Table:
text: Grado Labs
Current line of headphones
Current line of headphones
Headphone_Model Headphone_Class Driver_matched_dB Construction Earpads Termination US_MSRP
iGrado Prestige 0.1 Plastic Comfort Pads 1/8 (3.5 mm) plug $49
SR60i Prestige 0.1 Plastic Comfort Pads 1/8 (3.5 mm) plug with 1/4 adaptor $79
SR80i Prestige 0.1 Plastic Comfort Pads 1/8 (3.5 mm) plug with 1/4 adaptor $99
SR125i Prestige 0.1 Plastic Comfort Pads 1/4 (6.5 mm) plug $150
SR225i Prestige 0.05 Plastic Bowls 1/4 (6.5 mm) plug $200
SR325is Prestige 0.05 Aluminum alloy/ Plastic inner sleeve Bowls 1/4 (6.5 mm) plug $295
RS2i Reference 0.05 Hand-Crafted Mahogany Bowls 1/4 (6.5 mm) plug $495
RS1i Reference 0.05 Hand-Crafted Mahogany Bowls 1/4 (6.5 mm) plug $695

Question: Which headphone models match Grado Labs' current line of headphones (MSRP $150)?

Question: What ports match a US MSRP of $49 in Grado Labs' current line of headphones?

Question: How many grades of headphones in Grado Labs current line of headphones have a US MSRP of $150?

Question: How many earpad values correspond to the Prestige headphone class and a US MSRP of $79 in Grado Labs' current line of headphones?

Question: Which Grado Labs headphone models have a driver matched DB of 0.1 and a US MSRP of $49 to use the current headphone line?

Question: Which connectors correspond to the SR80I headphone model of the current Grado Labs headphone range?