TonePros LPM04 Tune-o-matic Bridge / Tailpiece Set - Chrome Small Posts

TonePros LPM04 Tune-o-matic Bridge / Tailpiece Set – Chrome Small Posts

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Original price was: $280.00.Current price is: $249.00.

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TonePros LPM04 — T3BP Bridge and T1Z Stop Tailpiece Set, Chrome (LPM04-C)

The TonePros LPM04-C is a chrome bridge and stop tailpiece set for US standard Nashville-style electric guitars — the T3BP Tune-o-matic bridge and T1Z stop tailpiece in a single upgrade package, with TonePros' patented locking post system across both components. T3BP bridge specifications: 2-1/16" (52mm) string spread, 12" (304.80mm) saddle radius, 2-29/32" (73.5mm) post spacing, 10-32 imperial post threads, notched saddles, closed-bottom Zamak body with brass saddles and posts. T1Z tailpiece specifications: 3-7/32" (82mm) stud spacing, 5/16-24 post threads, Zamak body with brass studs. Includes posts, studs and bushings. The LPM04 is a drop-in replacement for most US Nashville-spec guitars — one of the most effective single hardware upgrades available for an electric guitar.

Angkor Music — Why Locking Hardware Makes a Difference, Nashville vs ABR-1 Thread Specification, and What You Get in the LPM04 Set

Three things define the LPM04. First, the TonePros locking system. Most production electric guitars mount the bridge and tailpiece on threaded posts that sit in metal bushings pressed into the body. These posts are not locked in position — they are held by thread friction and the tension of the strings. Under string tension this is adequate, but the hardware can micro-shift relative to the guitar body, particularly the bridge, which affects the efficiency of vibration transfer between strings, hardware and body. TonePros' patented locking system uses set screws to positively lock each post in position once the guitar is set up — the bridge and tailpiece are immovably anchored to the body, eliminating any micro-movement and producing a more complete transfer of string vibration into the guitar's resonant structure. The audible result is more sustain, richer harmonics and a more alive, resonant overall tone — the guitar rings as a single unified piece rather than as a collection of components that can move slightly relative to each other. Second, Nashville vs ABR-1 thread specification. The LPM04 uses 10-32 imperial thread on the bridge posts and 5/16-24 thread on the tailpiece studs — the US standard Nashville specification used on the vast majority of American-made and American-spec electric guitars including Gibson USA instruments and similarly specified imports. This is different from the ABR-1 vintage specification (6/32 thread) used on pre-1970s-style bridges. If your guitar has Nashville-spec posts — larger diameter, coarser thread — the LPM04 is the correct TonePros upgrade. If your guitar has vintage ABR-1 posts, the TonePros AVR2 is the correct choice. Confirming your thread specification before ordering is essential — see the FAQ below. Third, what the set includes. The LPM04 contains both the T3BP Tune-o-matic bridge and the T1Z stop tailpiece — the complete bridge/tailpiece hardware upgrade in one package. Upgrading both components simultaneously means the entire string anchor-to-bridge assembly is locked, which produces the maximum benefit from TonePros' system. Upgrading only the bridge while leaving a floating production tailpiece in place means the tailpiece's micro-movement remains a variable. The LPM04 eliminates both simultaneously. We stock TonePros at Angkor Music across the full range — contact us if you need help confirming thread specification compatibility for your guitar.

Nashville vs ABR-1 — Confirming Your Guitar's Thread Specification

Specification Nashville (US Standard) ABR-1 Vintage
Bridge post thread 10-32 imperial — LPM04 (this set) 6/32 — TonePros AVR2
Post diameter Larger — Nashville bushing Smaller — vintage bushing
Typical guitars Gibson USA (post-1975), Epiphone, PRS, most import LP-style Pre-1975 Gibson, vintage-spec reissues
Interchangeable? No — metric and imperial threads are not interchangeable. Confirm your specification before ordering.

T3BP Bridge — Notched Saddles, Closed Bottom, Brass and Zamak Construction

The T3BP is a Nashville-spec Tune-o-matic bridge with several construction details worth understanding:

Notched saddles:
The T3BP saddles come pre-notched for each string — the string slots are already cut into each saddle at the correct string spacing. This means installation is straightforward: drop the bridge onto the posts, install the strings, and the string positions are already established. Bridges without notched saddles require custom slotting either at purchase or by a luthier.

Closed-bottom construction:
The T3BP has a closed bottom on the bridge housing — the underside of the bridge is enclosed rather than open. Closed-bottom construction produces a different resonance transfer characteristic from the string contact points to the bridge housing and through the posts into the body, contributing to the fuller tone that TonePros bridges are known for.

Zamak body with brass saddles and posts:
The bridge body is Zamak — a die-cast zinc alloy that provides structural precision and dimensional stability. The saddles and posts are brass — a denser, more tonally resonant metal that contributes sustain and harmonic richness at the contact points where string vibration is most directly transferred. The combination of Zamak body and brass saddles is a deliberate tonal choice, not a cost compromise.

12" saddle radius:
The T3BP saddles are set to a 12" radius — a comfortable modern playing radius that suits most electric guitar fretboard specifications.

T1Z Stop Tailpiece — Locking Brass Studs

The T1Z stop tailpiece pairs with the T3BP bridge to complete the LPM04 set. Like the bridge, the T1Z uses TonePros' locking stud system — the tailpiece studs lock positively into the body bushings, eliminating the floating movement that production stop tailpieces can exhibit under string tension. The Zamak body with brass studs mirrors the T3BP's construction philosophy — structural precision from the Zamak housing, tonal density from the brass contact points.

Stud spacing of 3-7/32" (82mm) is the US standard stop tailpiece measurement used on the vast majority of Nashville-spec American and American-style electric guitars.

Complete Hardware Upgrade — Why Both Components Together

The reason TonePros packages the LPM04 as a bridge and tailpiece set rather than just a bridge is acoustic logic: on a stop tailpiece guitar, the string runs from the tailpiece over the bridge saddles to the tuners. Any micro-movement in either the bridge or the tailpiece represents energy loss — vibration that escapes the string-to-body resonance path and goes nowhere useful. Locking only the bridge while leaving a floating tailpiece still results in energy loss at the tailpiece stud. The LPM04 locks both ends of the string path simultaneously, producing the maximum possible resonance transfer from strings to body.

Who Is the TonePros LPM04 For?

  • Players with Nashville-spec (10-32 thread) electric guitars who want more sustain and resonance from their existing instrument
  • Gibson USA, Epiphone, PRS and similarly spec'd guitar owners looking for a drop-in hardware upgrade without modification
  • Players who have heard TonePros' reputation and want the locking system across both bridge and tailpiece simultaneously
  • Players whose production bridge or tailpiece has shown signs of micro-movement or instability under string tension
  • Players with vintage ABR-1 spec (6/32 thread) guitars should choose the TonePros AVR2 — not the LPM04
  • Players with metric-thread guitars (common on non-US-spec instruments) should confirm thread specification before ordering

Specifications — T3BP Bridge

SKU LPM04-C
Brand TonePros
Set Contents T3BP Tune-o-matic Bridge + T1Z Stop Tailpiece + posts, studs and bushings
Finish Chrome
Thread Standard Imperial — Nashville US standard
Bridge Post Thread 10-32
Bridge Post Spacing 2-29/32" (73.5mm)
Bridge String Spread 2-1/16" (52mm)
Bridge Saddle Radius 12" (304.80mm)
Bridge Saddles Notched brass
Bridge Body Zamak — closed bottom
Bridge Adjustment Phillips head screwdriver
Tailpiece Thread 5/16-24
Tailpiece Stud Spacing 3-7/32" (82mm)
Tailpiece Body Zamak with brass studs
Locking System TonePros patented — bridge and tailpiece
Colour Variants Chrome (LPM04-C) / Nickel (LPM04-N) / Gold (LPM04-G) / Black (LPM04-B)

Expert Advice at Angkor Music

At Angkor Music Melbourne we stock TonePros hardware across the full range. If you are unsure whether the LPM04 is the correct thread specification for your guitar, contact us with your guitar's make, model and year before ordering.


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Frequently Asked Questions

How do I know if my guitar uses Nashville or ABR-1 specification?
The simplest check is to measure the diameter of the posts that hold your current bridge in the body. Nashville-spec posts are larger in diameter than ABR-1 vintage posts — they require larger bushing holes in the guitar body. Visually, Nashville bridges typically have thicker, more substantial posts and a slightly heavier overall appearance than vintage ABR-1 bridges. On Gibson USA instruments, Nashville spec has been standard since the mid-1970s. Pre-1975 Gibsons and vintage-spec reissues typically use ABR-1 spec. If you are uncertain, contact us with your guitar's make, model and year.

Will the LPM04 fit my guitar without modification?
For most US Nashville-spec guitars it is a drop-in replacement — the posts thread directly into the existing bushings and no routing, drilling or modification is required. Confirm that your existing bridge uses 10-32 post threads and your tailpiece uses 5/16-24 stud threads before ordering. The post spacing (2-29/32" / 73.5mm bridge, 3-7/32" / 82mm tailpiece) should also match your guitar's existing hardware layout.

What difference will I actually hear from locking hardware?
The improvement from TonePros locking hardware is most noticeable as increased sustain — notes ring for longer before decaying. Players also typically notice richer harmonic content in sustained notes and a more resonant, alive character from the instrument overall. The improvement is consistently audible when comparing a locked TonePros set against the production hardware on a mid-level instrument, and many players describe it as the instrument suddenly revealing tonal character that was previously being lost to hardware micro-movement.

What is Zamak and how does it affect tone?
Zamak is a zinc-based die-cast alloy widely used in guitar hardware manufacturing for its dimensional precision and structural stability. It is not the most tonally resonant metal — which is why TonePros uses brass for the saddles, posts and studs, where direct string contact and vibration transfer occur. The Zamak housing provides structural accuracy and stability; the brass components at the contact points provide tonal density and sustain. This is a deliberate construction choice rather than a cost compromise.

Can I buy just the bridge or just the tailpiece separately?
TonePros sells bridge and tailpiece components both as sets and individually across the range. For maximum acoustic benefit, upgrading both components simultaneously is recommended — locking only the bridge while leaving a floating production tailpiece means vibration loss at the tailpiece stud remains. Contact us at Angkor Music to discuss individual component options if required.

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Additional information

Weight 0.21 kg
type

Bridge

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