We recommend buying the set.
We've been making great pickups for over 45 years. The Quarter Pound™ P-Bass pickup sounds great alone, but sometimes one pickup is not enough. If you don't know where to start, we recommend getting the set - it captures the full voicing of what we tried to create, as well as ensures it won't be out of phase with other pickups in your guitar.
Want to learn more about out-of-phase pickups?
Check out this article.
1/2
1/2
1/1
$99.00
available
Large ¼” diameter alnico 5 rod magnets and a high output coil wind (SPB-3) deliver the most tone and attitude you could ever want in a high output P-Bass pickup.
More Details
TECH SPECS
DCR – Short for DC Resistance, is measured in Ohms and is the total resistance of the copper wire wound around a coil form. The length of the coil form, the number of turns and the gauge of wire all affect the DCR reading. DCR is often used as a gauge of output because as the turns increase, so does the output, though magnet type and the coil geometry also influence output.
Magnet – We use several different magnet formulations: Alnico 2, Alnico 3, Alnico 4, Alnico 5, Alnico 6, Alnico 8 and Ceramic 5/8. In the case of pickups, the most significant characteristic is the gauss strength, which is a measure of the density of the magnetic field. Of the magnets we use, Alnico 3 has the lowest gauss strength. From there in order of ascending strength you have A2, A4, A5, A6, Ceramic and A8. As the gauss strength goes up, so does the output. The magnets at the lower end of the scale tend to produce a softer attack and a degree of “bloom” to the envelope of the note.Ceramic magnets should be considered as an individual case because they do not contain any nickel or iron. This has the effect of decreasing the inductance of the pickup and significantly raising the resonant frequency. It is for this reason that many consider ceramic magnets to have a brittle sound, not their gauss strength. Looking at this from another point of view, ceramic magnets can be said to produce increased clarity, better note definition and faster response to picking.
Output – The overall output of a passive pickup is influenced by several design factors: number of turns of wire on the coil(s), strength of the magnet, coil geometry and magnetic circuit geometry.The output of an active pickup is influenced by the same factors but is predominantly determined by the design of the onboard preamp.
Product Details
- Sound Samples
- DETAILS
- EQ
Please use the amp to the right to select which position, tone and mix you'd like to hear sample of.
Description
There’s a reason this is our most popular Bass pickup: massive tone. The QP has a fat, punchy tone that pushes P-bass pickups past previous models with design and frequency improvements. The quarter-inch diameter pole pieces expand the magnetic field and extend the frequency ranges for a fat, full, punchy sound with tremendous mid-range presence and maximum output.
Though often used for heavy rock tones, this pickup gives amazing tonal versatility, making it a favorite across the board in live and studio settings. This pickup is a drop-in replacement for any American Standard Precision Bass and is available in 4 and 5-string configurations.
Hand built in Santa Barbara, CA, the massive Quarter Pound high output P-Bass pickups use ¼” diameter alnico 5 rod magnets, Forbon flatwork, and are vacuum wax potted for squeal free performance. Comes with black covers.
Wiring & Resources
Dimensions specs: 4-String P-Bass
For wiring diagrams, click here.
The E.Q. chart gives you a general idea as to the bass, mids and treble of each pickup position
Single Pickup
B
M
T
VIDEOS
SPB-3 Quarter Pound for P-Bass
'; jQuery('#VideoModal .modal-content').html(html); jQuery('#VideoModal').modal('show'); jQuery('#VideoModal').addClass('show');}jQuery(document).ready(function($){jQuery('#VideoModal').on('hidden.bs.modal', function (){jQuery('#VideoModal .modal-content').html('');});});
Hand Built in California. Period Correct. Every Time.
Our team of master builders have been with us for an average of 21 years—they take pride in crafting our products to create the most amazing sound possible.
Take Your Tone For A Test Drive
If you’re not 100% pleased with the sound of your Seymour Duncan pickups, you can exchange them for up to 21 days after purchase. This offer applies to any pickups bought from an authorized Seymour Duncan dealer in the USA.
Customers Also Viewed
- Hot Single Coil P-BassP-Bass PickupHotter true single coil P Bass pickup (SCPB-2) for Tele Bass adds beef and warmth…$89.00 Brand_assets_master available
VIEW/BUY
- Quarter Pound™ PJHigh Output Precision Jazz Bass PickupsMassive attitude from the Jazz bass pickup in the bridge together with fat full punchy…$188.00 Brand_assets_master available
VIEW/BUY
- 3 Coil Music ManMusic Man Bass Pickup3-coil alnico magnet Music Man bass pickup (SMB-4A 3 coil, SMB-5A 3 coil) that’s…$229.00 Brand_assets_master available
VIEW/BUY
- Vintage P-BassP-Bass PickupVintage correct split-coil P Bass pickup made to look and sound like the late 50s…$99.00 Brand_assets_master available
VIEW/BUY
');jQuery('div.woocommerce-tabs').append('');jQuery('div.woocommerce-tabs .wc-tabs, div.woocommerce-tabs .wc-tab').addClass('exchange21');var h1title = jQuery('h1.product_title').html();h1title = h1title.replace("®", "®");jQuery('h1.product_title').html(h1title);jQuery('h1.product_title').append(' 4 String');jQuery('h1.product_title').append('');updateProductBanner($);jQuery(window).on('resize', function(){ updateProductBanner($); });jQuery('select#pa_strings').after('<'+'img'+' src="https://www.seymourduncan.com/wp-content/uploads/2019/07/noun-info-2269947.png">
Strings
Select the number of strings you have on your bass.
');jQuery('select#pa_position').after('<'+'img'+' src="https://www.seymourduncan.com/wp-content/uploads/2019/07/noun-info-2269947.png">
Position
Choose the position you\'re looking for.
'); jQuery('select#pa_color').after('<'+'img'+' src="https://www.seymourduncan.com/wp-content/uploads/2019/07/noun-info-2269947.png">
Color
Choose the cover color you want.
');jQuery('select#pa_cable').after('<'+'img'+' src="https://www.seymourduncan.com/wp-content/uploads/2019/07/noun-info-2269947.png">
Cable
Select single conductor (1c) or 4 conductor (4c) wiring. 4 conductor offers more wiring options while single conductor is vintage spec.
');//alert(); jQuery('select#pa_humbucker-strings').after('<'+'img'+' src="https://www.seymourduncan.com/wp-content/uploads/2019/07/noun-info-2269947.png">
Strings
Select the number of strings on your guitar.
'); jQuery('a.reset_variations').text('Click here to reset choices'); if( jQuery('#tab-title-tech-specs').length > 0 ){tab_tech_specs = jQuery('.tech-specs-tab').html();jQuery('.tech-specs-tab').html('');}jQuery('#tab-title-tech-specs').click(function(){if( jQuery('.tech-specs-tab').html() == '' )jQuery('.tech-specs-tab').html(tab_tech_specs);});if( jQuery('.woocommerce-tabs ul.tabs li').length > 4 ){if( jQuery('.woocommerce-tabs ul.tabs li').length == 5 )jQuery('.woocommerce-tabs ul.tabs li').addClass("width5");if( jQuery('.woocommerce-tabs ul.tabs li').length == 6 )jQuery('.woocommerce-tabs ul.tabs li').addClass("width6");}original_price = jQuery('p.price').html();jQuery('table.variations select').on('change', function(){if( jQuery(this).val() != '' )setTimeout(function(){sdUpdateProductPrice('0');}, 100);elsesetTimeout(function(){sdUpdateProductPrice('1');}, 100);});jQuery('.reset_variations').on('click', function(){setTimeout(function(){sdUpdateProductPrice('1');}, 100);});});function updateProductBanner($){var wWidth = jQuery(window).width();var oTitle = jQuery('#product-banner h1');var tTitle = oTitle.text();if( wWidth > 1024 ){if( tTitle.length > 16 ){oTitle.attr('style', 'font-size: 100px !important');} else {oTitle.attr('style', 'font-size: 125px !important');}} else {if( tTitle.length > 16 ){oTitle.attr('style', 'font-size: 45px !important');} else {oTitle.attr('style', 'font-size: 65px !important');}}}function sdUpdateProductPrice(clr){ console.log('price'+clr)if( clr == '0' && jQuery('.single_variation').css('display') == 'block' ){jQuery('p.price').html(jQuery('.woocommerce-variation-price .price').html());} else {jQuery('p.price').html(original_price);}}
