Inside the spreadsheet, can you explain the 'Table Legend'?
- Manufacturer
Sorted by, first
- Model
Sorted by, second
- Discontinued: Yes/blank
I look at the mfg website to see if there's any indication this was discontinued
- Mfg Link
Direct link to website
- Manual
Link to pdf, to save you time having to hunt down the links
- Price
If bold, price was taken from mfg website. If non-bold, price was taken from 3rd party website. If "n/a" it means I couldnt find any reliable sellers that sell that item. I specifically ignored website that sell 2nd-hand, like ebay, etc. For Canadian and US market, I know the market well, so it was easy to find reliable price data. For European website, it was more challenging, but I think it turned out okay. Let me know if there's any major mistakes there.
- Currency
Added currency that I saw for each item, from the same website. I tried to match currency with company's headquarters (example: for US company, currency in USD).
- Frequent Sale Price
Any sale price (in original currency)
- Converted to USD
This is an automatic conversion (that runs hourly?) from original currency to USD
- Converted to CAD
This is an automatic conversion (that runs hourly?) from original currency to CAD
- Converted to EUR
This is an automatic conversion (that runs hourly?) from original currency to EUR
- Converted to GBP
This is an automatic conversion (that runs hourly?) from original currency to GBP
- # of woofers
# of active woofers, not passive woofers (like those in passive radiator)
- Woofer Size
In Inches
- Type
Sealed, ported (front, rear, side, bottom), passive radiator, in-wall, horn
- Passive: Yes/blank
If the subwoofer has speaker terminals, and requires an external amplifier to work. If passive, you'll see "Yes". If left others blank, for easier identification.
- Source of CEA-2010-A data
Showing the source, 'Colour coded' by source, see colour guide below.
- Version Tested
Showing the exact configuration tested (ex. 1 port open, 2 ports open, etc) 'Colour coded' by source, see colour guide below.
- 10hz to 125hz
CEA-2010-A data, shown as '2m Peak SPL'. 'Colour coded' by source, see colour guide below.
- Actual Audioholics' Bassaholic Rank
Given by Audioholics.com
- My Calculated Audioholics' Bassaholic Rank
See tab "Bassaholic" to understand how I calculated this.
- My Notes
I classified subwoofers with extra classifications, like "sphere" or "cylinder" or "PA sub" or "low profile (<8in) (aka pancake subs)". For some, I added alternate name or product #s for subs.
- Warranty
Most mfg websites just listed the one warranty (usually for all countries). But some listed "USA-only" warranties, so I used those links where possible. (See below for explanation).
- High Pass Filter
Also known as 'low-cut filter'. There are 3 methods of implementing a "High Pass Filter" (aka HPF). A) Where the subwoofer manufacturer implemented a fixed HPF for RCA/XLR inputs/outputs at the typical crossover point of 80hz (sometimes close to it). Essentially, you send the signal to sub, the sub applies the HPF and sends the rest of the signal to the speakers. Often times, subs that were made for "studio monitors" have this option. B) Where the subwoofer manufacturer implemented it's own fixed HPF below very low frequencies (say, between 12hz and 30hz). Modern non-DIY active subwoofers have it's own HPF filter for very low frequencies (say 10-30hz). You won't know about these, because manufacturers implement these in the crossover/DSP, but won't advertise that they did this. C) Where the subwoofer manufacturer implemented a *variable* HPF, but only for very low frequencies (say, between 12hz and 30hz). The user can *selectively* apply their chosen HPF to cut some very low frequencies using the subwoofer's dip-switches/user-interface. Example: Arendal's subsonic filters can filter "Hz: 12,16,21,25,31 with dB/octave: 6,12 using on-screen-display."
- Analog XLR Input: Yes/No/N/a
If "Yes", this subwoofer has balanced XLR inputs. Useful when you have studio monitors and want to connect to a subwoofer. Or simply want to have a fully balanced solution (cables, DAC, amp, etc).
- Height (in) x Width (in) x Depth (in)
In Inches
- Volume (ft^3)
Showing volume in in^3 will be a large number, so I converted to ft^3 to make it easier to view
- Height (cm) x Width (cm) x Depth (cm)
Simple math conversion where 1 in = 2.54 cm. This was not taken from mfg website.
- Volume (m^3)
Showing volume in cm^3 will be a large number, so I converted to m^3 to make it easier to view
- Company's Headquarters (Country)
Location of Company
