Several turntables ship with an overhang that is not the Baerwald figure. This table puts the two side by side for every deck in our geometry table whose maker publishes both effective length and overhang. That is 17 decks, built on seven distinct arm designs: the Technics SL-1200MK7 and SL-1500C share one published geometry, as do three Pro-Ject Debut models, three Rega Planars and six Fluance models. Count the rows as 17 decks, not 17 independent measurements.
How it is computed: for each deck, pivot-to-spindle distance d is the published value where the maker gives one, otherwise effective length minus overhang. The Baerwald overhang for that d is sqrt(d² + 66.0 × 120.9) − d, using the Baerwald null points of 66.0 and 120.9 mm on IEC groove radii (see the formulas and sources ). Where the maker also publishes the offset angle, the last column gives the two null points the factory geometry implies, found from the same triangle relationship.
| Turntable | Pivot to spindle (mm) | Factory overhang (mm) | Baerwald overhang (mm) | Factory minus Baerwald (mm) | Null points implied by the factory geometry (mm) | Source |
|---|---|---|---|---|---|---|
| Technics SL-1200MK7 | 215.0 (derived) | 15.00 | 17.82 | -2.82 | 58.8 and 113.5 | Technics SL-1200MK7 specifications (hosted by Panasonic North America) |
| Technics SL-1500C | 215.0 (derived) | 15.00 | 17.82 | -2.82 | 58.8 and 113.5 | Technics SL-1500C catalog specifications (hosted by Panasonic North America) |
| Pro-Ject Debut Carbon EVO | 200.0 | 18.50 | 19.04 | -0.54 | Not computable: offset angle not published | Pro-Ject Debut Carbon EVO instructions for use (effective length, overhang); pivot-to-spindle from the Pro-Ject Align it S guide |
| Pro-Ject Debut PRO | 200.0 | 18.50 | 19.04 | -0.54 | Not computable: offset angle not published | Pro-Ject Debut PRO manual (effective length, overhang); pivot-to-spindle from the Pro-Ject Align it S guide |
| Pro-Ject Debut S | 200.0 (derived) | 18.50 | 19.04 | -0.54 | Not computable: offset angle not published | Pro-Ject Debut S instructions for use |
| Rega Planar 2 (RB220 arm) | 222.0 | 14.50 | 17.30 | -2.80 | 56.9 and 116.8 | Rega RB220 tonearm specifications; the Planar 2 page names the RB220 |
| Rega Planar 3 (RB330 arm) | 222.0 | 14.50 | 17.30 | -2.80 | 56.9 and 116.8 | Rega RB330 tonearm specifications; the Planar 3 page names the RB330 |
| Rega Planar 6 (RB330 arm) | 222.0 | 14.50 | 17.30 | -2.80 | 56.9 and 116.8 | Rega RB330 tonearm specifications; the Planar 6 page names the RB330 |
| Denon DP-400 | 204.0 (derived) | 16.00 | 18.70 | -2.70 | Not computable: offset angle not published | Denon DP-400 owner's manual, Specifications |
| Denon DP-3000NE | 230.0 (derived) | 14.00 | 16.74 | -2.74 | Not computable: offset angle not published | Denon DP-3000NE owner's manual, Specifications |
| Fluance RT80 | 204.8 (derived) | 19.20 | 18.63 | +0.57 | Not computable: offset angle not published | Fluance Stylus Replacement/Upgrade Guide, Classic and Elite (RT80/RT81) specifications |
| Fluance RT81 | 204.8 (derived) | 19.20 | 18.63 | +0.57 | Not computable: offset angle not published | Fluance Stylus Replacement/Upgrade Guide, Classic and Elite (RT80/RT81) specifications |
| Fluance RT82 | 204.8 (derived) | 19.20 | 18.63 | +0.57 | Not computable: offset angle not published | Fluance RT82, RT83, RT84 user manual |
| Fluance RT83 | 204.8 (derived) | 19.20 | 18.63 | +0.57 | Not computable: offset angle not published | Fluance RT82, RT83, RT84 user manual |
| Fluance RT84 | 204.8 (derived) | 19.20 | 18.63 | +0.57 | Not computable: offset angle not published | Fluance RT82, RT83, RT84 user manual |
| Fluance RT85 | 204.8 (derived) | 19.20 | 18.63 | +0.57 | Not computable: offset angle not published | Fluance Stylus Replacement/Upgrade Guide, Reference (RT82 to RT85) specifications |
| U-Turn Orbit Theory | 201.0 (derived) | 19.00 | 18.96 | +0.04 | Not computable: offset angle not published | U-Turn Orbit Theory product page, specifications |
What the table does and does not show
- Factory overhang is the maker’s published figure. It is not a measurement, and nobody here measured any of these decks.
- A factory overhang that differs from the Baerwald overhang is not an error. The documents we read do not say which alignment goal a factory geometry targets. For the two makers who publish the offset angle as well, Technics and Rega, the implied null points sit near 57 to 59 mm and 113 to 117 mm, closer to an inner-groove-weighted design than to Baerwald’s 66.0 and 120.9 mm. We do not claim that is the makers’ intention.
- A deck with a fixed headshell or a mounting template may not be adjustable to a different overhang at all. Check the manual before moving anything.
- Pro-Ject’s E1.2 manual prints an overhang of 22.0 mm for its 8.6-inch arm, against 18.5 mm on the Debut models with the same effective length. We left the E1.2 out until the two can be reconciled.
- The table is limited to what we could open and verify. Audio-Technica, Sony, Thorens and many other makers are missing; see the protractor page for what is covered.
Download the data: factory-overhang-vs-baerwald.csv (CSV with one source URL per row), or the full geometry table as CSV . To print a protractor for any of these decks, use the alignment protractor generator .
Sources
Each row links to the maker’s document it was read from. Groove radii and Baerwald null points: The Listening Suite, tonearm geometry and terms .
See Also
If you want to move from general advice into actual product choices, start with Why Does My Turntable Hum? Phono Preamp Hum Causes and Fixes, Replacement Stylus by Cartridge Model: Chart of Maker-Listed Parts, and Do I Need a Phono Preamp? What It Does and When You Need One.
For a wider picture after the basics, Best Stylus Force Gauges: Digital Scales vs Balance Gauges and Best Vinyl Cleaning Kit for First-Time Owners: Simple Starter Picks are the next places to read.