode switching, battery bus, stereo output jack, mounting hardware, and all necessary cables—no soldering iron required, ready for your bass and venue floor in minutes.

Key Features

35 Extended soapbar housing, 3.5 inches (89mm) length, 38.1mm width
Black cover
Switchable single-coil and humbucker modes via push/pull pot
Ceramic/steel magnet with single-coil ceramic magnets and steel pole pieces; dual-coil humbucker configuration
X Series active preamp with integrated VLPF tone control
Single-coil: 3.50 kHz resonant frequency, 1.00 V string / 3.00 V strum output
Humbucker: 2.50 kHz resonant frequency, 4.00 V string / 8.50 V strum output
Output impedance: 2.00 kΩ (both modes)
Output noise: –107 dBV (single-coil) / –109 dBV (humbucker)
9V operation at 160 µA, 1500-hour battery life
Maximum supply voltage: 27 V DC
Accommodates string widths up to 2.62 inches (66.5mm)
Complete solderless install system with 25K active tone pot, push/pull pot, battery bus, stereo output jack, mounting screws, pickup cable, two connect cables, output cable, and battery cable

The combination of switchable voicings, low noise floor, and road-ready solderless connectivity makes the 35TWX-R an essential tool for touring and working bassists who need tonal flexibility on demand.